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A little question about JMM
< H1 > Hello, everyone. I just watched a video tutorial. I have a question < H1 >.
Video tutorial. Is it true to say that stack data can be shared in jmm?
I remember that the data in the heap can be shared. Is he wrong?
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What operations does the Java memory model guarantee to be atomic?
as the title shows, many books and materials do not explicitly mention which operations are atomic, which is very important in writing concurrent programs. ...
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The offset of the instance property of the String type in memory does not change with the length of the string.
public class A {
public static void main(String[] args) throws NoSuchFieldException, IllegalAccessException {
System.out.println( ClassLoader.getSystemClassLoader().toString());
Unsafe unsafe = UnsafeUtil.getUnsafe();
Person person = new...
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-64f5-1b3620a-2bff6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3620a-2bff6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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