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Quiz Java Program ISC 2017

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 for 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 participants(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.io.*;
class Quiz{
    public static void main(String args[])
    throws IOException{
        InputStreamReader in = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(in);
        System.out.print("Number of participants: ");
        int n = Integer.parseInt(br.readLine());
        int highest = 0;
        if(n < 4 || n > 10){
            System.out.println("INPUT SIZE OUT OF RANGE.");
            return;
        }
        char q[][] = new char[n][5];
        char a[] = new char[5];
        int score[] = new int[n];
        System.out.println("Key to the questions:");
        for(int i = 0; i < a.length; i++)
            a[i] = br.readLine().charAt(0);
        System.out.println("Answers by participants:");
        for(int i = 0; i < n; i++){
            System.out.println("Participant " + (i + 1));
            for(int j = 0; j < 5; j++){
                q[i][j] = br.readLine().charAt(0);
                if(q[i][j] == a[j])
                    score[i]++;
            }
            if(highest < score[i])
                highest = score[i];
        }
        for(int i = 0; i < n; i++)
            System.out.println("Participant " + (i + 1) + " = " + score[i]);
        System.out.println("Highest score(s):");
        for(int i = 0; i < n; i++)
            if(score[i] == highest)
                System.out.println("Participant " + (i + 1));
    }
}

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