API Overview API Index Package Overview Direct link to this page
JDK 1.6
  java.lang. NullPointerException View Source
Author(s)
unascribed
Since
JDK1.0
Version
1.20, 11/17/05
Serial
Hierarchy
 Object
      Throwable
          Exception
              RuntimeException
                  NullPointerException
Implements
Subclasses
Description
public exception NullPointerException
  Thrown when an application attempts to use null in a case where an object is required.
See also:   
Constructors
public NullPointerException ()
Constructs a NullPointerException with no detail message.
public NullPointerException (String s)
  Constructs a NullPointerException with the specified detail message.
Methods
Hide/Show inherited methods
publicsynchronizednative Throwable fillInStackTrace () [Inherited From Throwable]
  Fills in the execution stack trace.
public Throwable getCause () [Inherited From Throwable]
  Returns the cause of this throwable or null if the cause is nonexistent or unknown.
public String getLocalizedMessage () [Inherited From Throwable]
  Creates a localized description of this throwable.
public String getMessage () [Inherited From Throwable]
  Returns the detail message string of this throwable.
public StackTraceElement getStackTrace () [Inherited From Throwable]
  Provides programmatic access to the stack trace information printed by Throwable.printStackTrace().
publicsynchronized Throwable initCause (Throwable cause) [Inherited From Throwable]
  Initializes the cause of this throwable to the specified value.
public void printStackTrace () [Inherited From Throwable]
  Prints this throwable and its backtrace to the standard error stream.
public void printStackTrace (PrintStream s) [Inherited From Throwable]
  Prints this throwable and its backtrace to the specified print stream.
public void printStackTrace (PrintWriter s) [Inherited From Throwable]
  Prints this throwable and its backtrace to the specified print writer.
public void setStackTrace (StackTraceElement stackTrace) [Inherited From Throwable]
  Sets the stack trace elements that will be returned by Throwable.getStackTrace() and printed by Throwable.printStackTrace() and related methods.
public String toString () [Inherited From Throwable]
  Returns a short description of this throwable.
Fields
Hide/Show inherited fields
pack-privatefinalstatic long serialVersionUID = "-7034897190745766939" [Inherited From RuntimeException]
Nested Classes
Generated By: JavaOnTracks Doclet 0.1.4     ©Thibaut Colar