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NullPointerException.javaAPI DocphoneME MR2 API (J2ME)2248Wed May 02 17:59:54 BST 2007java.lang

NullPointerException

public class NullPointerException extends 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.

version
1.15, 12/04/99 (CLDC 1.0, Spring 2000)
since
JDK1.0

Fields Summary
Constructors Summary
public NullPointerException()
Constructs a NullPointerException with no detail message.

    super();
    
public NullPointerException(String s)
Constructs a NullPointerException with the specified detail message.

param
s the detail message.

    super(s);
    
Methods Summary