- You can tell from the
shade of a
program icon in
BlueJ whether the
program has been
successfully compiled (translated)
- Icon shades:
- Shaded: this program
has
not
been compiled successfully
- Unshaded: this program
has been
compiled successfully
- Shaded: this program
has
not
been compiled successfully
- You can compile (= translate)
a Java program in BlueJ
in 2 different ways:
- From BlueJ's
editor window:
Left click on the Compile button
- From BlueJ's
main window:
Right click on the program file and then left click of the Compile menu button
- From BlueJ's
editor window:
- When the program is
compiled successfully,
the icon
in the main window
(associated with the
program) become
unshaded:
- Execute a Java program in BlueJ:
- Right click on
the program file in
BlueJ's main window, and then
- Left click on the
void main(String[]args) tab:
- A window will pop up:
Left click on OK to run the program.
Result: the output of the program is shown in BlueJ's "terminal" window:
- Right click on
the program file in
BlueJ's main window, and then