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NullPointerException
open class NullPointerException : RuntimeException
Thrown when an application attempts to use null
in a case where an object is required. These include:
- Calling the instance method of a
null
object.
- Accessing or modifying the field of a
null
object.
- Taking the length of
null
as if it were an array.
- Accessing or modifying the slots of
null
as if it were an array.
- Throwing
null
as if it were a Throwable
value.
Applications should throw instances of this class to indicate other illegal uses of the null
object. NullPointerException
objects may be constructed by the virtual machine as if stack trace was not writable.
Summary
Public constructors |
Constructs a NullPointerException with no detail message.
|
Constructs a NullPointerException with the specified detail message.
|
Public constructors
NullPointerException
NullPointerException()
Constructs a NullPointerException
with no detail message.
NullPointerException
NullPointerException(s: String!)
Constructs a NullPointerException
with the specified detail message.
Parameters |
s |
String!: the detail message. |
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Last updated 2021-02-18 UTC.
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"id": "missingTheInformationINeed",
"label":"Missing the information I need"
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{"lastModified": "Last updated 2021-02-18 UTC."}
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