java中Integer和int的区别

亲看这里

例子：

 public class Test {

     public static void main(String[] args) {

         Integer i = new Integer(128);
         Integer i2 = 128;

         System.out.println(i == i2);

         Integer i3 = new Integer(127);
         Integer i4 = 127;
         System.out.println(i3 == i4);

         Integer i5 = 128;
         Integer i6 = 128;
         System.out.println(i5 == i6);

         Integer i7 = 127;
         Integer i8 = 127;
         System.out.println(i7 == i8);
     }
 }

输出的结果为：

false
false
false
true