Jul 29, 2009 · This answer fails to properly address the question: "How do I declare and initialize an array in Java?" Other answers here show that it is simple to initialize float and int arrays …

8 In Java, a two-dimensional array can be declared as the same as a one-dimensional array. In a one-dimensional array you can write like

Feb 23, 2009 · I know how to do it normally, but I could swear that you could fill out out like a[0] = {0,0,0,0}; How do you do it that way? I did try Google, but I didn't get anything helpful.

Arrays are cumbersome, in most cases you are better off using the Collection API. With Collections, you can add and remove elements and there are specialized Collections for …

Jan 9, 2020 · When comparing arrays in Java, are there any differences between the following 2 statements? Object[] array1, array2; array1.equals(array2); Arrays.equals(array1, array2); And …

Oct 1, 2008 · If you look, Arrays ISN'T returning a true java.util.ArrayList. It's returning an inner class that implements the required methods, but you cannot change the memebers in the list.

Sep 17, 2008 · The array created by Arrays.copyOf will have the component type of the first array, i.e. Integer in this example. When the function is about to copy the second array, an …

Dec 29, 2010 · I'm having a problem finding the sum of all of the integers in an array in Java. I cannot find any useful method in the Math class for this.

Jul 28, 2015 · int[] factors = {1, 2, 3}; ArrayList<Integer> f = new ArrayList(Arrays.asList(factors)); System.out.println(f); } } At the println line this prints something like " [ [I@190d11]" which …

How do I convert an array to a list in Java? I used the Arrays.asList() but the behavior (and signature) somehow changed from Java SE 1.4.2 (docs now in archive) to 8 and most …