A novice uses intellij to configure springboot's Hello World program and reports an error

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as configured step by step, tutorial links

Mar.11,2021

String are all marked red. I guess you haven't configured jdk.
configure jdk in File- > Project Structure- > Project

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-64f5-1b2bac1-2baaa.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2bac1-2baaa.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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