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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