Jan 17, 2021 · Hi Muneeb, if i understood correctly, you're asking in a multi-dimensional array, with different column size for each row, how to assign the values.

Jul 25, 2012 · When creating a 2D array, how does one remember whether rows or columns are specified first?

In this case, we access [1, 1, 1, 1] and thus, the number of columns = 4. When you're given a problem where you can't see the array, you can visualize the array as a rectangle with n X m …

Apr 10, 2016 · I'm playing around with Arrays in Java and had this doubt. How do I find the dimensions of a 2D array in java? For example, I get an array input from System.in and pass it …

Nov 14, 2012 · @uml I know a lot of books call it a 2D array, and if I needed a 2D array in a Java program I would map it to this structure, but it really is an array of arrays, and it is much better …

A nice generic way for implementing a sizable 2D array in Java. You must use Integer, though, as primitives cannot be keys of Treemap.

In each case you seem to be ignoring the fact that you have an array-of-arrays-of-int. Think about how to iterate visiting each int in each int[] array in data.

Dec 4, 2013 · If you want it to be jagged (each sub-array potentially has a different length) then you can use code similar to this answer. Note however that John's assertion that you have to …

Feb 16, 2012 · As shown here. Java will automatically figure out what size the array is and assign the values to like this. int contents[][] = { {1, 2} , { 4, 5} }; Alternatively if you need to declare the …

Oct 14, 2009 · This works because you have 2D array of boolean, a primitive type. But when you have a 2D array of objects, this will not copy or clone the objects. Note that Arrays.copyOf() by …