一對一關係，對象簡單實現

一對一關係，對象簡單實現

package no1;

public class test6 {
	public static void main(String[] args) {
		Hero hero = new Hero("劉備",300);
		Weapon weapon = new Weapon("雙股劍",3);
		
		//把兩個對象關聯起來
		hero.setWeapon(weapon);
		weapon.setHero(hero);
		
		//通過英雄來獲取他的信息
		String name = hero.getName();
		int age = hero.getAge();
		Weapon w = hero.getWeapon();
		System.out.println("我是"+name+",我"+age+"歲，我的武器是:"+w.getName()+",排行"+w.getGrade()+"名！來戰吧！");
	}
}
//英雄類
class Hero{
	private String name;
	private int age;
	private Weapon weapon;  //一對一關係
	public void setWeapon(Weapon weapon) {
		this.weapon = weapon;
	}
	public Weapon getWeapon() {
		return weapon;
	}
	public Hero(){
		
	}
	public Hero(String name,int age) {
		this.name = name ;
		this.age = age;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getName(){
		return name;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public int getAge() {
		return age;
	}
}
//兵器類
class Weapon{
	private String name;
	private int grade;
	private Hero hero;
	public void setHero(Hero hero) {
		this.hero = hero;
	}
	public Hero getHero() {
		return hero;
	}
	public Weapon() {
		
	}
	public Weapon(String name, int grade) {
		this.name = name;
		this.grade = grade;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getName() {
		return name;
	}
	public void setGrade(int grade) {
		this.grade = grade;
	}
	public int getGrade() {
		return grade;
	}
}

運行結果：