As a tip I suggest running your code in debug mode. Which allows you to rewrite method contents as the program is running. If you place a break point in the met

As a tip I suggest running your code in debug mode. Which allows you to rewrite method contents as the program is running. If you place a break point in the method you are working in every time you save the program will reenter the method. I usually work in this mode. JRebel is also worth investigating if you are getting paid to work with java code.