Eclipse uses Java to connect MySQL reports

below. If you want to connect MySQL,build path with java under eclipse, what is the problem with ClassNotFoudException?

`package kikikaka;

public class Kika {

public static void main(String[] args) {
 try{Class.forName("com.mysql.jdbc.Driver");
 }catch(ClassNotFoundException e) {
        System.out.println("Driver err");
    }

}
} `

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Jun.17,2021

successfully connected to QQ after receiving netbeans

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bf45ac-31671.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bf45ac-31671.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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