testovermethod.java

来自「这是一张java应用教程的随书光盘」· Java 代码 · 共 46 行

//父类Person
class Person {
	 String name;
	 int age;
     int getAge() {
		return age;
	    }
	 void setAge(int i){
		age = i;
	    }
     String getName() {
		return name;
	    }
	void setName(String str){
		 name=str;
	   }
	public String getInfo() {
		return "Name: "+ name + "\n" +"age: "+ age;
	   }
    }
//子类Student
 class Student extends Person{
	 String Univ;            //子类添加变量
	 String getUniv() {       //子类添加方法
		return Univ;
	    }
	void setUniv(String str){       //子类添加方法
		 Univ=str;
	     }
	public String getInfo() {      //子类覆盖父类方法
		return  "Name: "+ name + "\nage: "+ age	+ "\nUniversity: "+ Univ;
	     }

   }
public class Testovermethod{
	public static void main(String args[]){
              Student bini = new Student();
              bini.setAge(19);   //调用父类变量和方法
              bini.setName("doudou");
              bini.setUniv("Tshinghua University");
              System.out.println(bini.getInfo());   //调用子类覆盖后方法

             }
    }