 Hey guys in this video, we're gonna take a look at what happens when you have an older version of Java installed and Your program showed shows a red exclamation sign like here So what we're gonna do is we're gonna Google for Java SE, which is Java standard edition Follow the link. It has JDK download The current version is JDK 14.0.2 You can download the windows installer and then Finish the installation Now I've already done the installation. So I'm gonna go to the next step Where you can click on the project and change the build path But if you don't have the new Java version registered, then you can change it through window Preferences and you'll see here install JREs So in my eclipse, I've removed JDK 14. So it's not there and I can search and Then I can go to C drive program files and And Java as I said, I've already installed JDK 14.0.2 on the computer so if you let that file finish downloading and open it and Follow the links It says Java and solution is in progress. That's fine. But typically you would just run that so Click that one folder JDK 14 select folder It's gonna search for the appropriate JDK and boom. You've got JDK 14.0.2 You can Choose that one apply and close And now you'll see that that error has disappeared You'll see these yellow exclamation signs, but they are not a problem. All that they mean is that there are some Libraries or something that I have added which I'm not using or maybe there are variables I've created that I'm not using But the important thing is that the red exclamation sign disappears and that's it That's how you add an updated JDK to eclipse