The constructor Student(int, String, int, int, int, String) is undefined
package lz;
import java.util.Scanner;
class Student{
int Number;
String Name;
float Eng_score;
float Math_score;
float Comp_score;
float Sum_score;
public Student(){
Number=0;
Name="asdf";
Eng_score=0;
Math_score=0;
Comp_score=0;
Sum_score=0;
}
public Student(int NewNumber,String NewName,float NewEng_score,float NewMath_score,float NewComp_score,float NewSum_score)
{
Number=NewNumber;
Name=NewName;
Eng_score=NewEng_score;
Math_score=NewMath_score;
Comp_score=NewComp_score;
Sum_score=NewSum_score;
}
public int getNumber(){
return Number;
}
public void setNumber(int Number){
this.Number =Number;
}
public String getName(){
return Name;
}
public void setName(String Name){
this.Name=Name;
}
public float getEng_score(){
return Eng_score;
}
public void setEng_score( float Eng_score){
this.Eng_score=Eng_score;
}
public float getMath_score(){
return Math_score;
}
public void setMath_score( float Math_score){
this.Math_score=Math_score;
}
public void setComp_score( float Comp_score){
this.Comp_score=Comp_score;
}
public float getSum_score()
{
return Sum_score;
}
public void setSum_score( float Sum_score)
{
this.Sum_score = Sum_score;
}
public float Sum(){
return(this.Eng_score+this.Math_score+this.Comp_score);
}
public float testScore() { ?
? return(this.Sum_score/3); ? ? ??
}?
public String toString(){
return("學號："+Number+"姓名："+Name+"英語："+Eng_score+"數學："+Math_score+"計算機："+Comp_score+"總分："+Sum_score+"評測成績："+testScore()+"\n");
}
public boolean equals(Object x){
Student a=(Student)x;
if (this.Number==a.getNumber())
return true;
return false;
}
}
class StudentXW extends Student{
String responsibility;
public StudentXW(){
super();
responsibility=" ";
}
public StudentXW(int NewNumber,String NewName,int NewEng_score,int NewMath_score,int NewComp_score,int NewSum_score,String Newresponsibility){
super(NewNumber,NewName,NewEng_score,NewMath_score,NewComp_score,Newresponsibility);
responsibility=Newresponsibility;
}
public String getresponsibility(){
return responsibility;
}
public void setresponsibility(String responsibility){
this.responsibility = responsibility;
}
public float testScore() { ?
? ?return(Sum_score/3+3);?
}
public String toString(){
return("學號："+Number+"姓名："+Name+"英語："+Eng_score+"數學："+Math_score+"計算機："+Comp_score+"總分："+Sum_score+"評測成績："+testScore()+"職位："+responsibility+"\n");
}
}
class StudentBZ extends Student{
String responsibility;
public StudentBZ(){
super();
responsibility=" ";
}
public StudentBZ(int NewNumber,String NewName,float NewEng_score,float NewMath_score,float NewComp_score,float NewSum_score,String Newresponsibility){
super(NewNumber,NewName,NewEng_score,NewMath_score,NewComp_score,Newresponsibility);
responsibility=Newresponsibility;
}
public String getresponsibility(){
return responsibility;
}
public void setresponsibility(String responsibility){
this.responsibility = responsibility;
}
public float testScore() { ?
? ?return(Sum_score/3+5); ? ? ?
}
public String toString(){
return("學號："+Number+"姓名："+Name+"英語："+Eng_score+"數學："+Math_score+"計算機："+Comp_score+"總分："+Sum_score+"評測成績："+testScore()+"職位："+responsibility+"\n");
}
}
public class Show7{
public static void main(String args[]){
Student[] Stu=new Student[3];
Scanner scn= new Scanner(System.in);
System.out.println(Stu.length);
for (int i = 0; i <3; i++) {
System.out.println("\n"+"輸入第"+(i+1)+"個學生的數據");
System.out.print("學號：");
int NewNumber=scn.nextInt();
System.out.print("姓名：");
String NewName=scn.next();
System.out.print("英語：");
float NewEng_score=scn.nextInt();
System.out.print("數學");
float NewMath_score=scn.nextInt();
System.out.print("計算機");
float NewComp_score=scn.nextInt();
System.out.print("職位");
String Newresponsibility=scn.next();
Stu[i]=new Student(NewNumber,NewName,NewEng_score,NewMath_score,NewComp_score,Newresponsibility); ?
}
for(int i=0;i<3;i++){
System.out.print(Stu[i].toString());
}
}
}
2016-12-24
//注意你每個傳的參數的類型 public?Student(int?NewNumber,?String?NewName,?float?NewEng_score,?float?NewMath_score,?float?NewComp_score, float?NewSum_score)?{ Number?=?NewNumber; Name?=?NewName; Eng_score?=?NewEng_score; Math_score?=?NewMath_score; Comp_score?=?NewComp_score; Sum_score?=?NewSum_score; } public?StudentXW(int?NewNumber,?String?NewName,?int?NewEng_score,?int?NewMath_score,?int?NewComp_score, int?NewSum_score,?String?Newresponsibility)?{ //與父類構造方法參數類型的對比，提示：類型需要一一對應 super(NewNumber,?NewName,?NewEng_score,?NewMath_score,?NewComp_score,?Newresponsibility); responsibility?=?Newresponsibility; }2016-12-11
super(NewNumber,NewName,NewEng_score,NewMath_score,NewComp_score,Newresponsibility);
Stu[i]=new Student(NewNumber,NewName,NewEng_score,NewMath_score,NewComp_score,Newresponsibility);?
這兩行顯示
The constructor Student(int, String, int, int, int, String) is undefined
怎么回事??？？、