一个简单的计算选修课程绩点的程序,欢迎大家指点下.

package 选修课程;

/**

*

* @author Administrator

*/

public class Student {    //学生类

Course s=new Course();

String stuName;

double maxGAP,minGAP;

static int stuID;

static int numberCourse;

static  Course[] list =new Course[numberCourse];

int [] stuSecor=new int[numberCourse];

double stuGAP;

public  Student()

{

list=new Course[numberCourse];

for(int i=0;i

list[i]=new Course();

stuSecor=new int[numberCourse];

}

public  int CourseNum(int x)

{

numberCourse=x;

return numberCourse;

}

public String getstuName()

{

return stuName;

}

public double getGAP()

{

return stuGAP;

}

public   static void setCourse( Course[] topic)

{

for(int i=0;i

{

list[i].CourseName=topic[i].CourseName;

list[i].CourseMark=topic[i].CourseMark;

}

}

public void addstudent(String name,int ID,int[]secor)

{

stuName=name;

stuID=ID;

for(int i=0;i

stuSecor[i]=secor[i];

}

public double  getstuGAP()

{

int i=0;

double smark=0,sumGAP=0,summark=0;

for(i=0;i

{

if(stuSecor[i]>=95)

smark=4.5;

else if(stuSecor[i]>=90)

smark=4.0;

else if(stuSecor[i]>=85)

smark=3.5;

else if(stuSecor[i]>=80)

smark=3.0;

else if(stuSecor[i]>=75)

smark=2.5;

else if(stuSecor[i]>=70)

smark=2.0;

else if(stuSecor[i]>=65)

smark=1.5;

else if(stuSecor[i]>=60)

smark=1.0;

else

smark=0;

sumGAP+=smark*list[i].CourseMark;

summark+=list[i].CourseMark;

}

stuGAP=sumGAP/summark;

return stuGAP;

}

public void setswap(Student stu1,Student stu2)

{

String name;

int id;

double GAP;

int[] secor = new int[Student.numberCourse];

name=stu1.stuName;

id=stu1.stuID;

GAP=stu1.stuGAP;

for(int i=0;i

secor=stu1.stuSecor;

stu1.stuName=stu2.stuName;

stu1.stuID=stu2.stuID;

stu1.stuGAP=stu2.stuGAP;

for(int i=0;i

stu1.stuSecor=stu2.stuSecor;

stu2.stuGAP=GAP;

stu2.stuID=id;

stu2.stuName=name;

for(int i=0;i

stu2.stuSecor=secor;

}

public void maxminGAP(Student[] stu)

{

double max,min;

if(stu.length==0)

min=max=-1;

min=max=stu[0].stuGAP;

for(int i=0;i

{

if(max

max=stu[i].stuGAP;

if(min>stu[i].stuGAP)

min=stu[i].stuGAP;

}

maxGAP=max;

minGAP=min;

}

public double getmin()

{

return minGAP;

}

public double getmax()

{

return maxGAP;

}

public void SortGPA( Student[] stu)

{

int i, j, pos;

for(i=0;i

{

for (j = (pos = i); j < stu.length; j++)

if (stu[pos].stuGAP< stu[j].stuGAP)

pos = j;

if (pos != i)

stu[i].setswap( stu[i], stu[pos]);

}

}

}

public class Course {  \\ Course类

String CourseName;

int  CourseMark;

public Course()

{

}

public Course(String Name,int Mark)

{

CourseName=Name;

CourseMark=Mark;

}

public String getCourseName()

{

return CourseName;

}

public int getCourseMark()

{

return CourseMark;

}

}

package 选修课程;

import java.util.*;

/**

*

* @author Administrator

*/

public class Main {

/**

* @param args the command line arguments

*/

public static void main(String[] args) {

Course r=new Course();

Student t=new Student();

int  Num, Mark,Id;

String  Name;

Scanner in=new Scanner(System.in);

System.out.println("请输入学生总人数");

Num=in.nextInt();

System.out.println("请输入选修课程总数");

int k=in.nextInt();

k=t.CourseNum(k);

Student [] stu=new Student[Num];

for(int i=0;i

stu[i]=new Student();

Course []  tp =new Course [k];

int [] score  =new int [k];

for(int i=0;i

{

System.out.println("请输入选修课程名称");

Name=in.next();

System.out.println("请输入选修课程学分");

Mark=in.nextInt();

tp[i]=new Course(Name,Mark);

}

Student.setCourse(tp);

for(int i=0;i

{

System.out.println("请输入学生姓名") ;

Name=in.next();

System.out.println("请输入学生学号");

Id=in.nextInt();

for(int j=0;j

{

System.out.println("请输入学生"+tp[j].getCourseName()+"的成绩");

score[j]=in.nextInt();

}

stu[i].addstudent(Name, Id, score);

t.getstuGAP();

System.out.println("您的GPA值是"+stu[i].getstuGAP());

}

t.maxminGAP(stu);

System.out.println("最大GAP是" + t.getmax()+"最小GAP是"+t.getmin());

t.SortGPA(stu);

for(int i=0;i

System.out.println("从高到低是"+stu[i].getGAP());

}

}

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