I have installed netbeans (Apache version) with JDK 10 successfully, but can't use var keyword in my project, It keep saying cannot find symbol. Any help would be appreciated.
To use the var keyword with JDK 10 in NetBeans:
- Ensure that you are running the latest version of Apache NetBeans.
- In NetBeans add JDK 10 as a Java platform (Tools > Java Platforms > Add Plaform...). It is not necessary to make JDK 10 the default.
- Create a simple Java application (File > New Project... > Java > Java Application) and declare a var variable (e.g.
var v = 7;) within the main() method.
- Select the project node in the Projects pane, right click and select Properties.
- In the Project Properties window ensure that Libraries > Java Platform is set to JDK 10
- In the Project Properties window ensure that Sources > Source/Binary Format is set to JDK 10
- In the Files pane open the file project.properties (under the nbproject folder) and navigate to the lines for
javac.source and javac.target. Verify that they both contain the value 10.
- Press Shift-F11 to clean and build the project.
If there is still a "cannot find symbol" error for the var declaration then there is something fundamentally wrong with the NetBeans installation, so update the OP with:
- The content of the Output window after doing the Clean and Build.
- The source being compiled.
- The settings for
javac.source and javac.target in project.properties.
- The version information shown in the Help > About window.