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public class Array2DExample1 {

public static void main(String[] args) {

// Create a 3x4 2D array

int[][] arr = new int[3][4];

// Initialize index-wise (no shortcuts, assign each element manually)

arr[0][0] = 10;

arr[0][1] = 20;

arr[0][2] = 30;

arr[0][3] = 40;

arr[1][0] = 50;

arr[1][1] = 60;

arr[1][2] = 70;

arr[1][3] = 80;

arr[2][0] = 90;

arr[2][1] = 100;

arr[2][2] = 110;

arr[2][3] = 120;

// Display the array

System.out.println("2D Array:");

for (int i = 0; i < 3; i++) {

for (int j = 0; j < 4; j++) {

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

}

System.out.println();

}

}

}