How to create Null Object Pattern in Java
How to create Null Object Pattern in Java. Simple example using object and null object class implementation.
How to create Abstract Factory Pattern in Java
How to create a abstract factory design pattern in Java using the example of creating a database table/stored procedure for multiple database engines.
How to create Factory Pattern in Java
How to create a factory design pattern in Java using the example of creating a database table for multiple database engines.
How to delete directory in Java
How to delete directory in Java using File.delete() method. Recursive delete is applied if the directory is not empty.
How to read XML file in Java using DOM
How to read XML file in Java using DOM. 2 methods: one reading each element by the name and second parsing the entire DOMobject.
Split URL into components using regex
Split URL into components (protocol, domain, port and uri) using regex in Java. Simple and tested example.
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