给学生成绩java代码 java成绩单代码
急！急1急！用java编写简单的学生成绩录入程序
这里有一个类
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实现学生学号，数学，语文，英语成绩录入
并且计算平均成绩，按照平均成绩高低输出信息
你可以改改！
//实现简单的学生信息输入输出和初步的成绩排序
public
class
student
{
private
int
id;
//学号
private
int
mathscore;
//数学成绩
private
int
chinscore;
//语文成绩
private
int
forescore;
//外语成绩
public
student()
{
id
=
0;
mathscore
=
0;
chinscore
=
0;
forescore
=
0;
}
public
student(int
newid,
int
newmathscore,
int
newchinsvore,
int
newforescore)
{
id
=
newid;
mathscore
=
newmathscore;
chinscore
=
newchinsvore;
forescore
=
newforescore;
}
public
double
getaveragescore()
{
//求平均成绩
double
averagescore
=
((double)
mathscore
+
chinscore
+
forescore)
/
3;
return
averagescore;
}
public
void
output(student
student)
{
//输出对象的内容
system.out.println("
"
+
student.id
+
"
"
+
student.mathscore
+
"
"
+
student.chinscore
+
"
"
+
student.forescore
+
"
"
+
student.getaveragescore());
}
public
int
max(student
a[],
int
n)
{
//student类对象数组的前n项中的成绩最大值的索引
int
position
=
0;
for
(int
i
=
1;
i
n;
i++)
{
if
(a[i].getaveragescore()
a[position].getaveragescore())
{
//比较平均成绩
position
=
i;
}
}
return
position;
}
public
void
selectsort(student
a[])
{
//student类对象数组的选择排序
for
(int
n
=
a.length;
n
1;
n--)
{
int
i
=
max(a,
n);
student
temp
=
a[i];
a[i]
=
a[n
-
1];
a[n
-
1]
=
temp;
}
}
}
java ！ 学生成绩编程
public static void printResult(){
Scanner input =new Scanner(System.in);
System.out.print("Enter student's name:");
String name=input.next();
System.out.print("Enter student's faculty:");
String faculty=input.next();
System.out.print("Enter student's year:");
String year=input.next();
System.out.print("Enter student's grades:");
Double average=0.0;
String grade=input.next();
//保存各等级的成绩数量
Integer[] results=new Integer[]{0,0,0,0,0};
if(grade!=null||grade!=""){
//保存输入的成绩
String[] grades=grade.split(",");
Double sum=0.0;
for(int i=0;igrades.length;i++){
//将字符串转double类型
Double dg=Double.parseDouble(grades[i]);
sum+=dg;
if(dg50){
//F
results[0]++;
}else if(50=dg dg=64){
//P
results[1]++;
}else if(65=dg dg=74){
//C
results[2]++;
}else if(75=dg dg=84){
//D
results[3]++;
}else if(85=dg dg=100){
//HD
results[4]++;
}
}
average=sum/grades.length;
}
System.out.println(name+" - "+faculty+" - "+year);
System.out.println("WAM:"+average);
for(int i=0;iresults.length;i++){
switch(i){
case 0:System.out.println(results[i]+" x F");break;
case 1:System.out.println(results[i]+" x P");break;
case 2:System.out.println(results[i]+" x C");break;
case 3:System.out.println(results[i]+" x D");break;
case 4:System.out.println(results[i]+" x HD");break;
}
}
}
如何用Java实现“学生成绩输入”问题？
import java.util.Scanner;\x0d\x0a public class Student{\x0d\x0a public static void main(String[] args){\x0d\x0a Scanner sc = new Scanner(System.in);\x0d\x0a System.out.println("请输入学生的人数....");\x0d\x0a int num = sc.nextInt();\x0d\x0a int[] arr = new int[num];\x0d\x0a double[] chengji_arr = new double[num]; //存放成绩的\x0d\x0a String[] String_arr = new String[num]; //存放姓名的\x0d\x0a String chengjis = "";\x0d\x0a String names = "";\x0d\x0a for(int i = 0; i
回答于 2022-11-16
设计一个给班级学生成绩排序的java程序，具体要求如下
按照题目要求编写的Java程序如下(注意 以下程序全部放在Main.java文件中)
class student{
String name;
int score;
public student(String name,int score){
this.name=name;
this.score=score;
}
String studentInfo(){
return "name="+this.name+",score="+this.score;
}
}
public class Main{
public static void main(String[] args){
student sty[]=new student[5];
sty[0]=new student("zhangsan",67);
sty[1]=new student("lisi",75);
sty[2]=new student("wangwu",57);
sty[3]=new student("zhaoliu",88);
sty[4]=new student("ruanqi",93);
student stu[]=new student[5];
for(int i=0;isty.length;i++){
stu[i]=sty[i];
}
for(int i=0;istu.length-1;i++){
for(int j=0;jstu.length-i-1;j++){
if(stu[j].scorestu[j+1].score){
student temp=stu[j];
stu[j]=stu[j+1];
stu[j+1]=temp;
}
}
}
for(int i=0;istu.length;i++){
System.out.println(stu[i].studentInfo());
}
}
}
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