一个程序说明java中this关键字

/* * To change this template, choose Tools | Templates * and open the template in the editor. */package arthur.com.shipin;/** *测试this * @author Arthur */public class ThisTest {    //对象的名字    private String name;    ThisTest(){            }        ThisTest(String name){        this.name = name;    }    /**     * 打印当前对象(的名字)     */    public void printThis(){        System.out.println(this);    }          /**     * 重写toString 返回对象名     * @return name     */    @Override    public String toString(){        return name;    }        public static void main(String args[]){        //此时当前对象this指的是tt1        ThisTest tt1 = new ThisTest("tt1");        System.out.println(tt1);              tt1.printThis();                System.out.println();                 //此时当前对象this指的是tt2        ThisTest tt2 = new ThisTest("tt2");        System.out.println(tt2);        tt2.printThis();    }    }