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Multidimensional array

Suppose I have this matrix: 1 2 3 4 5 <--------index [1][2] is empty 6 7 8 How can I fill the index [1][2] with a value zero?

10/23/2019 3:20:49 PM

Preet

4 Answers

New Answer

+9

By default array values are filed with 0 For checking index value is empty or not If(arr[1][2]==0) print(empty) else print(filled)

+2

If this is an int[][] array then it is already assigned with 0(zero) value . No cell will be left empty .

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You could create an array of 3 elements, put there 4 and 5, and then put 0, and replace the old array from the matrix with the new array. int[][] arr = {{1, 2, 3}, {4, 5}, {6, 7, 8}}; int[] temp = {arr[1][0], arr[1][1], 0}; arr[1] = temp;

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And how can I check with the help of if else, whether an index is empty?