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Example program for Null Pointer Exception - Java

Posted Date: Total Responses: 0 Posted By: Annapurna Member Level: Gold Points/Cash: 2

public class TestRef {

public TestRef () {
System.out.println("tr");
return ;
}

public void print () {
System.out.println ("Instance") ;
}

public static void sprint () {
System.out.println ("Class") ;
}

public static void main(String arfs [ ]) {
System.out.println("1");
TestRef t1 = null ;
System.out.println("2");
TestRef t2 = new TestRef() ;
System.out.println("3");
t1.sprint() ; //this wont throw any null pointer exception because sprint() is static.
System.out.println("4");
t1.print() ; //this will throw null pointer exception
System.out.println("5");
t2.sprint() ;
System.out.println("6");
t2.print() ;
}
}

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