Quiz Java Program | ISC Computer Science 2017 Practical

The result of a quiz competition is to be prepared as follows:

The quiz has five questions with four multiple choices (A, B, C, D), with each question carrying 1 mark for the correct answer. Design a program to accept the number of participants N such that N must be greater than 3 and less than 11. Create a double dimensional array of size (N × 5) to store the answers of each participant row-wise. Calculate the marks of each participant by matching the correct answer stored in a single dimensional array of size 5. Display the scores for each participant and also the participant(s) having the highest score.

Example:
If the value of N = 4, then the array would be:

Q1Q2Q3Q4Q5
Participant 1ABBCA
Participant 2DADCB
Participant 3AABAC
Participant 4DCCAB

Key to the question:

DCCAB

Note: Array entries are line fed (i.e. one entry per line)

Test your program for the following data and some random data:

Example 1
INPUT:
N = 5
Participant 1 D A B C C
Participant 2 A A D C B
Participant 3 B A C D B
Participant 4 D A D C B
Participant 5 B C A D D
Key: B C D A A
OUTPUT:
Scores:
Participant 1 = 0
Participant 2 = 1
Participant 3 = 1
Participant 4 = 1
Participant 5 = 2
Highest score: Participant 5

Example 2
INPUT:
N = 4
Participant 1 A C C B D
Participant 2 B C A A C
Participant 3 B C B A A
Participant 4 C C D D B
Key: A C D B B
OUTPUT:
Scores:
Participant 1 = 3
Participant 2 = 1
Participant 3 = 1
Participant 4 = 3
Highest score:
Participant 1
Participant 4

Example 3
INPUT:
N = 12
OUTPUT:
INPUT SIZE OUT OF RANGE

import java.util.Scanner;
class Quiz{
    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
        System.out.print("N = ");
        int n = Integer.parseInt(in.nextLine());
        if(n < 4 || n > 10){
            System.out.println("INPUT SIZE OUT OF RANGE");
            return;
        }
        char ans[][] = new char[n][5];
        for(int i = 0; i < n; i++){
            System.out.println("Participant " + (i + 1) + ": ");
            for(int j = 0; j < 5; j++)
                ans[i][j] = Character.toUpperCase(in.nextLine().charAt(0));
        }
        char key[] = new char[5];
        System.out.println("Key: ");
        for(int i = 0; i < 5; i++)
            key[i] = Character.toUpperCase(in.nextLine().charAt(0));
        int score[] = new int[n];
        int highest = 0;
        for(int i = 0; i < n; i++){
            for(int j = 0; j < 5; j++){
                if(ans[i][j] == key[j])
                    score[i]++;
            }
            System.out.println("Participant " + (i + 1) + " = " + score[i]);
            if(highest < score[i])
                highest = score[i];
        }
        System.out.println("Highest score:");
        for(int i = 0; i < n; i++){
            if(highest == score[i])
                System.out.println("Participant " + (i + 1));
        }
    }
}

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