Question

How to declare, initialize and print two-dimensional (2D) array of integers in Java

Answer 1

package javaapplication1;

public class Example {
    public static void main(String[] args) {
             
        int[][] array2D = {{   234, 65, 99  }, 
			               { 34564, 12,  3 }};
	
        for (int[] array1D : array2D) {
            for (int item : array1D) {
                System.out.print(item + " ");
            }
            System.out.println();
        }
    }
}


/*
run:
 
234 65 99 
34564 12 3 
 
*/

 

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Answer 2

package javaapplication1;

public class Example {
    public static void main(String[] args) {
             
        int[][] array2D = {{   234, 65, 99 }, 
			               { 34564, 12,  3 }};
	
        for (int i = 0; i < 2; i++) {
            for (int j = 0; j < 3; j++) 
                System.out.println("array2D[" + i + "][" + j + "] = " + array2D[i][j]);
        }
    }
}


/*
run:
 
array2D[0][0] = 234
array2D[0][1] = 65
array2D[0][2] = 99
array2D[1][0] = 34564
array2D[1][1] = 12
array2D[1][2] = 3
 
*/

 

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Answer 3

package javaapplication1;

public class JavaApplication1 {

    public static void main(String[] args) {

        int[][] array2D = {{   234, 65, 99 }, 
                           { 34564, 12,  3 }};
     
        for (int i = 0; i < 2; i++ ) {
            for (int j = 0; j < 3; j++ ) {
                System.out.print(array2D[i][j] + " ");
            }
            System.out.println();
        }
    }
}
 
/*

run:

234 65 99 
34564 12 3 

*/

 

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