// references/ImmutableInteger.java

// (c)2016 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://mindviewinc.com/Books/OnJava/ for more book information.

// The Integer class cannot be changed

import java.util.*;

public class ImmutableInteger {

public static void main(String[] args) {

List<Integer> v = new ArrayList<>();

for(int i = 0; i < 10; i++)

v.add(new Integer(i));

// But how do you change the int

// inside the Integer?

}

}