Asked the basic question, is String a class, an object, or a reference type?

String. of java It is called class, object and reference type.
how about opening up space in memory. Thank you

Mar.12,2021

string is a class

clipboard.png

the runtime data area of jvm is its own Baidu. You have to ask for an interview. I won't answer

.
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-64f5-1ea9d8e-1f8b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ea9d8e-1f8b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?