and you can use enhanced-for loops to loop first, through 1-D arrays (String[]) and then to loop through each String: for (String[] array : chords) { for (String string : array) { // ... } } Note that when you use an enhanced-for loop, you have to specifiy the type of the elements.

An enhanced for loop over an array is equivalent to iterating over the indices of the array in a regular for loop : for (int i=0; i<x.length; i++) { String[] y = x[i]; for (int j=0; j<y.length; j++) { String z = y[j]; System.out.print(z + "\t"); } System.out.println(); }

Mar 8, 2017 · Thx for giving a hand here!. but if you could bear with me when you said "The method Arrays.fill() does not copy the value, instead it operates directly on the array.", here " the array" refers to multidimensional array battleBoard I guess, but then why doesn't it refer to one-dimensional array rows!!, in other words, why doesn't Arrays.fill() deal …

Oct 21, 2014 · Since you need an index to write into an array, you can’t use the enhanced for loop for updates. However, you are modifying only the innermost arrays in the case of a multi-dimensional array in Java. Therefore you can use the enhanced for loop for the outer arrays:

Jul 31, 2017 · When you type for(int i: array[x]), i isn't the index of your array: it is a reference of an element in your array. It will change to the next element until it reaches the end of the array. Your assignement should logically be i = newValue (It won't work though, continue reading). As an example: imagine you have an array singleArray = { 4, 2, 1 ...

Sep 12, 2014 · These functions should work. // First, cache your array dimensions so you don't have to // access them during each iteration of your for loops. int rowLength = array.length, // array width (# of columns) colLength = array[0].length; // array height (# of rows) // This is your function: // Prints array elements row by row var rowString = ""; for(int x …

If you're looping through an array, it shouldn't matter - the enhanced for loop uses array accesses anyway. For example, consider this code:

Aug 14, 2018 · So here's the code that im working on. The goal is simple if row index equals column index sum it up. The normal loop works but i am having trouble converting this to an enhanced loop. Ive heard that it just sometimes doesnt work and il accept it.

Jun 28, 2016 · Yes it is iterable in the way that you can iterate over it like any class that implements the Iterable interface, as all arrays in Java are (using the for each loop). To my knowledge, Arrays do not implement this interface, as they are just Objects, however the compiler does some magic and makes this work anyway.

Apr 14, 2010 · The program needs access to the iterator in order to remove the current element. The for-each loop hides the iterator, so you cannot call remove. Therefore, the for-each loop is not usable for filtering. Similarly it is not usable for loops where you need to replace elements in a list or array as you traverse it.