Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) # java.lang Provides classes that are fundamental to the design of the Java programming language. The most important classes are `Object`, which is the root of the class hierarchy, and `Class`, instances of which represent classes at run time. Frequently it is necessary to represent a value of primitive type as if it were an object. The wrapper classes `Boolean`, `Character`, `Integer`, `Long`, `Float`, and `Double` serve this purpose. An object of type `Double`, for example, contains a field whose type is double, representing that value in such a way that a reference to it can be stored in a variable of reference type. These classes also provide a number of methods for converting among primitive values, as well as supporting such standard methods as equals and hashCode. The `Void` class is a non-instantiable class that holds a reference to a `Class` object representing the type void. The class `Math` provides commonly used mathematical functions such as sine, cosine, and square root. The classes `String`, `StringBuffer`, and `StringBuilder` similarly provide commonly used operations on character strings. Classes `ClassLoader`, `Process`, `ProcessBuilder`, `Runtime`, `SecurityManager`, and `System` provide "system operations" that manage the dynamic loading of classes, creation of external processes, host environment inquiries such as the time of day, and enforcement of security policies. Class `Throwable` encompasses objects that may be thrown by the `throw` statement. Subclasses of `Throwable` represent errors and exceptions. ## Character Encodings The specification of the `https://developer.android.com/reference/java/nio/charset/Charset` class describes the naming conventions for character encodings as well as the set of standard encodings that must be supported by every implementation of the Java platform. ## Annotations |---|---| | [Deprecated](https://developer.android.com/reference/java/lang/Deprecated) | A program element annotated `@Deprecated` is one that programmers are discouraged from using. | | [FunctionalInterface](https://developer.android.com/reference/java/lang/FunctionalInterface) | An informative annotation type used to indicate that an interface type declaration is intended to be a *functional interface* as defined by the Java Language Specification. | | [Override](https://developer.android.com/reference/java/lang/Override) | Indicates that a method declaration is intended to override a method declaration in a supertype. | | [SafeVarargs](https://developer.android.com/reference/java/lang/SafeVarargs) | A programmer assertion that the body of the annotated method or constructor does not perform potentially unsafe operations on its varargs parameter. | | [SuppressWarnings](https://developer.android.com/reference/java/lang/SuppressWarnings) | Indicates that the named compiler warnings should be suppressed in the annotated element (and in all program elements contained in the annotated element). | ## Interfaces |---|---| | [Appendable](https://developer.android.com/reference/java/lang/Appendable) | An object to which `char` sequences and values can be appended. | | [AutoCloseable](https://developer.android.com/reference/java/lang/AutoCloseable) | An object that may hold resources (such as file or socket handles) until it is closed. | | [CharSequence](https://developer.android.com/reference/java/lang/CharSequence) | A `CharSequence` is a readable sequence of `char` values. | | [Cloneable](https://developer.android.com/reference/java/lang/Cloneable) | A class implements the `Cloneable` interface to indicate to the `https://developer.android.com/reference/java/lang/Object#clone()` method that it is legal for that method to make a field-for-field copy of instances of that class. | | [Comparable](https://developer.android.com/reference/java/lang/Comparable)\ | This interface imposes a total ordering on the objects of each class that implements it. | | [Iterable](https://developer.android.com/reference/java/lang/Iterable)\ | Implementing this interface allows an object to be the target of the enhanced `for` statement (sometimes called the "for-each loop" statement). | | [Readable](https://developer.android.com/reference/java/lang/Readable) | A `Readable` is a source of characters. | | [Runnable](https://developer.android.com/reference/java/lang/Runnable) | The `Runnable` interface should be implemented by any class whose instances are intended to be executed by a thread. | | [StackWalker.StackFrame](https://developer.android.com/reference/java/lang/StackWalker.StackFrame) | A `StackFrame` object represents a method invocation returned by `https://developer.android.com/reference/java/lang/StackWalker`. | | [Thread.UncaughtExceptionHandler](https://developer.android.com/reference/java/lang/Thread.UncaughtExceptionHandler) | Interface