Write a program to store 6 elements in an array P and 4 elements in an array Q, and produce a third array R containing all the elements of arrays P and Q. Display the resultant array.

Java Programming Language (Article) (Program)

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Write a program to store 6 elements in an array P and 4 elements in an array Q, and produce a third array R containing all the elements of arrays P and Q. Display the resultant array.

Example:

Input:

• P[]: 4, 19, 4, 6, 23, 6
• Q[]: 7, 1, 8, 2

Output:

• R[]: 4, 19, 4, 6, 23, 6, 7, 1, 8, 2

Program:

import java.io.*;

class Merge {
    int P[] = new int[6];
    int Q[] = new int[4];
    int R[] = new int[10];
    int i, j;

    void display() throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        // Input elements for array P
        System.out.println("Enter 6 elements for array P:");
        for (i = 0; i < 6; i++) {
            P[i] = Integer.parseInt(br.readLine());
        }

        // Input elements for array Q
        System.out.println("Enter 4 elements for array Q:");
        for (i = 0; i < 4; i++) {
            Q[i] = Integer.parseInt(br.readLine());
        }

        // Merge arrays P and Q into R
        for (i = 0; i < 6; i++) {
            R[i] = P[i];
        }
        for (i = 6, j = 0; j < 4; j++, i++) {
            R[i] = Q[j];
        }

        // Display the resultant array R
        System.out.println("Resultant array R:");
        for (i = 0; i < 10; i++) {
            System.out.print(R[i] + " ");
        }
    }

    public static void main(String[] args) throws IOException {
        Merge merge = new Merge();
        merge.display();
    }
}

Output:

Explanation:

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