army.java

来自「基础性的JAVA源代码」· Java 代码 · 共 77 行

package exec.day0927;

public class Army {
	private Weapon w[];
	private int count;//当前武器数量
	public Army(int n){
		w = new Weapon[n];
	}
	
	/**
	 * 添加武器
	 * @param wa
	 */
	public void addWeapon(Weapon wa){
		if(w.length==count){
			throw new RuntimeException("武器数量已饱和，不能添加！");
		}
		w[count++] = wa;
	}
	
	public void attackAll(){
		for(int i=0;i<count;i++){
			w[i].attack();
		}
	}
	
	public void moveAll(){
		for(int i=0;i<count;i++){
			if(w[i] instanceof Mobile){
				Mobile m = (Mobile)w[i];
				m.move();
			}
		}
	}
}

interface Assaultable{
	void attack();
}

interface Mobile{
	void move();
}

abstract class Weapon implements Assaultable{
	
}
//Tank,Flighter,MissileTurret
class Tank extends Weapon implements Mobile{
	public void attack(){
		//...
	}
	public void move(){
		//...
	}
}

class Flighter extends Weapon implements Mobile{
	public void attack(){
		//...
	}
	public void move(){
		//...
	}
}
class MissileTurret extends Weapon{
	public void attack(){
		//...
	}
}