Java is a programming language which was designed to be written once, and run anywhere (WORA). With this in mind, Java runs on a platform called the JRE which ensures that programs will perform the same on different Operating Systems (OS). There are a few things we need to do to set up the JRE.
Ensure the JRE is installed
Most newer computers come pre-installed with a JRE version to ensure that Java can run straight off the bat.
It's recommended that you go to www.java.com/getjava to download the latest version. You also can check what version you have here.
Working with JAR files
- Ensure the JRE is installed (see above)
- If you downloaded a ZIP file, then unzip it to a convenient location (e.g. the desktop, your documents folder, etc)
- Double-click on the executable Jar file. 99% of the time, no installation is necessary.
Working with EXE files (Windows only)
- Repeat steps 1 and 2 above
- Double-click on the Exe file to run the program
- Sometimes this may trigger an installer, in that case install as normal and the program should function like a native application (JRE still required though).
Additional Note
Most of the programs available on this site come packaged in compressed ZIP files. This makes it faster and easier to download.
However, before you run the program, you're going to need to uncompress, or unzip it. If you're having trouble unzipping, the YouTube video below might help (the video uses WinZip).
If you're running Windows and are looking for a freeware unzipping solution, check out 7-Zip. It's a product I highly recommend for file handling.
Note: If you're using Internet Explorer, you may need to over-ride the security settings.
Just click "Allow Blocked Content" from the bar on top. (via)
