Implementing swing in jdk 1.8 using eclipse

Question

I was trying to implement the concept of swing using eclipse in jdk 1.8 but when I used the identifier like JButton then an error came :

The type JButton is not accessible due to restriction on required library C:\ProgramFiles
\Java\jre 1.8.0_31\lib\rt.jar

I am a newbie Java programmer.Can someone please help me out with this error?

Welcome to SO. I don't quite understand what you are trying to do. — Uwe Allner, Jun 10 '15 at 06:54
See here: http://stackoverflow.com/questions/9266632/access-restriction-is-not-accessible-due-to-restriction-on-required-library — Stefan, Jun 10 '15 at 06:55
I was trying to make a GUI using the concept of swing but when I used the keywords like "JButton" and "JPanel" then it was showing me the above error. — ram, Jun 10 '15 at 07:02
I'm sorry but I do not have enough reputation to post image. — ram, Jun 10 '15 at 07:17
@ram but you can post image somewhere and link here.upload your image to http://imgur.com/ and give the link.because question is unclear to me sry — Madhawa Priyashantha, Jun 10 '15 at 07:20
@FastSnail : i have uploaded the image ,here's the link: http://imgur.com/uZJd9as — ram, Jun 10 '15 at 07:30
@ram good but you can use snippy tool to take a quality snapshot without camera — Madhawa Priyashantha, Jun 10 '15 at 07:32
related http://stackoverflow.com/questions/24600077/jframe-restricted-due-to-restriction-on-required-library and http://stackoverflow.com/questions/24600077/jframe-restricted-due-to-restriction-on-required-library — Madhawa Priyashantha, Jun 10 '15 at 07:34
`JButton` is not a keyword. Keywords are the 50 words [listed here](http://docs.oracle.com/javase/specs/jls/se8/html/jls-3.html#jls-3.9). `JButton` is an identifier and in the context you want to use it, most probably, it’s a class name. — Holger, Jun 10 '15 at 08:38

score 2 · Accepted Answer · edited May 23 '17 at 10:26

Your project settings are wrong. An ancient question can be found here with the same issue (and the correct way to resolve it).

Basically you need to check your project's Build Path to make sure that it's referring to the default JRE and you're not including the Swing classes from somewhere else causing a conflict: Eclipse sees that you're trying to use class JButton from foobar.jar instead of rt.jar and is saying that it's not right.

Implementing swing in jdk 1.8 using eclipse

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