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TwoDArray.java

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import java.util.Scanner;

public class TwoDArray {

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

int r = Integer.parseInt(input.nextLine());

int c = Integer.parseInt(input.nextLine());

int[][] test = new int[r][c];

test[0][0] = 1;

test[1][1] = 2;

test[2][2] = 3;

test[3][3] = 4;

for (int i = 0; i <test.length ; i++) {

int[]subArr = test[i];

for (int j = 0; j < subArr.length; j++) {

System.out.print(subArr[j] + " ");

}

System.out.println();

}

}

}