java多个对象内存图

两个对象的内存图

public class Phone {
    
    
    String yanse;
    int change;
    public void tonghua(String who){
    
               //带参数的
        System.out.println("给"+who+"打电话");
    }
    public void liaotian(){
    
                         //不带参数的
        System.out.println("吃饭了没！！！");
    }
}
public class pho {
    
    
    public static void main(String[] args){
    
    
        Phone one = new Phone();
        System.out.println(one.yanse);
        System.out.println(one.change);
		one.yanse="黄色";
		one.change=5999;
		System.out.println(one.yanse);
        System.out.println(one.change);
        one.liaotian();
        one.tonghua("乔布斯");
				
		Phone two = new Phone();
        System.out.println(two.yanse);
        System.out.println(two.change);
		two.yanse="黄色";
		two.change=5999;
		System.out.println(two.yanse);
        System.out.println(two.change);
        one.liaotian();
        one.tonghua("欧巴");
    }
}

两个引用指向同一对象内存图

对象作为方法的参数

public class Phone{
    
    
         String yanse;
		 int change;
		 
		 public void dianhua(String who){
    
    
		           System.out.println("给"+who+"打电话");
				   }
		public void liaotian(){
    
    
		System.out.println("hihihi");
		}
	}
	
public class Ph{
    
    
    public static void main(String[] args){
    
    
	
         Phone one = new Phone();
		 one.yanse="土豪金";
		 one.change=5999;
		 
		 moth(one);     //这里传的是one对象的地址；
		 }
	public static void moth(Phone pm){
    
     //参数是一个对象，Phone出来的pm；pm存储的是one对象的地址
	     Systrm.out.println(pm.yanse);
		 System.out.pirntln(pm.change);
		 }
	 }

对象作为方法的返回值

pbulic static void main(String[] args){
    
    
    Phone two = getphone();
	System.out.println(two.change);
	System.out.println(two.yanse);
	}
public static Phone getphone(){
    
    
    Phone one = new Phone();
	one.change=8999;
	one.yanse="玫瑰金";
	return one;
	}