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I am completely new to ubuntu. Just got it installed on my laptop yesterday as the windows program crashed and this is the only thing we could get to work. i have downloaded techniclauncher on the computer and it saves it as a .jar file. I have no idea how to get it opened/downloaded/launched (whatever the correct word is) so that we can actually play the game. Can someone please help me learn how to do this. Again I am completely new and do not understand all the ubuntu terminology but i am computer literate and can generally be told specifics and get it done. thank you so much

laurie
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2 Answers2

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To open .jar file you need to have installed Java. Then you need to open .jar file with java. ( Change the Open With .. option in right click menu to the Java package you have installed.)

If you havent installed Java, you can installed by following :

Press Ctrl+Alt+T : You will get the Terminal with prompt. (Like CMD in Win)

Then, in the prompt Copy & Paste this line. Then press Enter

sudo apt-get install openjdk-7-jre openjdk-7-jdk

You should be online in internet while doing this.

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  1. Install Java 8 (Java 10 and 11 are too new, from reddit) with sudo apt install openjdk-8-jdk

  2. Ensure java -version shows 1.8. If not use update-alternatives with sudo update-alternatives --config java

  3. Run jar file with java -jar TechnicLauncher.jar

qwr
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