Question

How to print two dimensional (2D) int array in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        int[][] arr = {{31, 22, 33, 88}, 
                      {42, 85, 987, 1}};
                      
        for (int i = 0; i < arr.length; i++) {
            for (int j = 0; j < arr[i].length; j++)
                 System.out.format("%3d", arr[i][j]);
            System.out.println();
        }
    }
}
 
 
 
/*
run:
 
 31 22 33 88
 42 85987  1

*/

 

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Answer 2

import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        int[][] arr = {{31, 22, 33, 88}, 
                      {42, 85, 987, 1}};
                      
        System.out.println(Arrays.deepToString(arr));
    }
}
 
 
 
/*
run:
 
[[31, 22, 33, 88], [42, 85, 987, 1]]

*/

 

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Answer 3

import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        int[][] arr = {{31, 22, 33, 88}, 
                      {42, 85, 987, 1}};
                      
        for (int[] col : arr) {
            for (int n : col) {
                System.out.print(n + " ");
            }
            System.out.println();
        }
    }
}
 
 
 
/*
run:
 
31 22 33 88 
42 85 987 1 

*/

 

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