什么是类

什么是类

class Person{
    //属性，或者变量
    String name;
    boolean isMarried;
    //构造器
    public Person(){};
    public Person(String n,boolean im){
        name = n; isMarried = im;
    }
    //方法，或者函数
    public void walk(){
        System.out.println("人走路...");
    }
    public String display(){
        return "名字是："+name+",Married:"+isMarried;
    }
    //代码块
    {
        name = "Hanguo";
        age = 19;
        isMarried = true;
    }
    //内部类
    class pet(){
        String name;
        float weight;
    }
}