手机类练习
public class phone {
String brand;
double price;
String color;
public void call(String who){
System.out.println("给"+who+"打电话");
}
public void sendMessage(){
System.out.println("群发短信");
}
public static void main(String[] args) {
phone phone = new phone();
System.out.println(phone.brand);
System.out.println(phone.price);
System.out.println(phone.color);
System.out.println("===================");
phone.brand = "iQoo";
phone.color = "渐变蓝";
phone.price = 5000;
System.out.println(phone.brand);
System.out.println(phone.price);
System.out.println(phone.color);
phone.call("牛马");
phone.sendMessage();
}
}
一个对象的内存图
原创文章，作者：dweifng，如若转载，请注明出处：https://blog.ytso.com/270822.html