How does the “final” keyword in Java work? (I can still modify an object.)

Question

In Java we use final keyword with variables to specify its values are not to be changed. But I see that you can change the value in the constructor / methods of

Answer 1

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There is another user case where final keyword can be used i.e. in a method argument:

public void showCaseFinalArgumentVariable(final int someFinalInt){

   someFinalInt = 9; // won't compile as the argument is final

}

Can be used for variable which should not be changed.