Java by API/java.lang/NullPointerException

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new NullPointerException(String name)

   <source lang="java">

/*

* Output:
* 
* recaught: java.lang.NullPointerException: demo 
*  
*/

public class MainClass {

 public static void main(String args[]) {
   try {
     throw new NullPointerException("demo");
   } catch (NullPointerException e) {
     System.out.println("recaught: " + e);
   }
 }

}

      </source>