3. Write Java programs for following: 1. To create a 2D array to store numbers.
ID: 3910264 • Letter: 3
Question
3. Write Java programs for following: 1. To create a 2D array to store numbers. Take the input of the array. Display the contents of the array in the matrix 2. To create two 2D arrays and carry out the following operations: sum of the two matrices and difference of the two 3. To create a matrix of size of MXN, find the sum of each row, sum of each column and if it is a square matrix then find . To create a square matrix of order 3x3 containing integers, using a method CREATE). The program should then use a form. Find and display the sum of all elements, sum of all even numbers, and sum of all odd numbers matrices. Display the matrices in a proper matrix format using a method the sum of diagonal elements also. M and N are user input. function SWAP() which swaps two integer values, to find the transpose of the matrix, and display the transpose using a function DISPLAY()Explanation / Answer
import java.util.Scanner;
class Main {
public static void main(String[] args) {
// declaring variables
int m, n;
Scanner sc = new Scanner(System.in);
System.out.print("Enter the number of rows: ");
m = sc.nextInt();
System.out.print("Enter the number of columns: ");
n = sc.nextInt();
// declaring variables
int[][] a = new int[m][n];
// for each row
for(int row=0; row<m; row++)
{
System.out.printf("Enter elements in row%d: ",row+1);
// for every number in row, taking input
for(int col=0; col<n; col++)
{
a[row][col] = sc.nextInt();
}
}
int total = 0, evenSum = 0, oddSum = 0;
// printing output
System.out.println(" Matrix is given below");
for(int row=0; row<m; row++)
{
for(int col=0; col<n; col++)
{
System.out.print(a[row][col] + " ");
total += a[row][col];
if(a[row][col]%2 == 0)
evenSum += a[row][col];
else
oddSum += a[row][col];
}
System.out.println();
}
System.out.println("Total is "+ total);
System.out.println("Even sum is "+ evenSum);
System.out.println("Odd sum is "+ oddSum);
}
}
/*SAMPLE output
Enter the number of rows: 3
Enter the number of columns: 4
Enter elements in row1: 3 6 5 7
Enter elements in row2: 8 7 6 3
Enter elements in row3: 2 4 3 9
Matrix is given below
3 6 5 7
8 7 6 3
2 4 3 9
Total is 63
Even sum is 26
Odd sum is 37
*/
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.