Java – Replace element in ArrayList at specific index
This tutorial shows you how to replace element in ArrayList at specific index using set(int index, E element) method of List interface Java.
Java – Convert Integer List to int array
This tutorial shows you how to convert Integer List to int array using different ways.
Git – How to compare files in two different branches
This tutorial explains you how to compare files in two different branches in Git.
Error: Expected BEGIN_OBJECT but was STRING at line 1 column 1
Are you getting error “Expected BEGIN_OBJECT but was STRING at line 1 column 1” while parsing Json String to Json Object using Google gson library ?
Error: Could Not Find Or Load Main Class
The most common error that new Java developers would experience while running java program is “Could Not Find Or Load Main Class“.