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Q&A for How to Install Java

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What does invalid command mean when I try to download a .jar file?

Community Answer

It could mean you have to clear up space. Try to delete unwanted files.

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Question

Is it important to download JDK?

Community Answer

You only need to download the JDK if you are looking to develop or debug Java-based software. If you're just looking to run Java applications, the JRE is enough. You get the JRE by normally installing Java.

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What do I do if it keeps coming up with the coding text box?

Community Answer

If it's in the installer, redownload the installer. If the installer works, download jarfix.

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I’m trying to download Java to install Optifine. When I try to open the Optifine file, it says Java isn’t downloaded when I did all these steps. What do I do?

Community Answer

Is Java on your desktop? if it isn't, try restarting your computer. It should be on your desktop after you restart.

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