Class java.lang.NullPointerException 
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Class java.lang.NullPointerException 

java.lang.Object
   |
   +----java.lang.Throwable
           |
           +----java.lang.Exception
                   |
                   +----java.lang.RuntimeException
                           |
                           +----java.lang.NullPointerException
public class NullPointerException
extends RuntimeException
Signals the illegal use of a null pointer.

Constructor Index

o NullPointerException()
Constructs a NullPointerException with no detail message.
o NullPointerException(String)
Constructs a NullPointerException with the specified detail message.

Constructors

o NullPointerException 
  public NullPointerException()
Constructs a NullPointerException with no detail message. A detail message is a String that describes this particular exception.
o NullPointerException 
  public NullPointerException(String s)
Constructs a NullPointerException with the specified detail message. A detail message is a String that describes this particular exception.
Parameters:
s - the detail message 
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