!!!的位置,this 为什么不是map?

Question

public class ThisTest {

    public static void main(String[] args) {
        ThisTest thisTest = new ThisTest();
        thisTest.test1();
    }



    public void test1(){
        // this=thisTest
        System.out.println(this);

        HashMap<Object, Object> map = new HashMap<>();
        //!!!  this  = thisTest 
        map.put(this,"hello");

        ThisTest thisTest2 = new ThisTest();
        thisTest2.print();
    }

    public void print(){
        // this=thisTest2
        System.out.println(this);
    }
}

Answer 1

this是类指针啊，代表当前类ThisTest，this指针被隐含地声明为: X *const this,这意味着不能给this 指针赋值