교통정보 만들기 (간단히)

package com.trans;


public class Transport {
	
	protected String name;
	protected int speed;
	protected int energy;
	//protected boolean swim;
	
	public String getName(){
		return name;
	}
	public int getSpeed(){
		return speed;
	}
	public int getEnergy(){
		return energy;
	}
	public void consumGas(){
		energy -= 10;
	}
}

package com.trans;

public class TransportMain {
	public static void main(String[] args){
		Ship s = new Ship("배",25,50,true);
		s.consumGas();
		Air a = new Air("비행기",50,100,true);
		a.consumGas();
		System.out.println("==================================");
		System.out.println("이름\t속도\t연료\t비고");
		System.out.println("==================================");

		System.out.print(s.getName()+"\t");
		System.out.print(s.getSpeed()+"\t");
		System.out.print(s.getEnergy()+"\t");
		System.out.print((s.getSwim()?"항해" : "정박")+"\n");
		
		
		System.out.print(a.getName()+"\t");
		System.out.print(a.getSpeed()+"\t");
		System.out.print(a.getEnergy()+"\t");
		System.out.print((a.getFly()?"비행" : "착륙")+"\n");
		
		
		
	}

}

package com.trans;

class Ship extends Transport{
	private boolean swim=true;
	public void consumGas(){//메소드 오버라이딩으로 재정의
		energy -= 25;
	}
	public Ship(String name,int speed,int energy,boolean swim){
		this.name=name;
		this.speed=speed;
		this.energy=energy;
			
	}
	public boolean getSwim(){
		return swim;
	}
}

package com.trans;

class Air extends Transport{
	public void consumGas(){
		energy -= 50;
	}
	private boolean fly=true;
	public Air(String name,int speed,int energy, boolean fly){
		this.name=name;
		this.speed=speed;
		this.energy=energy;
	}
	public boolean getFly(){
		return fly;
	}
}