OnJava8-Examples/references/ImmutableInteger.java
2015-11-03 12:00:44 -08:00

15 lines
365 B
Java

// references/ImmutableInteger.java
// 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?
}
}
/* Output: (None) */