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.
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“.
Java Round up a Float value to an Int value
This tutorial shows you how to round up a float value to an int value using ceil() and floor() methods.