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Two 2d Arrays Sum

I’m trying to take two 2d array inputs, and then add them together, but it won’t compile correctly. For some reason if i declare the ‘addedMatrix’ outside of the method the code compiles but the addedMatrix is blank Heres what I have so far : Answer Your syntax is wrong completely firs…

Using both FileInputStream and FileOutputStream

I am stuck on my problem where I have to read a file given by the user and then calculate names, grades, and such. But the issue I am having is that I need to take that data and store it in a text file names report.txt and then take the data from the first file and then compute the

Check if ArrayList Contains same array order ignored

I’ve initialized an ArrayList holding int arrays as such: ArrayList<int[]> holder = new ArrayList<int[]>(); If I add an int[] like this: int[] first = {1, 2, 3}; holder.add(first); If I do this check, I want the function to return true, but it returns false right now int[] second = {2, 1, 3}…