Set a
in your program.
(If you are debugging a GUI application or another looped application, it
is not necessary to set a breakpoint.)
From the main window, choose Debug Start Debugging (F5).
The IDE switches to the debugging workspace and runs the program until it reaches a breakpoint or an exception or exits
normally.
You can also start a debugging session by
choosing Debug Step Into (F7). Program execution stops on the first
line after the main method (before any changes have been made to
the state of the program).