BlueJ is an integrated Java environment specifically designed for introductory teaching.
BlueJ supports:
Fully integrated environment
Graphical class structure display
Graphical and textual editing
Built-in editor, compiler, virtual machine, debugger, etc.
Easy-to-use interface, ideal for beginners
Interactive object creation
Interactive object calls
Interactive testing
Incremental application development
What’s new in version 5.5.0
Fixed slowdown bug with Java classes over 5000 lines.
Fixed bug with terminal sometimes not showing exceptions if the stderr pane was not previously visible.
Fixed bug with rectangle characters showing up in the documentation view on Windows.
Fixed bug with assert panel not changing the OK button to enabled (and the field to disabled) when selecting null/not-null as the assertion while recording a test
Show quick fixes even if the locale is one that supports localised Java compiler error messages (e.g. German)
The Edit->New CSS File has become Edit->New CSS/Text File and will let you create text files
Select several lines in the Java editor, right-click and select "Screenshot line(s)". A screenshot of those lines will be put on the clipboard. The lines must all be visible on screen.
In the Java editor, middle-click the name of any other class to go to its definition/documentation. (Also available on right-click menu.)
When you inspect a String object, new pane for string content and new "Copy to clipboard" button.
New "Re-run" button on left side of main window, re-runs last constructor or static method (or JavaFX app) with same parameters. (Compiles first, if needed.)
The New Class dialog now has a new dropdown: Template or Minimal; the latter lets you create a class/interface/enum/record/etc without anything in the body.
New checkbox in Preferences, in Interface -> General that lets you turn off re-opening last open projects.
Slightly increased the space for line numbers to help with four-digit line numbers.
Terminal window has new "Always on top" menu option.
Made Cmd-comma open preferences on macOS.
Ctrl-+ should increase font size on non-QWERTY keyboards.
Increased default font size to 12 in new installations.
Line numbers on by default in new installations.
Editor tabs can be dragged to reorder them in the editor windows.
Ctrl-scrollwheel on Windows and Linux, and two finger pinch-zoom gesture on all OSes changes the editor font size.
Changed the default Java editor and terminal font to "Source Code Pro", which supports box-drawing characters.
Version 3.0.5 crashes on my Power Mac G5 1.6Ghz running OS X 10.5.8
I can run version 3.0.4 without any issues. Is anyone else having this problem ?
I know the binary is still PPC compatible.
Whenever I try to run a main() method, the program (BlueJ) doesn't respond and just freezes. I am realy concerned about this because if I can't get the Mac version of BlueJ working, I need to work on the PC version and that is the last thing I want to do; use a PC. Can somebody please give me any suggestion on this?