People new to Java commonly encounter issues when trying to modify the original data using the new style foreach loop. Use Why doesn't assigning to the iteration variable in a foreach loop change the …

Being somewhat new to the Java language I'm trying to familiarize myself with all the ways (or at least the non-pathological ones) that one might iterate through a list (or perhaps other collection...

Jan 10, 2012 · The scope of local variables should always be the smallest possible. In your example I presume str is not used outside of the while loop, otherwise you would not be asking the question, …

Mar 2, 2017 · 44 I have been asked to use the enhanced for loop in my coding. I have only been taught how to use traditional for loops, and as such don't know about the differences between it and the …

16 In Java, you can't, as foreach was meant to hide the iterator. You must do the normal For loop in order to get the current iteration.

Sep 1, 2021 · The suggestion I would make is use a for-each loop (also known as an "enhanced for loop") instead of iterating by index. Not everything needs to use streams just because.

Jul 1, 2009 · Since all maps in Java implement the Map interface, the following techniques will work for any map implementation (HashMap, TreeMap, LinkedHashMap, Hashtable, etc.) Method #1: …

Mar 7, 2013 · In my code I have a for loop that iterates through a method of code until it meets the for condition. Is there anyway to break out of this for loop? So if we look at the code below, what if we wa...

A continue statement without a label will re-execute from the condition the innermost while or do loop, and from the update expression of the innermost for loop. It is often used to early-terminate a loop's …

May 20, 2009 · The following code shows an example of exiting from the innermost loop. In other works,after executing the following code, you are at the outside of the loop of 'k' variables and still …