How to write string replace java application

Link to the tutorial: http://www.itcuties.com/java/how-to-write-string-replace-java-application/ In this tutorial we are going to show you how to write string replace java application. This simple application is processing directories tree recursively and finds files with a given extension. For each file that has appropriate extension a processing is done -- we find strings and replace it with other strings. String replace definition is held in a separate file and loaded at the beginning of the program. It this string replace java application we are going to demonstrate following mechanisms: - Reading program agruments - Reading and writing files in java - Coping file bytes from one to another in java - Recursive files and directories processing in java - Using Map interface in java