为什么我的输出会是四行？

package yi.bao.com;

public class Telphone {

//属性（成员变量）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有打电话的功能");

}

void sendMessage(){

System.out.println("var"+var);

System.out.println("screen:"+screen+"cpu:"+cpu+"mem"+mem+"Telphone有发短信的功能");

}

}

package yi.bao.com;

public class InitailTelphone {

public static void main(String[] args) {

// TODO Auto-generated method stub

// 类名 对象名 = new 类名

Telphone phone = new Telphone();

//对象方法

phone.sendMessage();

phone.call();

//给实例变量赋值

phone.screen = 5.0f;

phone.cpu = 1.4f;

phone.mem = 2.0f;

//调用对象方法

phone.call();

phone.sendMessage();

}

}