Grading system - Page 2

[JamesCherrill]

At last!
You have a switch with cases for 1,2,3,4 and 5. You enter 70, which is not 1,2,3,4 or 5, so it executes the default. That's how switch is supposed to work.

[gh.fuz]

OK so apart from IF else ... statement cant any other condition be used?

So how am I suppose to use switch in this case..
thats what I want to do

[JamesCherrill]

No. If you want to test for numbers being in particular ranges you need if/elseif/else. Switch only works for specific values, not for ranges.

[gh.fuz]

ok then I'll need to use that instead

thanks a lot for your guide
am still learning so kindly take it easy with me

appreciated
regarda

[stultuske]

or, as suggested earlier:

switch(score){
case 60:
case 61:
case ...
case 69: print statement; break; // the above will execute everything until the first break (this one) they encounter
...
}

[jwenting]

or more likely, you're going to want to have a method to determine the grade based on the score. A switch would be rather impractical...
Something like

if (score < 11) { 
  result = "A";
} else if (score < 21) {
  result = "B";
} else // ... etc ...

would be much more efficient.

[JamesCherrill]

... or, while we're having fun...
for the simplest possible code and easiest maintenance, build a TreeMap with the upper bound of each range as key and the grade as value, then use ceilingEntry, eg

     TreeMap<Integer, String> map = new TreeMap<>();
     map.put(10,"A");
     map.put(20,"B");
     map.put(30,"C");

    int score = 15;

    String grade = map.ceilingEntry(score).getValue();

    System.out.println(score + " = " + grade);

[scortip]

package system;
import java.util.Scanner;

public class grade {
    public static void main(String[] args) {

        int grade;
        int fees;
        int examscore;
        int assessment;

        //take inputs from keyboard

        Scanner keyboard = new Scanner(System.in);

        System.out.print("Enter exam score: ");
        examscore = keyboard.nextInt();

        System.out.print("Enter class score: ");
        assessment = keyboard.nextInt();

        System.out.print("Enter fees: ");
        fees = keyboard.nextInt();


        System.out.println("\n\n***************************\n");
        grade = examscore + assessment;
        System.out.println("Total score: " + grade);

        if(examscore >= 25) {
            System.out.println("Passed exams");
        } else {
            System.out.println("Failed exams");
        }

        if(assessment >= 15) {
            System.out.println("Passed assessment");
        } else {
            System.out.println("Failed assessement");
        }

        if(fees >= 100) {
            System.out.println("Fees paid in full");
        } else {
            System.out.println("You owe fees");
        }


        if ( examscore >= 25 &&  assessment >= 15) {
            System.out.println("Certificate allowed ");
        } else if ((examscore == 25 && assessment == 14) || (examscore == 24 && assessment == 15)) {
            grade = examscore + assessment;
            System.out.println("Please you're condoned");
        }else {
            System.out.println("Please you have failed ");
        }

        if (((examscore >= 25 && assessment >= 15) || (examscore == 25 && assessment == 14) || (examscore == 24 && assessment == 15))  &&  fees == 100 ){
            System.out.println("Please issue a certificate ");
        } else{
            System.out.println("You are repeated ");
        }
    }
}

[JamesCherrill]

Do you have a question relating to that code?