The class declaration in the inner classes is different, the effect is not the same

1. A declaration in a class, a declaration in a method of a class. An inner class is declared inside a method in a class, and an inner class in its method calls a variable outside the inner class, and the variable must be final

class outter{int x1 = 0;public void print () {final int x1 = 0;class inner{public void Innerprint () {System.out.println (x1+ 1);}}} Class Inner2{public void Inner2print () {System.out.println (x1+ "");}}

　　

The class declaration in the inner classes is different, the effect is not the same