cyla.blogg.se - How to make a computer program run automatically on bluej

When a program is compiled before execution, the compiler can search for errors in it. This compile process affects how and when errors occur. Following that, the program gets executed, meaning the commands are executed one-by-one by a Java-interpreter that is able to read Java bytecode. This compilation process is done by Java's compiler, which itself is a program. When a program is run, the source code is first compiled into Java bytecode. To open this up, just find the Terminal program on your computer, and run it.You can run a program in TMC by pressing the green play button, or by selecting "Run project" from the TMC menu.Įven though running the program is straightforward, a lot is happenings behind the scenes.

Most Macs come with javac and emacs already part of the command-line environment.

Download Aquamacs, which is a variant version of Emacs that plays nicely with the Macintosh environment.

To allow javac to work from inside of any directory, you must add its home directory to the “path”.

To start the command line, run the command program.

(If you already have BlueJ, it probably already is.)

To compile in Java, you must have the J‎DK ( Java Development Kit) downloaded.

There is also an FAQ on Emacs in Windows.

You’ll find options for Windows under “Nonfree systems”.

Either download the Oracle JD‎K, or install the openjdk-7-jdk package (or another version, if it is more recent).

Use synaptic or another package manager to download and install the emacs package.

It will be useful to have a reference card with many common Emacs commands.

To use it, you edit your file from within Emacs, and then you compile using the javac command from the terminal.

It can appear indimidating, but working with Emacs can help you to understand the inner workings of a Java program in ways that the other tools don’t. Emacs is a powerful, text-based text editor.