JAVA 06-2 객체 간 협력

 

학생 클래스 구현

package cooperation;

public class Student {
  public String studentName; 
  public int grade;
  public int money;
  
  public Student(String studentName, int money) {
   this.studentName = studentName;
   this.money = money;
  }
  
  public void takeBus(Bus bus){
    bus.take(1000);
    this.money -= 1000;
  }
  
  public void takeSubway(Subway subway) {
    subway.take(1500);
    this.money -= 1500;
  }
  
  public void showInfo(){
    System.out.println(studentName + "님의 남은 돈은" + money + "입니다");
  }
  
}

버스 클래스 구현

package cooperation;

public class Bus {
  int busNumber;
  int passengerCount;
  int money;
  
 public Bus(int busNumber){
   this.busNumber = busNumber 
 }
 
 public void take(int money) {
   this. money += money;
   passengerCount++;
 }
 
 public vlid showInfo() {
   System.out.println("버스"+busnumber + "번의 승객은" + passengerCount + "명이고, 수입은" + money );
 }

 

버스와 지하철 타기 클래스 구현

package cooperation;

public class TakeTrans {
  public static void main(Stirng[] args) {
    Student studentJames = new Student("James", 5000);
    Student studentTomas = new Student("Tomas", 10000);
    
    Bus bus100 = new Bus(100);
    studentJames.takeBus(bus100);
    studentJames.showInfo();
    bus100.showInfo();
    
    Subway subwayGreen = new Subway("2호선");
    studentTomas.takesubway(subwayGreen);
    studentTomas.showInfo();
    subwayGreen.showInfo();
    
  }
}