How to convert String to long in Java
How to convert String to long in Java using Long.parseLong and Long.valueOf methods. Simple example provided.
How to convert String to int in Java
How to convert String to int in Java using Integer.parseInt and Integer.valueOf methods. Simple example provided.
How to generate tables from entities using EclipseLink
How to generate entities from tables using EclipseLink. Simple example using one-to-one database relationship. @MappedSuperclass example included
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.
How to create XML file in Java using DOM
How to create XML file in Java using DOM. Simple example with pretty printing to output the content to console or to a file.
How to read and write files in Java
How to read and write files in Java using BufferedReader and BufferedWriter. The example highlights the classic resource release and try-with-resource approach.
