I have "Hello World" kept in a String variable named hi. I need to print it, but reversed. How can I do this? I understand there is some kind of a function already built-in into Java that does th...

Apr 8, 2020 · I need help with saving an array to a text file. So I have the following array private Passenger[] queueArray = new Passenger[30]; and this is the class that I have public class …

Mar 12, 2021 · This is my program code: and the desired output is this (copied from https://www.javatpoint.com/c-gets-puts): and the output I am receiving is this I would be very ...

May 20, 2013 · I am really confused about dynamic binding and static binding. I have read that determining the type of an object at compile time is called static binding and determining it at runtime …

Sep 12, 2020 · I am trying to understand what other alternative I have if I can't write this code: arrayAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1,bluetoothDevices); …

Oct 13, 2022 · Is it possible to define datatype for fields in application.yaml in spring boot? Eg: ingestiondata: NAME: String WEIGHT: Double DOB: Date Basically I want to externalize the data type

Apr 29, 2022 · when building respositories in spring, in my repository interface i extend it using the below extends CrudRepository<EntityName, EntityType> where EntityName is the name of my Entity …

Feb 17, 2022 · Following the hierarchy of the Collections Framework in Java, I struggle to understand where these 2 methods of the Iterator Interface are being implemented. boolean hasNext(); E next(); …

Oct 7, 2018 · You are actually changing the local variable in the main function. This variable is different from the one you declared in the interface which is indeed public, static and final by default. But there …

Feb 20, 2017 · What is the significance of using three different method for a single task. It's the same significance as any task in software development: there are often multiple ways of writing code that …