老师子类重写父类只要名一样。返回值和参数可以随便自己来的对吧？这样写可以吗返回String类型

/**

 * 李明类

 */

package Demo;

public class MRli {

private String name;

private int age;

private String sax;

public MRli() {

}

public MRli(String name, int age, String sax) {

this.setName(name);

this.setAge(age);

this.setSax(sax);

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public String getSax() {

return sax;

}

public void setSax(String sax) {

this.sax = sax;

}

/**

* 重写 tuString

*/

public String toString() {

String V = "姓名:" + this.getName() + "\n年龄:" + this.getAge() + "\n性别:" + this.getSax();

return V;

}

}

/**

 * 测试类

 */

package Tset;

import Demo.*;

public class TsetLI {

public static void main(String[] args) {

MRli sa = new MRli("李明",18,"男");

System.out.println(sa);

}

}