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