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javaclassintegerint

Increment a Integer's int value?

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()++;

does not seem to work.

Note: PlayerID is a Integer that has been created with:

Integer playerID = new Integer(1);
Solution

  • Integer objects are immutable, so you cannot modify the value once they have been created. You will need to create a new Integer and replace the existing one.

    playerID = new Integer(playerID.intValue() + 1);