for handlers invoked when a `Thread` abruptly terminates due to an uncaught exception. | ## Classes |---|---| | [Boolean](https://developer.android.com/reference/java/lang/Boolean) | The Boolean class wraps a value of the primitive type `boolean` in an object. | | [Byte](https://developer.android.com/reference/java/lang/Byte) | The `Byte` class wraps a value of primitive type `byte` in an object. | | [Character](https://developer.android.com/reference/java/lang/Character) | The `Character` class is the [wrapper class](https://developer.android.com/reference/java/lang/package-summary) for values of the primitive type `char`. | | [Character.Subset](https://developer.android.com/reference/java/lang/Character.Subset) | Instances of this class represent particular subsets of the Unicode character set. | | [Character.UnicodeBlock](https://developer.android.com/reference/java/lang/Character.UnicodeBlock) | A family of character subsets representing the character blocks in the Unicode specification. | | [Class](https://developer.android.com/reference/java/lang/Class)\ | Instances of the class `Class` represent classes and interfaces in a running Java application. | | [ClassLoader](https://developer.android.com/reference/java/lang/ClassLoader) | A class loader is an object that is responsible for loading classes. | | [ClassValue](https://developer.android.com/reference/java/lang/ClassValue)\ | Lazily associate a computed value with any `Class` object. | | [Compiler](https://developer.android.com/reference/java/lang/Compiler) | Does nothing on Android. | | [Double](https://developer.android.com/reference/java/lang/Double) | The `Double` class wraps a value of the primitive type `double` in an object. | | [Enum](https://developer.android.com/reference/java/lang/Enum)\\> | This is the common base class of all Java language enumeration classes. | | [Float](https://developer.android.com/reference/java/lang/Float) | The `Float` class wraps a value of primitive type `float` in an object. | | [InheritableThreadLocal](https://developer.android.com/reference/java/lang/InheritableThreadLocal)\ | This class extends `ThreadLocal` to provide inheritance of values from parent thread to child thread: when a child thread is created, the child receives initial values for all inheritable thread-local variables for which the parent has values. | | [Integer](https://developer.android.com/reference/java/lang/Integer) | The `Integer` class wraps a value of the primitive type `int` in an object. | | [Long](https://developer.android.com/reference/java/lang/Long) | The `Long` class wraps a value of the primitive type `long` in an object. | | [Math](https://developer.android.com/reference/java/lang/Math) | The class `Math` contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions. | | [Number](https://developer.android.com/reference/java/lang/Number) | The abstract class `Number` is the superclass of platform classes representing numeric values that are convertible to the primitive types `byte`, `double`, `float`, `int`, `long`, and `short`. | | [Object](https://developer.android.com/reference/java/lang/Object) | Class `Object` is the root of the class hierarchy. | | [Package](https://developer.android.com/reference/java/lang/Package) | `Package` objects contain version information about the implementation and specification of a Java package. | | [Process](https://developer.android.com/reference/java/lang/Process) | The `https://developer.android.com/reference/java/lang/ProcessBuilder#start()` and `https://developer.android.com/reference/java/lang/Runtime#exec(java.lang.String[],%20java.lang.String[],%20java.io.File)` methods create a native process and return an instance of a subclass of `Process` that can be used to control the process and obtain information about it. | | [ProcessBuilder](https://developer.android.com/reference/java/lang/ProcessBuilder) | This class is used to create operating system processes. | | [ProcessBuilder.Redirect](https://developer.android.com/reference/java/lang/ProcessBuilder.Redirect) | Represents a source of subprocess input or a destination of subprocess output. | | [Record](https://developer.android.com/reference/java/lang/Record) | This is the common base class of all Java language record classes. | | [Runtime](https://developer.android.com/reference/java/lang/Runtime) | Every Java application has a single instance of class `Runtime` that allows the application to interface with the environment in which the application is running. | | [RuntimePermission](https://developer.android.com/reference/java/lang/RuntimePermission) | Legacy security code; do not use. | | [SecurityManager](https://developer.android.com/reference/java/lang/SecurityManager) | Legacy