Question

Write an application that displays a series of at least five student ID numbers (that you have stored in an array) and asks the user to enter a numeric test score for the student. Create a ScoreException class, and throw a ScoreException for the class if the user does not enter a valid score (less than or equal to 100). Catch the ScoreException, display the message Score over 100, and then store a 0 for the student’s score. At the end of the application, display all the student IDs and scores.

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public class ScoreException extends Exception {
public ScoreException(String s) {
}
}
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import java.util.*;
public class TestScore {
public static void main(String args[]) throws Exception {
Scanner input = new Scanner(System.in);
int[] ids = {1234, 2345, 3456, 4567, 5678};
int[] scores = {0, 0, 0, 0, 0};
String scoreString = new String();
final int HIGHLIMIT = 100;
String inString, outString = "";
for (int x = 0; x < ids.length; ++x) {
System.out.println("Enter score for student id number: " + ids[x]);
inString = input.next();
scores[x] = Integer.parseInt(inString);
// Write your code here
}
for (int x = 0; x < ids.length; ++x)
outString = outString + "ID #" + ids[x] + " Score " +
scores[x] + "\n";
System.out.println(outString);
}
}

Answer 1

ScoreException

public class ScoreException extends Exception {
    public ScoreException(String s) {
        // calling super class with message
        super(s);
    }
}

TestScore.java

import java.util.*;

public class TestScore {
    public static void main(String args[]) {
        Scanner input = new Scanner(System.in);
        int[] ids = {1234, 2345, 3456, 4567, 5678};
        int[] scores = {0, 0, 0, 0, 0};
        final int HIGHLIMIT = 100;
        for (int x = 0; x < ids.length; x++) {
            System.out.println("Enter score for student id number: " + ids[x]);
            // directly scanning int variable
            int temp = input.nextInt();
            try {
                // comparing score for outer bond and throwing score exception
                if (temp < 0)
                    throw new ScoreException("Score below 0");
                if (temp > HIGHLIMIT)
                    throw new ScoreException("Score over 100");
            } catch (ScoreException e) {
                System.err.println(e.getMessage());
                // resetting to 0 if less than o or greater than 100
                temp = 0;
            }
            // adding score to array
            scores[x] = temp;
        }
        System.out.println();
        String outString = "";
        for (int x = 0; x < ids.length; x++)
            outString = outString + "ID #" + ids[x] + " Score " +
                    scores[x] + "\n";
        System.out.println(outString);
    }
}

// OUT

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