Java Thread setDefaultUncaughtExceptionHandler()() Method with Examples

by Online Tutorials Library July 22, 2022

Java Thread setDefaultUncaughtExceptionHandler() method

The setDefaultUncaughtExceptionHandler() method of thread class sets the default handler invoked when a thread abruptly terminates due to an uncaught exception, and no other handler has been defined for that thread.

Syntax

  public static void setDefaultUncaughtExceptionHandler(Thread.UncaughtExceptionHandler eh)  

Parameter

eh: It is the object which is used as the default uncaught exception handler.

Return

This method does not return any value.

Exception

SecurityException: This exception throws if a security manager is present and it denies RuntimePermission.

Example

  public class JavaSetDefaultExceptioneExp implements Runnable   {      public void run()       {        throw new RuntimeException();      }      public static void main(String[] args)       {          Thread thread = new Thread(new JavaSetDefaultExceptioneExp());          thread.setDefaultUncaughtExceptionHandler(new Thread.          UncaughtExceptionHandler()           {              public void uncaughtException(Thread thread, Throwable e)               {                  System.out.println(“Exception caught: ” + e);              }          });          // call run() function          thread.start();     }  }  

Test it Now

Output:

Exception caught: java.lang.RuntimeException

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