Computer Science
Write a program to declare a matrix a[][] of order (m × n) where 'm' is the number of rows and 'n' is the number of columns such that the values of both 'm' and 'n' must be greater than 2 and less than 10. Allow the user to input integers into this matrix. Perform the following tasks on the matrix:
- Display the original matrix.
- Sort each row of the matrix in ascending order using any standard sorting technique.
- Display the changed matrix after sorting each row.
Test your program for the following data and some random data:
Example 1
INPUT:
M = 4
N = 3
ENTER ELEMENTS OF MATRIX:
11 -2 3
5 16 7
9 0 4
3 1 8
OUTPUT:
ORIGINAL MATRIX
11 -2 3
5 16 7
9 0 4
3 1 8
MATRIX AFTER SORTING ROWS
-2 3 11
5 7 16
0 4 9
1 3 8
Example 2
INPUT:
M = 3
N = 3
ENTER ELEMENTS OF MATRIX
22 5 19
7 36 12
9 13 6
OUTPUT:
ORIGINAL MATRIX
22 5 19
7 36 12
9 13 6
MATRIX AFTER SORTING ROWS
5 19 22
7 12 36
6 9 13
Example 3
INPUT:
M = 11
N = 5
OUTPUT:
MATRIX SIZE OUT OF RANGE.
Answer
import java.util.Scanner;
public class ArraySort
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("ENTER THE VALUE OF M: ");
int m = in.nextInt();
System.out.print("ENTER THE VALUE OF N: ");
int n = in.nextInt();
if (m <= 2
|| m >= 10
|| n <= 2
|| n >= 10) {
System.out.println("MATRIX SIZE OUT OF RANGE.");
return;
}
int a[][] = new int[m][n];
System.out.println("ENTER ELEMENTS OF MATRIX:");
for (int i = 0; i < m; i++) {
System.out.println("ENTER ELEMENTS OF ROW " + (i+1) + ":");
for (int j = 0; j < n; j++) {
a[i][j] = in.nextInt();
}
}
System.out.println("ORIGINAL MATRIX");
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
System.out.print(a[i][j] + " ");
}
System.out.println();
}
for (int i = 0; i < m; i++) {
for (int j = 0; j < n - 1; j++) {
for (int k = 0; k < n - j - 1; k++) {
if (a[i][k] > a[i][k + 1]) {
int t = a[i][k];
a[i][k] = a[i][k+1];
a[i][k+1] = t;
}
}
}
}
System.out.println("MATRIX AFTER SORTING ROWS");
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
System.out.print(a[i][j] + " ");
}
System.out.println();
}
}
}Output
Related Questions
Define a class to accept values into an integer array of order 4 x 4 and check whether it is a DIAGONAL array or not. An array is DIAGONAL if the sum of the left diagonal elements equals the sum of the right diagonal elements. Print the appropriate message.
Example:
3 4 2 5
2 5 2 3
5 3 2 7
1 3 7 1Sum of the left diagonal element = 3 + 5 + 2 + 1 = 11
Sum of the right diagonal element = 5 + 2 + 3 + 1 = 11
Define a class to search for a value input by the user from the list of values given below. If it is found display the message "Search successful", otherwise display the message "Search element not found" using Binary search technique.
5.6, 11.5, 20.8, 35.4, 43.1, 52.4, 66.6, 78.9, 80.0, 95.5.
Name the below structure:

- One dimensional array
- Two Dimensional array with 4 rows and 5 columns
- Three dimensional array
- Two Dimensional array with 5 rows and 4 columns
Write a Java program to store n numbers in an one dimensional array. Pass this array to a function number(int a[]). Display only those numbers whose sum of digit is prime.