Increment a Integer's int value?

Question

How do I increment a Integer\'s value in Java? I know I can get the value with intValue, and I can set it with new Integer(int i).

playerID.intValue()++;
         


        

Answer 1

Java 7 and 8. Increment DOES change the reference, so it references to another Integer object. Look:

@Test
public void incInteger()
{
    Integer i = 5;
    Integer iOrig = i;
    ++i; // Same as i = i + 1;
    Assert.assertEquals(6, i.intValue());
    Assert.assertNotEquals(iOrig, i);
}

Integer by itself is still immutable.