Sending MPU6050 data over serial to Java/C# Program
You may find RXTX java library helpful.  

You can format the data (float as calculated at Arduino side) in any mannner that you desire. RXTX library will send the data. It will then up to the Java program (non Arduino side, like PC, etc.) how to interpret the data and extract the values. 

http://playground.arduino.cc/interfacing/java

Hope this helps