Java Apache Commons Lang Tutorial

In this Java Apache Commons Lang Tutorial we learn how to use the Apache Commons Lang 3 library.

org.apache.commons.lang3.CharUtils class

• How to check Character is ASCII Printable

• How to check Character is ASCII Numeric

• How to check Character is ASCII Control Character

• How to check Character is ASCII

• How to check Character is ASCII Alphabetic Upper Case

• How to check Character is ASCII Alphanumeric

• How to check Character is ASCII Alphabetic Lower Case

• How to check Character is ASCII Alphabetic

• How to convert String to Character

• How to convert String to char

• How to convert char to String

• How to convert char to int value

• How to convert Character to String

• How to convert Character to int value

• How to convert Character to char

org.apache.commons.lang3.ClassLoaderUtils class

• How to convert Class Loader to String

org.apache.commons.lang3.CharSetUtils class

• Squeeze Repetition Characters in a String

• Keep Only Characters Present in a String

• Delete Characters in a String

• How to count Characters present in a String

• How to check a String Contains Any Characters

org.apache.commons.lang3.ClassPathUtils class

• How to get Fully Qualified Name or Path of Classpath Resource

org.apache.commons.lang3.ArrayUtils class

• How to insert Element into an Array at Index

• How to convert Wrapper Class Array to Primitive Array

• How to convert Primitive Array to Wrapper Class Array

• How to convert Array to Map

• How to check an Array Index is valid

• How to convert Array of Objects to Array of Strings

• How to check Array contains a Value

• How to add Element at the beginning of Array

• How to add Element at the end of Array

• How to add Two Arrays

org.apache.commons.lang3.LocaleUtils class

• How to get Languages by Country Code

• How to convert String to Locale

• How to check Locale is available

• How to get Countries by Language Code

• How to get All Locales

org.apache.commons.lang3.ClassUtils class

• How to get All Superclasses of a Class

• How to get All Interfaces of a Class

• How to convert Class Names to Class Objects

• How to convert Class Objects to Class Names

• How to get Simple Name of Class in Null-safe

• How to get Short Class Name of a Class

• How to get Package Name of a Class

• How to get Name of Class in Null-safe

• How to get Abbreviated Name of a Class

org.apache.commons.lang3.StringUtils class

• How to capitalize first letter of a String

• How to abbreviates a String using ellipses

• How to find difference between two Strings

• How to check String is empty or blank or contains text

org.apache.commons.lang3.math.NumberUtils class

• How to check if a String is a valid numeric value

Happy Coding 😊