The arrays class is not found in eclipse

You cannot import java.util.Arrays when you are in the Eclipse Guide package, but there is no problem importing packages such as Java.util.Scanner. It is not successful after many attempts.

1, check the Rt.jar package, check whether there is arays in the Java.util package, check no abnormalities, arrays normal existence.

2, reinstall the JDK, this time configuring a new version of the jdk,1.6, re-configuration, the discovery of the guide package is no longer an error, but Eclipse does not compile properly.

3. Download the latest version of Eclipse

4, use the latest eclipse with the newly installed JDK can be used.

5, using the latest eclipse with the original version of the JDK can be used normally.

Reason for analysis: perhaps my unfamiliarity with eclipse led to an error when configuring eclipse for the first time, or Clipse version and incompatibility.

The arrays class is not found in eclipse