package com.sf.day07.extend; public class Cat { private String name; private Integer id; public Cat() { } public Cat(String name, Integer id) { this.name = name; this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public void catchMouse(){ System.out.println("捉老鼠"); } public void eat(){ System.out.println("吃"); } public void sleep(){ System.out.println("睡"); } @Override public String toString() { return "Cat{" + "name='" + name + '\'' + ", id=" + id + '}'; } }