Installing dr java

One student reported not being able to create and use a JUnit tester; he got the error message: package junit. To correct this, he did the following. Download file junit If you are using a different jdk, then store it in the appropriate place.

In the popup window, in the field Extra Classpath, hit Add and click on the junit There may be slight differences depending on your operating system, but this is the general idea. M,F , Hollister B Start 06 Mar. Perform the following steps: Go to drjava. You are running Windows On Windows, the problem is generally one of two issues. Cleaning Out Old Java Versions If you are still having problems, it is likely that some old version of Java on your system is causing problems.

DrJava Documentation DrJava is pretty easy to use. If all else fails, there is documention on using DrJava available on the web. Optional: If you use Safari and Java 1. Optional: If you want to compile from the command line which is not needed for the intro courses : The Java 1.

Open Terminal, which is in Applications, in Utilities cmd-shift-U , which brings you the Unix command line. To check if you need to change anything, type java -verison and hit return. If the output is something like java version "1. Use the wrapper scripts javac-introcs and java-introcs ,which add stdlib. Which shell should I use in the Terminal? Bash is the default shell in Mac OS X, but feel free to usewhichever one you prefer. Where can I learn more about the command line?

Here is a short tutorial on thecommand line. Last modified on August 14, All rights reserved. Click on the link that says 'Download' under the heading 'JDK'. Click on the radio button to accept the license agreement. Click the 'Windows x86 32 bit or x64 64 bit download link depending on your windows architecture. Which type of windows do you have? A 'Save as' dialogue box should open up. Save the file to disk. Run the downloaded file by double-clicking on it. Follow the installation wizard as directed.

Leaving all values at their default is fine. After the wizard completes several minutes on an average machine , click Finish to exit. You can now delete the file saved in step 5. If you do this, you can skip steps below. Click on the link that reads 'DrJava for Windows.

So to run DrJava just double-click on the downloaded file. Optional In order to more easily access this program in the future, you can add it to the programs in your Start menu. To do this, simply click and drag it over the Start button until the Start menu opens, and then drag it over the 'All Programs' or 'Programs' item, and you can now drop it somewhere in the popup menu.

Troubleshooting In the previous semesters DrJava would sometimes not be able to find Tools. In this case it would ask you for it when you try to run your program. It is usually located at 'C:Program FilesJavajdk1.

You can also do it from inside Dr. You can defer steps 4—6 until Section 1. Install the Programming Environment Our installer downloads, installs, and configures the Java programming environment you will be using, including DrJava, and the standard libraries from our textbook. Log in to the user account in which you will be programming. Your account must have Administrator privileges with a non-blank password and you must be connected to the Internet.

In the first table, check Accept License Agreement and the click jdk-8umacosx-x The exact verison 8u is not essential.

Double click the downloaded file jdk-8umacosx-x Enter your OS X password when prompted. We recommend all of the default options. Delete jdk-8umacosx-x To install, Download introcs. This creates introcs. If you receive a warning that introcs. If the installation succeeds, you will see the following: A Terminal window containing approximately thisexecution log.

A Standard Drawing window containing a red bullseye and a textbook graphic. Java application into the Applications folder on your mac. How do I run a. To open a jar file in Windows, you must have the Java Runtime Environment installed. Alternatively, you can use decompression software, such as an unzip utility, to view the files in the jar archive. To run the file Java Runtime Environment. To view the file decompression. How do you use Eclipse? Eclipse for Java Eclipse Versions. Step 1: Download.

Step 2: Unzip. Lock Eclipse on Launcher. Step 0: Launch Eclipse.