JDK and IDE
Eclipse
Eclipse is a software framework for developing IDEs. Eclipse is open source, available for free from http://www.eclipse.org, runs on all modern operating systems, and include a popular Java IDE.
You can download the Eclipse tutorial here.
Create a new Java project
Create a new class
Error messages for forgetting ;
Fix the error
Run the application for the first time by right-clicking and select Run As Java Application. Afterwards click on the Run button to run again.