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The system is able to find grade for each course based on final marks, calculate GPA, Calculate CGPA.

Methods (menu);

i. Input matric_number, name, coursecode, credithours, semester, final marks for each subject. You may use text file ii. Calculate GPA and CGPA for each student. iii. Search a student record iv. Print Report for all students order by CGPA ascending

Any way to implement linked list?

import java.util.Scanner;
import java.util.Date;
import java.util.InputMismatchException;

public class Student {
private String name,Grade,matricNumber,courseCode;
private int creditHours,semester;
private Date dateCreated=new Date();
private double finalMarks;

Student(String name,int creditHours,int semester,String matricNumber,String courseCode,double finalMarks){
    this.name=name;
    this.creditHours=creditHours;
    this.matricNumber=matricNumber;
    this.finalMarks=finalMarks;
    this.courseCode=courseCode;
    this.semester=semester;
}
void setfinalMarks(double finalMarks){
    this.finalMarks=finalMarks;
}
double getfinalMarks(){
    return finalMarks;
}
void setmatricNumber(String matricNumber){
    this.matricNumber=matricNumber;
}
String getmatricNumber(){
    return matricNumber;
}
void setcourseCode(String courseCode){
    this.courseCode=courseCode;
}
String getcourseCode(){
    return courseCode;
}
void setcreditHours(int creditHours){
    this.creditHours=creditHours;
}
int getcreditHours(){
    return creditHours;
}
void setsemester(int semester){
    this.semester=semester;
}
int getsemester(){
    return semester;
}
double getPoint(){
    return creditHours*finalMarks;
}
void setName(String name){
    this.name=name;
}
String getName(){
    return name;
}
void setGrade(String Grade){
    this.Grade=Grade;
}
String getGrade(){
    return Grade;
}
Date dateCreated(){
    return dateCreated;
}}

class StudentGrade{
public static void main(String[] args) {
       String name,matricNumber=null,courseCode=null,Grade=null;
        boolean valid;
        double point=0;
        int creditHours = 0;
        int semester=0;

        boolean continueInput = false;
        double finalMarks=0;
        Scanner input=new Scanner(System.in);
         int i=0;

            System.out.println("Please enter student's name:");
             name=input.next();

         int y=0;

         valid=true;

                input.nextLine();

                System.out.println("Please enter matric number:");
                 matricNumber = input.nextLine();
               do{
                   continueInput = false;
                try{  
                 System.out.println("Please enter semester:");
                 semester = input.nextInt();}
          catch(InputMismatchException ex){
                System.out.println("Invalid input.Please try again.");

                continueInput=true;
                input.nextLine();
            } 

       }
         while (continueInput);

            input.nextLine();
                 System.out.println("Please enter course code:");
                 courseCode = input.nextLine();



       do{
                System.out.println("Please enter creditHour(1,2,3):");
                 creditHours = input.nextInt();
                while(creditHours<1||creditHours>3){
                System.out.println("Please enter credit Hour again(1,2,3):"); 
                creditHours = input.nextInt();
                } 

                System.out.println("Please enter finalMarks:");
                 finalMarks = input.nextDouble(); 


                 if(finalMarks>=80&&finalMarks<=100){
            Grade="A"; 
        }
        else if(finalMarks>=70&&finalMarks<=79){
            Grade="A-";
        }
        else if(finalMarks>=70&&finalMarks<=74){
           Grade="B+";
        }
        else if(finalMarks>=65&&finalMarks<=69){
            Grade="B";
        }
        else if(finalMarks>=60&&finalMarks<=64){
           Grade="B-";
        }
        else if(finalMarks>=55&&finalMarks<=59){
            Grade="C+";
        }
        else if(finalMarks>=50&&finalMarks<=54){
           Grade="C";
        }
        else if(finalMarks>=45&&finalMarks<=49){
            Grade="C-";
        }
        else if(finalMarks>=40&&finalMarks<=44){
           Grade="D";
        }
        else if(finalMarks>=30&&finalMarks<=39){
            Grade="E";
        }
        else {
            Grade="F";
        }

        switch(Grade){

            case "A":
                point=4.00*creditHours;
                break;

                case "A-":
                 point=3.67*creditHours;
                break;

               case "B+":
                point=3.33*creditHours;
                break;
                   case "B":
                point=3.00*creditHours;
                break;
                       case "B-":
                point=2.67*creditHours;
                break;
                 case "C+":
                point=2.33*creditHours;
                break;
                     case "C":
                 point=2.00*creditHours;
                break;
                         case "C-":
                 point=1.67*creditHours;
                break;
                     case "D":
                 point=1.33*creditHours;
                break;
                         case "E":
                point=1.00*creditHours;
                break;
                             case "F":
                point=0.00*creditHours;
                break;

        }

             int x=0;


       Student people1=new Student(name,creditHours,semester,matricNumber,courseCode,finalMarks);

       System.out.println("Student's name: "+people1.getName()+"\nMatric number: "+people1.getmatricNumber()+"\nSemester: "+people1.getsemester()+"\nCourse Code: "+people1.getcourseCode()+"\nCredit Hours:"+people1.getcreditHours()+"\nFinal Marks: "+people1.getfinalMarks()+"\nPoint:"+point+"\nGrade:"+Grade+"");
       System.out.println("The date created"+people1.dateCreated());

       do{    
           if(continueInput == false){
               System.out.println("Chose 1 to continues,chose 2 to exit the system");
                x = input.nextInt();
                input.nextLine();
               if(x==1){
                   System.out.println("System will be continues.");
                   x++;
               }
               else if(x==2){
                   System.out.println("System exit.");
                   System.exit(x);//System exit
               }
               else{
                   System.out.println("Invalid input,please retry.");
                   input.nextLine();
               }
           }
           }while(x==1);
      }while(continueInput);

    }
}

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Last Post by stultuske
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