Run time error(compile time working )

#1
#2

@deepgarg46 in the main print function line no. 18 and 24 you have used arr.length but instead since here you re dealing with column size you have to use arr[0].length which will give you no. of columns. corrected wave print function is :

public static void WavePrint(int[][] arr) {
		for (int i = 0; i < arr.length; i++) {
			if (i % 2 == 0) {
//first change made here.
				for (int j = 0; j < arr[0].length; j++) {
					System.out.print(arr[i][j] + ", ");

				}

			} else {
//second change made here
				for (int j = arr[0].length - 1; j >= 0; j--) {
					System.out.print(arr[i][j]+", ");
				}
			}
		}System.out.print("END");
	}
#3

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