File Doc Category Size Date Package
NullPointerException.java API Doc Android 1.5 API 1918 Wed May 06 22:41:04 BST 2009 java.lang

NullPointerException

java.lang.Object
- java.lang.Throwable
  - java.lang.Exception
    - java.lang.RuntimeException

public class NullPointerException extends RuntimeException

Thrown when a program tries to access a field or method of an object or an element of an array when there is no instance or array to use, that is if the object or array points to {@code null}. It also occurs in some other, less obvious circumstances, like a {@code throw e} statement where the {@link Throwable} reference is {@code null}.

since: Android 1.0

Fields Summary
private static final long
serialVersionUID
Constructors Summary
public NullPointerException()
Constructs a new {@code NullPointerException} that includes the current stack trace.
since
Android 1.0
super();
public NullPointerException(String detailMessage)
Constructs a new {@code NullPointerException} with the current stack trace and the specified detail message.
param
detailMessage the detail message for this exception.
since
Android 1.0
super(detailMessage);
Methods Summary