security code; do not use. | | [Short](https://developer.android.com/reference/java/lang/Short) | The `Short` class wraps a value of primitive type `short` in an object. | | [StackTraceElement](https://developer.android.com/reference/java/lang/StackTraceElement) | An element in a stack trace, as returned by `https://developer.android.com/reference/java/lang/Throwable#getStackTrace()`. | | [StackWalker](https://developer.android.com/reference/java/lang/StackWalker) | A stack walker. | | [StrictMath](https://developer.android.com/reference/java/lang/StrictMath) | The class `StrictMath` contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions. | | [String](https://developer.android.com/reference/java/lang/String) | The `String` class represents character strings. | | [StringBuffer](https://developer.android.com/reference/java/lang/StringBuffer) | A thread-safe, mutable sequence of characters. | | [StringBuilder](https://developer.android.com/reference/java/lang/StringBuilder) | A mutable sequence of characters. | | [System](https://developer.android.com/reference/java/lang/System) | The `System` class contains several useful class fields and methods. | | [Thread](https://developer.android.com/reference/java/lang/Thread) | A *thread* is a thread of execution in a program. | | [ThreadGroup](https://developer.android.com/reference/java/lang/ThreadGroup) | A thread group represents a set of threads. | | [ThreadLocal](https://developer.android.com/reference/java/lang/ThreadLocal)\ | This class provides thread-local variables. | | [Throwable](https://developer.android.com/reference/java/lang/Throwable) | The `Throwable` class is the superclass of all errors and exceptions in the Java language. | | [Void](https://developer.android.com/reference/java/lang/Void) | The `Void` class is an uninstantiable placeholder class to hold a reference to the `Class` object representing the Java keyword void. | ## Enums |---|---| | [Character.UnicodeScript](https://developer.android.com/reference/java/lang/Character.UnicodeScript) | A family of character subsets representing the character scripts defined in the [*Unicode Standard Annex #24: Script Names*](http://www.unicode.org/reports/tr24/). | | [ProcessBuilder.Redirect.Type](https://developer.android.com/reference/java/lang/ProcessBuilder.Redirect.Type) | The type of a `https://developer.android.com/reference/java/lang/ProcessBuilder.Redirect`. | | [StackWalker.Option](https://developer.android.com/reference/java/lang/StackWalker.Option) | Stack walker option to configure the [stack frame](https://developer.android.com/reference/java/lang/StackWalker.StackFrame) information obtained by a `StackWalker`. | | [Thread.State](https://developer.android.com/reference/java/lang/Thread.State) | A thread state. | ## Exceptions |---|---| | [ArithmeticException](https://developer.android.com/reference/java/lang/ArithmeticException) | Thrown when an exceptional arithmetic condition has occurred. | | [ArrayIndexOutOfBoundsException](https://developer.android.com/reference/java/lang/ArrayIndexOutOfBoundsException) | Thrown to indicate that an array has been accessed with an illegal index. | | [ArrayStoreException](https://developer.android.com/reference/java/lang/ArrayStoreException) | Thrown to indicate that an attempt has been made to store the wrong type of object into an array of objects. | | [ClassCastException](https://developer.android.com/reference/java/lang/ClassCastException) | Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance. | | [ClassNotFoundException](https://developer.android.com/reference/java/lang/ClassNotFoundException) | Thrown when an application tries to load in a class through its string name using: - The `forName` method in class `Class`. | | [CloneNotSupportedException](https://developer.android.com/reference/java/lang/CloneNotSupportedException) | Thrown to indicate that the `clone` method in class `Object` has been called to clone an object, but that the object's class does not implement the `Cloneable` interface. | | [EnumConstantNotPresentException](https://developer.android.com/reference/java/lang/EnumConstantNotPresentException) | Thrown when an application tries to access an enum constant by name and the enum type contains no constant with the specified name. | | [Exception](https://developer.android.com/reference/java/lang/Exception) | The class `Exception` and its subclasses are a form of `Throwable` that indicates conditions that a reasonable application might want to catch. | | [IllegalAccessException](https://developer.android.com/reference/java/lang/IllegalAccessException) | An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor. | | [IllegalArgumentException](https://developer.android.com/reference/java/lang/IllegalArgumentException) | Thrown to indicate that a