[code="java"]
public class A
{
public static void main(String... args)
{
int s = 4;
Integer int1 = s;
Integer int2 = s;
System.out.println(int1 == int2);
int ss = 444;
Integer int3 = ss;
Integer int4 = ss;
System.out.println(int3 == int4);
}
}
[/code]
为何第一个为true第二个为false