Web Reference: Jul 23, 2025 Β· When you initialize a 2D array, you must always specify the first dimension (no. of rows), but providing the second dimension (no. of columns) may be omitted. Java compiler is smart enough to manipulate the size by checking the number of elements inside the columns. Nov 6, 2009 Β· If you want to initialize with zeroes, you do the following: If you want to fill in actual values, you can nest the braces: +1 for pointing out how to initialize everything ... but why did you shorten the array? :P. I shortened the array because I didn't want to type twelve sets of numbers. It can be initialized at the time of declaration or later using loops. In this tutorial, we will cover different ways to declare and initialize a 2D array with examples.
YouTube Excerpt: In this video we will learn about Double Dimensional
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