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Computer Science

Write a program to declare a single-dimensional array a[] and a square matrix b[][] of size N, where N > 2 and N < 10. Allow the user to input positive integers into the single dimensional array.

Perform the following tasks on the matrix:

  1. Sort the elements of the single-dimensional array in ascending order using any standard sorting technique and display the sorted elements.
  2. Fill the square matrix b[][] in the following format:
    If the array a[] = {5, 2, 8, 1} then, after sorting a[] = {1, 2, 5, 8}
    Then, the matrix b[][] would fill as below:

        1   2   5   8
        1   2   5   1
        1   2   1   2
        1   1   2   5

  1. Display the filled matrix in the above format.

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

Example 1

INPUT:
N = 3
ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY: 3 1 7

OUTPUT:
SORTED ARRAY: 1 3 7
FILLED MATRIX

1   3   7
1   3   1
1   1   3

Example 2

INPUT:
N = 13

OUTPUT:
MATRIX SIZE OUT OF RANGE

Example 3

INPUT:
N = 5
ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY: 10 2 5 23 6

OUTPUT:
SORTED ARRAY: 2 5 6 10 23
FILLED MATRIX

2   5   6   10   23
2   5   6   10   2
2   5   6   2   5
2   5   2   5   6
2   2   5   6   10

Java

Java Arrays

ICSE Prac 2019

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Answer

import java.util.Scanner;

public class Array
{
    public static void sortArray(int arr[]) {
        int n = arr.length;
        for (int i = 0; i < n - 1; i++) {
            for (int j = 0; j < n - i - 1; j++) {
                if (arr[j] > arr[j + 1]) {
                    int t = arr[j];
                    arr[j] = arr[j+1];
                    arr[j+1] = t;
                }
            } 
        }
    }
    
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        System.out.print("ENTER VALUE OF N: ");
        int n = in.nextInt();
        
        if (n <= 2 || n >= 10) {
            System.out.println("MATRIX SIZE OUT OF RANGE");
            return;
        }
        
        int a[] = new int[n];
        int b[][] = new int[n][n];
        
        System.out.println("ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY:");
        for (int i = 0; i < n; i++) {
            a[i] = in.nextInt();
        }
        
        sortArray(a);
        System.out.println("SORTED ARRAY:");
        for (int i = 0; i < n; i++) {
            System.out.print(a[i] + " ");
        }
        
        for (int i = n - 1, r = 0; i >= 0; i--, r++) {
            for (int j = 0; j <= i; j++) {
                b[r][j] = a[j];
            }
            
            for (int k = n - 1; k > i; k--) {
                b[r][k] = a[k - i - 1];
            }
        }
        
        System.out.println();
        System.out.println("FILLED MATRIX:");
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                System.out.print(b[i][j] + " ");
            }
            System.out.println();
        }
    }
}

Output

BlueJ output of Write a program to declare a single-dimensional array a[] and a square matrix b[][] of size N, where N > 2 and N 10. Allow the user to input positive integers into the single dimensional array. Perform the following tasks on the matrix: (a) Sort the elements of the single-dimensional array in ascending order using any standard sorting technique and display the sorted elements. (b) Fill the square matrix b[][] in the following format: If the array a[] = {5, 2, 8, 1} then, after sorting a[] = {1, 2, 5, 8} Then, the matrix b[][] would fill as below: 1 2 5 8 1 2 5 1 1 2 1 2 1 1 2 5 (c) Display the filled matrix in the above format. Test your program for the following data and some random data: Example 1 INPUT: N = 3 ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY: 3 1 7 OUTPUT: SORTED ARRAY: 1 3 7 FILLED MATRIX 1 3 7 1 3 1 1 1 3 Example 2 INPUT: N = 13 OUTPUT: MATRIX SIZE OUT OF RANGE Example 3 INPUT: N = 5 ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY: 10 2 5 23 6 OUTPUT: SORTED ARRAY: 2 5 6 10 23 FILLED MATRIX 2 5 6 10 23 2 5 6 10 2 2 5 6 2 5 2 5 2 5 6 2 2 5 6 10BlueJ output of Write a program to declare a single-dimensional array a[] and a square matrix b[][] of size N, where N > 2 and N 10. Allow the user to input positive integers into the single dimensional array. Perform the following tasks on the matrix: (a) Sort the elements of the single-dimensional array in ascending order using any standard sorting technique and display the sorted elements. (b) Fill the square matrix b[][] in the following format: If the array a[] = {5, 2, 8, 1} then, after sorting a[] = {1, 2, 5, 8} Then, the matrix b[][] would fill as below: 1 2 5 8 1 2 5 1 1 2 1 2 1 1 2 5 (c) Display the filled matrix in the above format. Test your program for the following data and some random data: Example 1 INPUT: N = 3 ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY: 3 1 7 OUTPUT: SORTED ARRAY: 1 3 7 FILLED MATRIX 1 3 7 1 3 1 1 1 3 Example 2 INPUT: N = 13 OUTPUT: MATRIX SIZE OUT OF RANGE Example 3 INPUT: N = 5 ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY: 10 2 5 23 6 OUTPUT: SORTED ARRAY: 2 5 6 10 23 FILLED MATRIX 2 5 6 10 23 2 5 6 10 2 2 5 6 2 5 2 5 2 5 6 2 2 5 6 10BlueJ output of Write a program to declare a single-dimensional array a[] and a square matrix b[][] of size N, where N > 2 and N 10. Allow the user to input positive integers into the single dimensional array. Perform the following tasks on the matrix: (a) Sort the elements of the single-dimensional array in ascending order using any standard sorting technique and display the sorted elements. (b) Fill the square matrix b[][] in the following format: If the array a[] = {5, 2, 8, 1} then, after sorting a[] = {1, 2, 5, 8} Then, the matrix b[][] would fill as below: 1 2 5 8 1 2 5 1 1 2 1 2 1 1 2 5 (c) Display the filled matrix in the above format. Test your program for the following data and some random data: Example 1 INPUT: N = 3 ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY: 3 1 7 OUTPUT: SORTED ARRAY: 1 3 7 FILLED MATRIX 1 3 7 1 3 1 1 1 3 Example 2 INPUT: N = 13 OUTPUT: MATRIX SIZE OUT OF RANGE Example 3 INPUT: N = 5 ENTER ELEMENTS OF SINGLE DIMENSIONAL ARRAY: 10 2 5 23 6 OUTPUT: SORTED ARRAY: 2 5 6 10 23 FILLED MATRIX 2 5 6 10 23 2 5 6 10 2 2 5 6 2 5 2 5 2 5 6 2 2 5 6 10

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