equals vs ==

[meena latha]

I guess that, if the equals() test returns false, x and y can't possibly refer to the same object so x==y returns false.

If i am right then why in the following program the output turnsout to be "EQ".

Can anybody explain me.

1 public void testC(char ch) {
2 Integer ss = new Integer( ch );
3 Character cc = new Character( ch ) ;
4 if( ss.equals( cc )) System.out.println("equals");
5 if( ss.intValue() == cc.charValue() ){
6 System.out.println("EQ");
7 }
8 }

I know that the equals test fails when the objects are of different types

[Nicholas Cheung]

For object comparsion, == always return false if they are not the same object as the memory addresses differ. However, as you are now comparing primitive types (one is int and the other is char, and char will be promoted to int), == only compares the values of the 2 objects, instead of the memory address, and thus, it returns true.

Nick

[navneet shrivastava]

Nicholas is straightforwardly right.
intValue() & charValue() returns primitive datatype.

thanks