Problem facing while accessing already created project into the workspace

This is the problem am facing since many days. am trying to manage that but not able to solve that. while am try to acc开发者_如何学Cess the project which is existing project into workspace then am getting some kind of error at the "@override" tag and when remove that the error disappear and single error will be shown at the application name and that cannot be removed. Am doing for the mean while is try to copy all the code from the each java file and paste it to another project that was created newly.

Can any one help me in this concern. Thanks in advance.

Your problem is related to JDK for this what you have to do is from menu options choose

Window > Preference then navigate to node displayed in below image and set "Compiler compliance level as 1.6"