5月16日三个作业
作业1：
package MyPackage;
class book {
private String name;
private double price;
public book(String name,double price){
this.name=name;
this.price=price;
}
public void setName(String name){
this.name=name;;
}
public void setPrice(double price){
this.price=price;;
}
public String getName(){
return name;
}
public double getPrice(){
return price;
}
public String toString(){
return "name="+name+"\nprice="+price;
}
}
class Textbook2{
public static void main (String[] args) {
book book1=new book("Prison Break",500);
book1.setName("Prison Break");
System.out.println(book1.getName());
System.out.println(book1.toString());
}
}
作业2：
abstract class Person {
abstract void display();
abstract void display1();
}
class Student extends Person{
String name;
int number;
int score;
public void display(){
name="Barbelo";
number=1010;
score=100;
}
public void display1(){
System.out.print("学生姓名："+name+"\n学号："+number+"\n成绩："+score);
}
}
class TestStudent{
public static void main (String[] args) {
Person a=new Student();
a.display();
a.display1();
}
}
作业3：
interface Person {
abstract void display();
abstract void display1();
}
class Teacher implements Person{
String name;
String project;
int money;
public void display(){
name="Barbelo";
project="Math";
money=3000;
}
public void display1(){
System.out.print("教师姓名："+name+"\n课程："+project+"\n工资："+money);
}
}
class TestStudent{
public static void main (String[] args) {
Person a=new Teacher();
a.display();
a.display1();
}
}
