import reports error in java

import reports errors in java

After importing someone else’s project or checking out a project from svn, you will find that many packages report errors .

For example, import java.io cannot be resolved, etc.,

Reason:

The installed jdk is version 1.7.

But the project refers to version 1.8.

Therefore, when running, eclipse is looking for those classes in 1.8, and naturally cannot find them;

At the same time, these classes are common in both versions,

So just change the classes referenced by the project to the locally installed jdk version;

Solution:

Right-click the project-Build Path-Add Libraries - JRE System Library - Double-click - Select jdk1.7

eclipse to execute the menu Project -> Clean operation and recompile.

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