Uncaught Exception In Java

Chapter: Exception Handling Last Updated: 08-06-2017 13:59:10 UTC

Program:

            /* ............... START ............... */
                
public class JavaUncaughtException {
	public static void main(String args[]) {
		int a = 0;
		int b = 100 / a;
	}
}
                /* ............... END ............... */
        

Output

Exception in thread "main" java.lang.ArithmeticException: / by zero
at ExceptionHandling.JavaUncaughtException.main(JavaUncaughtException.java:19) 

Notes:

• If the exceptions are not caught in a try/catch block, then what you often see in practice is Java print the exception stack trace.
• The java.lang.ThreadGroup.uncaughtException() method is called by the Java Virtual Machine when a thread in this thread group stops because of an uncaught exception, and the thread does not have a specific Thread.UncaughtExceptionHandler.
• When an uncaught exception occurs, the JVM does the following:
• It calls a special private method, dispatchUncaughtException(), on the Thread class in which the exception occurs.
• It then terminates the thread in which the exception occurred.

Tags

Uncaught Exception, Java

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