As a Java-based application, Jaspersoft Studio requires at least a so-called Java Runtime Environment (JRE) to start and open document templates. However, a Java Development Kit (JDK) is required to modify and compile document templates. We therefore recommend that you always install an up-to-date Java Development Kit when using Jaspersoft Studio.
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Java Development Kit
Installation (Windows)
1. Start installation with a double click
2. Click "Next"
3. If necessary, select another destination directory and click "Next"
Note: Language changes in the installation routine can be ignored!
4. Click "Close"
5. Under "Control Panel/All Control Panel Items/System" click "Change settings"
6. In the "Advanced" tab click "Environment variables"
7. Register a new entry JAVA_HOME in the system variables with the directory to the JDK just installed (e.g. C:\Program Files\Java\jdk1.8.0_181)
8. Add an entry to the %JAVA_HOME%\bin directory to the user variable "Path" (Note: in older Windows versions the paths are entered in one line and separated by a semicolon)
Check
If the version is now displayed when entering the command "java -version" in the Windows command line, the settings are correct and the installation of the JDK is complete.