Create Matrix With User Input Using Java

• Mandar Shinde


• 23 Feb 2017

Using 2D array to implement the matrices in java. Below example shows how to take matrix data from the user inputs and display them.

package com.ms.matrix;

import java.util.Scanner;

public class CreateMatrix {

  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
        
        System.out.println("Enter The Number Of Matrix Rows");
         
        int matrixRow = scan.nextInt();
         
        System.out.println("Enter The Number Of Matrix Columns");
         
        int matrixCol = scan.nextInt();
         
        //defining 2D array to hold matrix data
        int[][] matrix = new int[matrixRow][matrixCol];

        // Enter Matrix Data
        enterMatrixData(scan, matrix, matrixRow, matrixCol);
        
        // Print Matrix Data
        printMatrix(matrix, matrixRow, matrixCol);
  }

  public static void enterMatrixData(Scanner scan, int[][] matrix, int matrixRow, int matrixCol){
     System.out.println("Enter Matrix Data");
          
          for (int i = 0; i < matrixRow; i++)
          {
              for (int j = 0; j < matrixCol; j++)
              {
                  matrix[i][j] = scan.nextInt();
              }
          }
  }
  
  public static void printMatrix(int[][] matrix, int matrixRow, int matrixCol){
    System.out.println("Your Matrix is : ");
        
        for (int i = 0; i < matrixRow; i++)
        {
            for (int j = 0; j < matrixCol; j++)
            {
                System.out.print(matrix[i][j]+"\t");
            }
             
            System.out.println();
        }
  }
}

Below is out of above program.

Enter The Number Of Matrix Rows
3
Enter The Number Of Matrix Columns
3
Enter Matrix Data
34
56
67
35
68
98
86
564
676
Your Matrix is : 
34	56	67	
35	68	98	
86	564	676