Simple GPA calculator in Java Posted by Samath Last Updated: December 21, 2014 22181

For research purposes and to assist students, the admissions office of your University wants to determine the performance of certain students in any 5 courses. You are asked to calculate your gpa. Your program should accept any 5 course letter grades and 5 course credits for those courses. Each line has one entry. Your program should compute and output your GPA. Format your results to two decimal places.

Solution:

```import java.util.Scanner;
import java.text.DecimalFormat;
public class GpaCalculator {

public static void main(String[] args) {

String lettergrd;
double credit;
double caltimes = 0;
double totalcal = 0;
double totalcredit = 0;
double finalgpa = 0;
final double A = 4.0;
final double AMINUS = 3.67;
final double BPLUS = 3.33;
final double B = 3.0;
final double BMINUS = 2.67;
final double CPLUS = 2.33;
final double C = 2.0;
final double CMINUS = 1.67;
final double D = 1.00;
final double F = 0.0;
DecimalFormat df = new  DecimalFormat("0.##");
Scanner grd = new Scanner(System.in);

for(int i = 0; i < 5; i++)
{

lettergrd = grd.next();

System.out.println("Please enter the course credit: ");
credit = grd.nextDouble();

switch(lettergrd)
{
case "A": caltimes = credit * A;
case "a": caltimes = credit * A;
break;
case "A-": caltimes = credit * AMINUS;
case "a-": caltimes = credit * AMINUS;
break;
case "B+": caltimes = credit * BPLUS;
case "b+": caltimes = credit * BPLUS;
break;
case "B": caltimes = credit * B;
case "b": caltimes = credit * B;
break;
case "B-": caltimes = credit * BMINUS;
case "b-": caltimes = credit * BMINUS;
break;
case "C+": caltimes = credit * CPLUS;
case "c+": caltimes = credit * CPLUS;
break;
case "C": caltimes = credit * C;
case "c": caltimes = credit * C;
break;
case "C-": caltimes = credit * CMINUS;
case "c-": caltimes = credit * CMINUS;
break;
case "D": caltimes = credit * D;
case "d": caltimes = credit * D;
break;
case "F": caltimes = credit * F;
case "f": caltimes = credit * F;
break;

}

totalcredit = totalcredit + credit;
totalcal = totalcal + caltimes;

}

finalgpa = totalcal/totalcredit;
System.out.println("GPA: " + df.format(finalgpa));
}

}
```