为什么我的 java -version 显示“openjdk version”1.8.0_282“”

Question

This is what my CMD looks like. I have JDK 11 but for some reason it shows my version is 1.8. My netbeans uses JDK11. How do I update it from version 1.8?

EDIT: This is JAVA_HOME

and Path

Answer 1

Windows will run whatever Java is first in your PATH . Therefore, you might want to check your environment variables and also check JAVA_HOME , when you're at it.

Answer 2

Although you have set correctly JAVA_HOME , Windows uses the first Java found in the PATH . Remove the following entries as there are symlinks to files elsewhere:

• C:\Program Files\Common Files\Oracle\Java\javapath
• C:\ProgramData\Oracle\Java\javapath

Answer 3

Go to Environment variables > JAVA_HOME > Edit > paste the path of your JDK 11 here instead of JDK-8 path > Go to PATH and now paste the path of the bin folder of JDK 11 here and press ok

You can check the version of JDK now over CMD.

Explanation:

ClassPath decides where all commands will be present.Java code should be locatable & is located using classPath where you specify root directories of all projects that you want to run.