I am following the Hadoop: The Definitive Guide book for learning Hadoop. Till now, I don't have any Java IDE for this. Do I need to install any Java IDE? I have tried making JAR file of the code and running it with Hadoop command as stated in the book but for some reason, I am not able to run it. Also, I cannot find any help from the O'Reilly's website.
Please, show me how to compile simple code like this.