I can't open or run my .jar file. I just installed java, but I tried to open the .jar with other programs first, so the double-click defaults to something else and I can't change it back.

Jan 20, 2022 · 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 …

Sep 22, 2022 · It is a .jar file so I downloaded java to open it. However, I still can't open the file even with java downloaded. I checked if java was installed using my cmd: Command prompt …

Jul 11, 2024 · 2- then navigate to the directory where you have the jar file 3- in the the explorer in the top left text field type cmd. It will open a new cmd window in the directory currently opened …

Jan 22, 2018 · 4 You can debug it in the Command Prompt. Open start, type in CMD.exe, hit enter Then, type in java -jar "path\to\file.jar" without the quotes or java "path\to\file.jar" You …

Nov 12, 2009 · 1 You don't have a file associate created. Right click on the .jar file in Internet Explorer, select Open With, and navigate to your JRE. Select the java.exe executable, and …

Feb 5, 2022 · 0 we can use jar command to view or open the jar files. see the official docs, it gives an example: jar tvf xxxxx.jar So check if you provide the correct path of jar files.

Feb 13, 2012 · When I double click the jar file, the GUI program doesn't start by itself. Instead I have to open the Command prompt and then type java -jar abc.jar and only then it starts up.

Oct 18, 2020 · I just installed java, but I tried to open the .jar with other programs first, so the double-click defaults to something else and I can't change it back. java -jar myfile.jar` Above …

Jul 7, 2011 · A java jar file is a library file containing compiled java files (with a .class file) and a META-INF\MANIFEST.MF file, which contains information about the jar file.