If you write a program finish how can you compiled it to execution?

Answer 1

using scintilla editor press ctrl+f7 for compiling and press f5 to run (execute) the program

Answer 2

If using eclipse it auto compiles, i think netbeans does too not sure though. If youre not using an ide for development youll need to go into cmd or terminal and change to the directory where the java file is and use javac to compile it which create a .class file and you can issue the java run command on that .class file