Java Programming | Creating matrix using 2d arrays

Introduction

This is a tutorial for creating a matrix using 2d arrays. The program is given below that creates matrix of numbers given by user. The program is extendable. Go enjoy the program. Lets begin………..

Program for creating a matrix using 2d arrays.

//import Scanner as we require it.
import java.util.Scanner;

// the name of our class its public
public class Matrix {
	//void main
		public static void main (String[] args)
		{
			//declare int
			int i,j,a[][] = new int[10][10];

			//Declare input as scanner
			Scanner input = new Scanner(System.in);

			//Take input for arrays
			for(i=0;i<3;i++)
			{
				for(j=0;j<3;j++)
				{
					System.out.println("Enter Number :");
					a[i][j] = input.nextInt();
				}
			}

			System.out.println("Matrix :-");
			//print the matrix
			for(i=0;i<3;i++)
			{
				for(j=0;j<3;j++)
					System.out.print(a[i][j]+" ");
				System.out.print("\n");
			}
		}
}

Output

Enter Number :
1
Enter Number :
2
Enter Number :
3
Enter Number :
4
Enter Number :
5
Enter Number :
6
Enter Number :
7
Enter Number :
8
Enter Number :
9
Matrix :-
1 2 3
4 5 6
7 8 9

How does it work

  1. You enter the number.
  2. The number is saved in respective array.
  3. The numbers are taken are printed to form matrix.

Extending it

The program can be extended by using more numbers and making the matrix more bigger.

Explanation.

  1. Import the Scanner.
  2. Declare the class as public
  3. Add the void main function
  4. Declare input as Scanner.
  5. Add two for loops.
  6. Add system.out.println() function with the message to enter number.
  7. Take the inputs and save it in arrays.
  8. Add two more loop to print the matrix.
  9. Add system.out.print() function to print \n to break line.

At the end.

You learnt creating the Java program for Creating matrix using 2d arrays. So now enjoy the program.

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