How to sort numeric strings as numbers in mongodb
This tutorial guides you how to compare and sort numeric strings as numbers in mongodb using Collation feature of Mongo.
Java : Convert comma separated String to List
This tutorial shows you how to convert comma separated String to List and vice versa.
Java program to check if string is not empty and not null
In this sneppet you will learn how to check if string is not empty and not null in Java. Note, a String with just whitespace is not considered as empty in Java. The following are the ways to test whether… Read More!
2 Ways to Remove Duplicate Characters from a String in O(n) Time
Given an input string, the goal is to remove duplicate characters from a string and the output string should have the resultant string without modifying the order of characters in the original string. Let’s solve the above problem in O(n)… Read More!