package com.qst;
public class Student {
String id;
String name;
double chinese;
double math;
double english;
double Total;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getChinese() {
return chinese;
}
public void setChinese(double chinese) {
this.chinese = chinese;
}
public double getMath() {
return math;
}
public void setMath(double math) {
this.math = math;
}
public double getEnglish() {
return english;
}
public void setEnglish(double english) {
this.english = english;
}
public double getTotal() {
return Total;
}
public void setTotal() {
Total = chinese+math+english;
}
public Student(){
}
public Student(String id,String name,double chinese,double math,double english ){
this.id=id;
this.name=name;
this.chinese =chinese;
this.math=math;
this.english=english;
}
public void display(){
System.out.println("学号："+this.id);
System.out.println("姓名："+this.name);
System.out.println("语文成绩："+this.chinese);
System.out.println("数学成绩："+this.math);
System.out.println("英语成绩："+this.english);
System.out.println("总成绩："+(this.chinese+this.math+this.english ));//为什么用Total结果都是0.0
}
public String toString(){
return id+","+name+","+chinese+","+math+","+english+","+(chinese+math+english);
}
}
请问：再输入班级许多同学的信息后怎么样让Total输出三门课的总成绩，而不是一直是0？谢谢谢谢