method has been passed an illegal or inappropriate argument. | | [IllegalCallerException](https://developer.android.com/reference/java/lang/IllegalCallerException) | Thrown to indicate that a method has been called by an inappropriate caller. | | [IllegalMonitorStateException](https://developer.android.com/reference/java/lang/IllegalMonitorStateException) | Thrown to indicate that a thread has attempted to wait on an object's monitor or to notify other threads waiting on an object's monitor without owning the specified monitor. | | [IllegalStateException](https://developer.android.com/reference/java/lang/IllegalStateException) | Signals that a method has been invoked at an illegal or inappropriate time. | | [IllegalThreadStateException](https://developer.android.com/reference/java/lang/IllegalThreadStateException) | Thrown to indicate that a thread is not in an appropriate state for the requested operation. | | [IndexOutOfBoundsException](https://developer.android.com/reference/java/lang/IndexOutOfBoundsException) | Thrown to indicate that an index of some sort (such as to an array, to a string, or to a vector) is out of range. | | [InstantiationException](https://developer.android.com/reference/java/lang/InstantiationException) | Thrown when an application tries to create an instance of a class using the `newInstance` method in class `Class`, but the specified class object cannot be instantiated. | | [InterruptedException](https://developer.android.com/reference/java/lang/InterruptedException) | Thrown when a thread is waiting, sleeping, or otherwise occupied, and the thread is interrupted, either before or during the activity. | | [MatchException](https://developer.android.com/reference/java/lang/MatchException) | Thrown to indicate an unexpected failure in pattern matching. | | [NegativeArraySizeException](https://developer.android.com/reference/java/lang/NegativeArraySizeException) | Thrown if an application tries to create an array with negative size. | | [NoSuchFieldException](https://developer.android.com/reference/java/lang/NoSuchFieldException) | Signals that the class doesn't have a field of a specified name. | | [NoSuchMethodException](https://developer.android.com/reference/java/lang/NoSuchMethodException) | Thrown when a particular method cannot be found. | | [NullPointerException](https://developer.android.com/reference/java/lang/NullPointerException) | Thrown when an application attempts to use `null` in a case where an object is required. | | [NumberFormatException](https://developer.android.com/reference/java/lang/NumberFormatException) | Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format. | | [ReflectiveOperationException](https://developer.android.com/reference/java/lang/ReflectiveOperationException) | Common superclass of exceptions thrown by reflective operations in core reflection. | | [RuntimeException](https://developer.android.com/reference/java/lang/RuntimeException) | `RuntimeException` is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine. | | [SecurityException](https://developer.android.com/reference/java/lang/SecurityException) | Thrown by the security manager to indicate a security violation. | | [StringIndexOutOfBoundsException](https://developer.android.com/reference/java/lang/StringIndexOutOfBoundsException) | Thrown by `String` methods to indicate that an index is either negative or greater than the size of the string. | | [TypeNotPresentException](https://developer.android.com/reference/java/lang/TypeNotPresentException) | Thrown when an application tries to access a type using a string representing the type's name, but no definition for the type with the specified name can be found. | | [UnsupportedOperationException](https://developer.android.com/reference/java/lang/UnsupportedOperationException) | Thrown to indicate that the requested operation is not supported. | | [WrongThreadException](https://developer.android.com/reference/java/lang/WrongThreadException) | Thrown to indicate that a method has been called on the wrong thread. | ## Errors |---|---| | [AbstractMethodError](https://developer.android.com/reference/java/lang/AbstractMethodError) | Thrown when an application tries to call an abstract method. | | [AssertionError](https://developer.android.com/reference/java/lang/AssertionError) | Thrown to indicate that an assertion has failed. | | [BootstrapMethodError](https://developer.android.com/reference/java/lang/BootstrapMethodError) | Thrown to indicate that an `invokedynamic` instruction or a dynamic constant failed to resolve its bootstrap method and arguments, or for `invokedynamic` instruction the bootstrap method has failed to provide a [call site](https://developer.android.com/reference/java/lang/invoke/CallSite) with a [target](https://developer.android.com/reference/java/lang/invoke/CallSite#getTarget()) of the correct [method type](https://developer.android.com/reference/java/lang/invoke/MethodHandle#type()), or for a dynamic constant the bootstrap method has failed to provide a constant value of the required type. | | [ClassCircularityError](https://developer.android.com/reference/java/lang/ClassCircularityError) | Thrown when the Java Virtual Machine detects a circularity in the superclass hierarchy of a class being loaded. | | [ClassFormatError](https://developer.android.com/reference/java/lang/ClassFormatError) | Thrown when the Java Virtual Machine attempts to read a class file and determines that the file is malformed or otherwise cannot be interpreted as a class file. | | [Error](https://developer.android.com/reference/java/lang/Error) | An `Error` is a subclass of `Throwable` that indicates serious problems that a reasonable application should not try to catch. | | [ExceptionInInitializerError](https://developer.android.com/reference/java/lang/ExceptionInInitializerError) | Signals that an unexpected exception has occurred in a static initializer. | | [IllegalAccessError](https://developer.android.com/reference/java/lang/IllegalAccessError) | Thrown if an application attempts to access or modify a field, or to call a method that it does not have access to. | | [IncompatibleClassChangeError](https://developer.android.com/reference/java/lang/IncompatibleClassChangeError) | Thrown when an incompatible class change has occurred to some class definition. | | [InstantiationError](https://developer.android.com/reference/java/lang/InstantiationError) | Thrown when an application tries to use the Java `new` construct to instantiate an abstract class or an interface. | | [InternalError](https://developer.android.com/reference/java/lang/InternalError) | Thrown to indicate some unexpected internal error has occurred in the Java Virtual Machine. | | [LinkageError](https://developer.android.com/reference/java/lang/LinkageError) | Subclasses of `LinkageError` indicate that a class has some dependency on another class; however, the latter class has incompatibly changed after the compilation of the former class. | | [NoClassDefFoundError](https://developer.android.com/reference/java/lang/NoClassDefFoundError) | Thrown if the Java Virtual Machine or a `ClassLoader` instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the `new` expression) and no definition of the class could be found. | | [NoSuchFieldError](https://developer.android.com/reference/java/lang/NoSuchFieldError) | Thrown if an application tries to access or modify a specified field of an object, and that object no longer has that field. | | [NoSuchMethodError](https://developer.android.com/reference/java/lang/NoSuchMethodError) | Thrown if an application tries to call a specified method of a class (either static or instance), and that class no longer has a definition of that method. | | [OutOfMemoryError](https://developer.android.com/reference/java/lang/OutOfMemoryError) | Thrown when the Java Virtual Machine cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector. | | [StackOverflowError](https://developer.android.com/reference/java/lang/StackOverflowError) | Thrown when a stack overflow occurs because an application recurses too deeply. | | [ThreadDeath](https://developer.android.com/reference/java/lang/ThreadDeath) | An instance of `ThreadDeath` is thrown in the victim thread when the (deprecated) `https://developer.android.com/reference/java/lang/Thread#stop()` method is invoked. | | [UnknownError](https://developer.android.com/reference/java/lang/UnknownError) | Thrown when an unknown but serious exception has occurred in the Java Virtual Machine. | | [UnsatisfiedLinkError](https://developer.android.com/reference/java/lang/UnsatisfiedLinkError) | Thrown if the Java Virtual Machine cannot find an appropriate native-language definition of a method declared `native`. | | [UnsupportedClassVersionError](https://developer.android.com/reference/java/lang/UnsupportedClassVersionError) | Thrown when the Java Virtual Machine attempts to read a class file and determines that the major and minor version numbers in the file are not supported. | | [VerifyError](https://developer.android.com/reference/java/lang/VerifyError) | Thrown when the "verifier" detects that a class file, though well formed, contains some sort of internal inconsistency or security problem. | | [VirtualMachineError](https://developer.android.com/reference/java/lang/VirtualMachineError) | Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating. | - ## Annotations - [Deprecated](https://developer.android.com/reference/java/lang/Deprecated) - [FunctionalInterface](https://developer.android.com/reference/java/lang/FunctionalInterface) - [Override](https://developer.android.com/reference/java/lang/Override) - [SafeVarargs](https://developer.android.com/reference/java/lang/SafeVarargs) - [SuppressWarnings](https://developer.android.com/reference/java/lang/SuppressWarnings) - ## Interfaces - [Appendable](https://developer.android.com/reference/java/lang/Appendable) - [AutoCloseable](https://developer.android.com/reference/java/lang/AutoCloseable) - [CharSequence](https://developer.android.com/reference/java/lang/CharSequence) - [Cloneable](https://developer.android.com/reference/java/lang/Cloneable) - [Comparable](https://developer.android.com/reference/java/lang/Comparable) - [Iterable](https://developer.android.com/reference/java/lang/Iterable) - [Readable](https://developer.android.com/reference/java/lang/Readable) - [Runnable](https://developer.android.com/reference/java/lang/Runnable) - [StackWalker.StackFrame](https://developer.android.com/reference/java/lang/StackWalker.StackFrame) - [Thread.UncaughtExceptionHandler](https://developer.android.com/reference/java/lang/Thread.UncaughtExceptionHandler) - ## Classes - [Boolean](https://developer.android.com/reference/java/lang/Boolean) - [Byte](https://developer.android.com/reference/java/lang/Byte) - [Character](https://developer.android.com/reference/java/lang/Character) - [Character.Subset](https://developer.android.com/reference/java/lang/Character.Subset) - [Character.UnicodeBlock](https://developer.android.com/reference/java/lang/Character.UnicodeBlock) - [Class](https://developer.android.com/reference/java/lang/Class) - [ClassLoader](https://developer.android.com/reference/java/lang/ClassLoader) - [ClassValue](https://developer.android.com/reference/java/lang/ClassValue) - [Compiler](https://developer.android.com/reference/java/lang/Compiler) - [Double](https://developer.android.com/reference/java/lang/Double) - [Enum](https://developer.android.com/reference/java/lang/Enum) - [Float](https://developer.android.com/reference/java/lang/Float) - [InheritableThreadLocal](https://developer.android.com/reference/java/lang/InheritableThreadLocal) - [Integer](https://developer.android.com/reference/java/lang/Integer) - [Long](https://developer.android.com/reference/java/lang/Long) - [Math](https://developer.android.com/reference/java/lang/Math) - [Number](https://developer.android.com/reference/java/lang/Number) - [Object](https://developer.android.com/reference/java/lang/Object) - [Package](https://developer.android.com/reference/java/lang/Package) - [Process](https://developer.android.com/reference/java/lang/Process) - [ProcessBuilder](https://developer.android.com/reference/java/lang/ProcessBuilder) - [ProcessBuilder.Redirect](https://developer.android.com/reference/java/lang/ProcessBuilder.Redirect) - [Record](https://developer.android.com/reference/java/lang/Record) - [Runtime](https://developer.android.com/reference/java/lang/Runtime) - [RuntimePermission](https://developer.android.com/reference/java/lang/RuntimePermission) - [SecurityManager](https://developer.android.com/reference/java/lang/SecurityManager) - [Short](https://developer.android.com/reference/java/lang/Short) - [StackTraceElement](https://developer.android.com/reference/java/lang/StackTraceElement) - [StackWalker](https://developer.android.com/reference/java/lang/StackWalker) - [StrictMath](https://developer.android.com/reference/java/lang/StrictMath) - [String](https://developer.android.com/reference/java/lang/String) - [StringBuffer](https://developer.android.com/reference/java/lang/StringBuffer) - [StringBuilder](https://developer.android.com/reference/java/lang/StringBuilder) - [System](https://developer.android.com/reference/java/lang/System) - [Thread](https://developer.android.com/reference/java/lang/Thread) - [ThreadGroup](https://developer.android.com/reference/java/lang/ThreadGroup) - [ThreadLocal](https://developer.android.com/reference/java/lang/ThreadLocal) - [Throwable](https://developer.android.com/reference/java/lang/Throwable) - [Void](https://developer.android.com/reference/java/lang/Void) - ## Enums - [Character.UnicodeScript](https://developer.android.com/reference/java/lang/Character.UnicodeScript) - [ProcessBuilder.Redirect.Type](https://developer.android.com/reference/java/lang/ProcessBuilder.Redirect.Type) - [StackWalker.Option](https://developer.android.com/reference/java/lang/StackWalker.Option) - [Thread.State](https://developer.android.com/reference/java/lang/Thread.State) - ## Exceptions - [ArithmeticException](https://developer.android.com/reference/java/lang/ArithmeticException) - [ArrayIndexOutOfBoundsException](https://developer.android.com/reference/java/lang/ArrayIndexOutOfBoundsException) - [ArrayStoreException](https://developer.android.com/reference/java/lang/ArrayStoreException) - [ClassCastException](https://developer.android.com/reference/java/lang/ClassCastException) - [ClassNotFoundException](https://developer.android.com/reference/java/lang/ClassNotFoundException) - [CloneNotSupportedException](https://developer.android.com/reference/java/lang/CloneNotSupportedException) - [EnumConstantNotPresentException](https://developer.android.com/reference/java/lang/EnumConstantNotPresentException) - [Exception](https://developer.android.com/reference/java/lang/Exception) - [IllegalAccessException](https://developer.android.com/reference/java/lang/IllegalAccessException) - [IllegalArgumentException](https://developer.android.com/reference/java/lang/IllegalArgumentException) - [IllegalCallerException](https://developer.android.com/reference/java/lang/IllegalCallerException) - [IllegalMonitorStateException](https://developer.android.com/reference/java/lang/IllegalMonitorStateException) - [IllegalStateException](https://developer.android.com/reference/java/lang/IllegalStateException) - [IllegalThreadStateException](https://developer.android.com/reference/java/lang/IllegalThreadStateException) - [IndexOutOfBoundsException](https://developer.android.com/reference/java/lang/IndexOutOfBoundsException) - [InstantiationException](https://developer.android.com/reference/java/lang/InstantiationException) - [InterruptedException](https://developer.android.com/reference/java/lang/InterruptedException) - [MatchException](https://developer.android.com/reference/java/lang/MatchException) - [NegativeArraySizeException](https://developer.android.com/reference/java/lang/NegativeArraySizeException) - [NoSuchFieldException](https://developer.android.com/reference/java/lang/NoSuchFieldException) - [NoSuchMethodException](https://developer.android.com/reference/java/lang/NoSuchMethodException) - [NullPointerException](https://developer.android.com/reference/java/lang/NullPointerException) - [NumberFormatException](https://developer.android.com/reference/java/lang/NumberFormatException) - [ReflectiveOperationException](https://developer.android.com/reference/java/lang/ReflectiveOperationException) - [RuntimeException](https://developer.android.com/reference/java/lang/RuntimeException) - [SecurityException](https://developer.android.com/reference/java/lang/SecurityException) - [StringIndexOutOfBoundsException](https://developer.android.com/reference/java/lang/StringIndexOutOfBoundsException) - [TypeNotPresentException](https://developer.android.com/reference/java/lang/TypeNotPresentException) - [UnsupportedOperationException](https://developer.android.com/reference/java/lang/UnsupportedOperationException) - [WrongThreadException](https://developer.android.com/reference/java/lang/WrongThreadException) - ## Errors - [AbstractMethodError](https://developer.android.com/reference/java/lang/AbstractMethodError) - [AssertionError](https://developer.android.com/reference/java/lang/AssertionError) - [BootstrapMethodError](https://developer.android.com/reference/java/lang/BootstrapMethodError) - [ClassCircularityError](https://developer.android.com/reference/java/lang/ClassCircularityError) - [ClassFormatError](https://developer.android.com/reference/java/lang/ClassFormatError) - [Error](https://developer.android.com/reference/java/lang/Error) - [ExceptionInInitializerError](https://developer.android.com/reference/java/lang/ExceptionInInitializerError) - [IllegalAccessError](https://developer.android.com/reference/java/lang/IllegalAccessError) - [IncompatibleClassChangeError](https://developer.android.com/reference/java/lang/IncompatibleClassChangeError) - [InstantiationError](https://developer.android.com/reference/java/lang/InstantiationError) - [InternalError](https://developer.android.com/reference/java/lang/InternalError) - [LinkageError](https://developer.android.com/reference/java/lang/LinkageError) - [NoClassDefFoundError](https://developer.android.com/reference/java/lang/NoClassDefFoundError) - [NoSuchFieldError](https://developer.android.com/reference/java/lang/NoSuchFieldError) - [NoSuchMethodError](https://developer.android.com/reference/java/lang/NoSuchMethodError) - [OutOfMemoryError](https://developer.android.com/reference/java/lang/OutOfMemoryError) - [StackOverflowError](https://developer.android.com/reference/java/lang/StackOverflowError) - [ThreadDeath](https://developer.android.com/reference/java/lang/ThreadDeath) - [UnknownError](https://developer.android.com/reference/java/lang/UnknownError) - [UnsatisfiedLinkError](https://developer.android.com/reference/java/lang/UnsatisfiedLinkError) - [UnsupportedClassVersionError](https://developer.android.com/reference/java/lang/UnsupportedClassVersionError) - [VerifyError](https://developer.android.com/reference/java/lang/VerifyError) - [VirtualMachineError](https://developer.android.com/reference/java/lang/VirtualMachineError)