為什么我的輸出會是四行?
package yi.bao.com;
public class Telphone {
//屬性(成員變量)有什么
float screen;
float cpu;
float mem;
int var;
//方法 干什么
void call(){
System.out.println("var"+var);
System.out.println("screen:"+screen+"cpu:"+cpu+"mem"+mem+"Telphone有打電話的功能");
}
void sendMessage(){
System.out.println("var"+var);
System.out.println("screen:"+screen+"cpu:"+cpu+"mem"+mem+"Telphone有發短信的功能");
}
}
package yi.bao.com;
public class InitailTelphone {
public static void main(String[] args) {
// TODO Auto-generated method stub
// 類名 對象名 = new 類名
Telphone phone = new Telphone();
//對象方法
phone.sendMessage();
phone.call();
//給實例變量賦值
phone.screen = 5.0f;
phone.cpu = 1.4f;
phone.mem = 2.0f;
//調用對象方法
phone.call();
phone.sendMessage();
}
}
2016-08-17
八個呀。
var0
screen:0.0cpu:0.0mem0.0Telphone有發短信的功能
var0
screen:0.0cpu:0.0mem0.0Telphone有打電話的功能
var0
screen:5.0cpu:1.4mem2.0Telphone有打電話的功能
var0
screen:5.0cpu:1.4mem2.0Telphone有發短信的功能