most efficient 2d array iteration code example

Example 1: for loop in multidimensional array java

public class ForLoopExample {
    public static void main(String[] args) {
        int[][] values = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };
         
        System.out.println("Elements are :");
        for(int i=0; i< values.length; i++) {
            for(int j=0; j< values[i].length; j++) {
                System.out.print(values[i][j] + "\t");
            }
            System.out.println("");
        }
    }
}

Example 2: reading a 2d array with for each loop

for (int[] u: uu) {
    for (int elem: u) {
        // Your individual element
    }
}