public class NullPointerException extends RuntimeException
null
in a
case where an object is required. These include:
null
object.
null
object.
null
as if it were an array.
null
as if it
were an array.
null
as if it were a Throwable
value.
Applications should throw instances of this class to indicate
other illegal uses of the null
object.
Constructor and Description |
---|
NullPointerException()
Constructs a
NullPointerException with no detail message. |
NullPointerException(String s)
Constructs a
NullPointerException with the specified
detail message. |
public NullPointerException()
NullPointerException
with no detail message.public NullPointerException(String s)
NullPointerException
with the specified
detail message.s
- the detail message.Copyright © 2013, Oracle and/or its affiliates. All rights reserved.
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