Java

How-tos How to Create a New List in Java The article introduces methods to create a new list in Java ↗ How-tos How to Check if a String Is a Number in Java This article introduces how to check whether a string is numeric or not in Java. ↗ How-tos How to Read a File to a String in Java Take a look at the several methods by which we can read and convert the file content into a Java string ↗ How-tos How to Convert String to Double in Java This article introduces various methods to convert a string to a double value and handling the NumberFormatException ↗ How-tos How to Check Whether a String Contains a Substring in Java This article introduces how to check whether a string contains a substring in Java. ↗ How-tos How to Join Two Lists in Java Different methods could be used to join two lists in Java without changing the original lists, like stream, Parameterized Constructor, Predeclared List and addAll() method. ↗ How-tos How to Remove Whitespace From String in Java This article introduces how to remove whitespace from string in Java. ↗ How-tos How to Iterate Over Each Element of Map in Java This article introduces how to iterate map elements in Java. ↗ How-tos How to Create a File and Write Data to It in Java The article introduces methods to create a file and write data to it in Java ↗ How-tos How to Read a Large Text File Line by Line in Java The article introduces methods to read a large text file line by line efficiently in Java ↗ How-tos How to Convert Hashmap to JSON Object in Java This article introduces the methods which allow us to convert a hashmap to a simple JSON object ↗ How-tos How to Get the Separate Digits of an Int Number in Java It explains all the methods to separate every single digit of an integer number with examples ↗ How-tos How to Remove Punctuation From String in Java This article introduces how to remove punctuation from string in Java. ↗ How-tos How to Pass a Function as a Parameter in Java The article introduces methods to pass a function as an argument/parameter to another function in Java ↗ How-tos How to Convert a String to Long in Java The article introduces methods to convert a String to a Long in Java ↗ How-tos How to Convert Date to String in Java This article introduces how to convert java.util.date to String in Java. ↗ How-tos How to Convert a String to an Int in Java This article introduces conversion of String to an int in Java. ↗ How-tos How to Convert Integer List to Int Array in Java This article explains how to convert a list of Integer objects into an array of primitive int with the best method available in Java ↗ How-tos How to Get the Current Date-Time in Java This article introduces several methods to get the current date time in Java with explanatory examples. ↗ How-tos How to Convert JSON to Map in Java This article introduces how to convert JSON to Map with Java libraries. ↗ How-tos How to Convert Character to ASCII Numeric Value in Java This article introduces the conversion of a character to ASCII numeric value in Java with various methods and examples. ↗ How-tos How to Create ArrayList From Array in Java This tutorial demonstrates how to create ArrayList from Array in Java using various methods with a thorough description and examples. ↗ How-tos How to Convert Long to Int in Java The article introduces methods to convert a long to an int in Java ↗ How-tos How to Get Key From Value in Java Hashmap This article introduces the steps to get key attached to the value(s) using different methods. ↗