How to Round Double to Any Decimal Place in Java
How to correctly round a double to the nearest integer, tenths, hundredths, thousandths, or any decimal place in Java. The code handles both positive numbers, negative numbers, and zero, too.
Java
Generate All Permutations of a String in Java
How to generate all permutations of a given string using a Java recursive function
Java Keypress Generator
How to generate keypress events in Java using the Robot class.
Java String to HTML Entities Encoder
How to encode a plain text string into appropriate HTML entities using Java. This method is similar to the htmlentities function in PHP.
JSON Interchange Using AJAX and Java Servlets
How to implement a JSON based data interchange using an AJAX client-side request and a Java Servlet server-side response.