Java对象内存分析

public class Pet {
    public String name;
    public int age;
    
    public void shout(){
        System.out.println("叫了一声");
    }
    
    /*
    public static void main(String[] args){
        Pet dog = new Pet();
        dog.name = "旺财";
        dog.age = 3;
        dog.shout();
        
        Pet cat = new Pet();
        cat.name = "嗷呜";
        cat.age = 1;
        cat.shout();
    }
    */
}