Check if Java (or any applications) installed in Windows

Question

I want to provide software which runs on Java. For the software I also would like to provide something which allows users to see if their machine already has Java installed.

It should be like this if it is in macOS

#!/bin/sh
command -v java

How can I achieve what I want? what environment should I use? Windows batch ? or..

you can run java -version in bat file and check – vivekdubey Dec 03 '19 at 05:09 — vivekdubey, Dec 03 '19 at 05:09
thank you I also use registry as suggested by @LinuX Man. – kensuke1984 Dec 03 '19 at 12:16 — kensuke1984, Dec 03 '19 at 12:16

score 1 · Accepted Answer · answered Dec 03 '19 at 05:40

Suppose your program needs to be RUN with Java, it's cleared you meant about JRE.

Just check in the Registry if the CurrentVersion exists as shown.

You may use this way to read the Registry (JAVA code): Read/write to Windows registry using Java

If the registry value returns, then JRE installed.

Check if Java (or any applications) installed in Windows

1 Answers1