How can you create a 2D array in Java where each row has a different number of columns? Choose the correct code snippet.

hard📝 Application Q9 of 15

Java - Arrays

Aint[][] arr = new int[3][2]; arr[0].length = 2; arr[1].length = 4; arr[2].length = 3;

Bint[][] arr = new int[3][3]; arr[0].length = 2; arr[1].length = 4; arr[2].length = 3;

Cint[][] arr = new int[3][]; arr[0] = new int[2]; arr[1] = new int[4]; arr[2] = new int[3];

Dint[][] arr = new int[3][3]; arr[0][0] = 1; arr[1][0] = 2; arr[2][0] = 3;

Step-by-Step Solution

Solution:

Step 1: Declare 2D array with undefined column size
int[][] arr = new int[3][]; creates 3 rows with no fixed columns yet.
Step 2: Assign different column sizes to each row
Assign arr[0], arr[1], arr[2] with arrays of different lengths.
Final Answer:
int[][] arr = new int[3][]; arr[0] = new int[2]; arr[1] = new int[4]; arr[2] = new int[3]; -> Option C
Quick Check:
Declare rows first, then assign columns [OK]

Quick Trick: Declare rows only, then assign each row separately [OK]

Common Mistakes:

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