Question

How to define, initialize and print 2D array (matrix) in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        int[][] arr = {{31, 22, 33}, 
                       {42, 85, 987}};
 
        for (int i = 0; i < arr.length; i++) {
            for (int j = 0; j < arr[i].length; j++)
                 System.out.format("%4d", arr[i][j]);
            System.out.println();
        }
    }
}



 
/*
                
run:
   
  31  22  33
  42  85 987
       
*/

 

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