package com.lan;
import java.util.Scanner;
/*public void test(){
Student s_1=new Student("雪糕",21,"女","學校");
s_1.chengjiluru();
s_1.pingjun();
}
*/
class Person{
private String name;
private int age;
private String sex;
public Person(){
}
public Person (String name,int age,String sex){
this.name=name;
this.age=age;
this.sex=sex;
}
}
class Student extends Person{
private double[] score=new double[4];
public Student(String name,int age,String sex,String school){
super(name,age,sex);
}
public void chengjiluru(){
Scanner scan=new Scanner(System.in);
System.out.println("請分別輸入成績: name、age、sex、school");
for(int i=0;i<4;i++){
score[i]=scan.nextDouble();
}
}
public void pingjun(){
double sum=0;
for(int i=0;i<4;i++){
sum+=score[i];
}
double jun=sum/4;
System.out.println("平均成績為：" +jun);
}}
public class xuegao {
public static void main(String[] args) {
}
}
uj5u.com熱心網友回復：
程式是從共有類的main()方法中進入執行的，你的main()方法中什么都沒寫，肯定沒有任何結果輸出啊uj5u.com熱心網友回復：
一樓說得對，你要實作什么功能，至少也需要在main方法中new一個物件，用"物件."的方式呼叫方法啊。轉載請註明出處，本文鏈接：https://www.uj5u.com/houduan/130164.html
標籤：Java EE