原文链接http://stackoverflow.com/questions/11208479/how-do-i-initialize-a-byte-array-in-java
有如下几种
1.jdk6
private static final byte[] CDRIVES = javax.xml.bind.DatatypeConverter.parseHexBinary("e04fd020ea3a6910a2d808002b30309d");
Tag Archive: Java
需求,生成300w code 不一样的二维码,并且要有一张数据库表来标识每一个code的内容
private static SocialGameAwardMilk milk;
private static int count = 300w;
private static int coreThread [...]
摘自 http://unixboy.javaeye.com/
原文链接 JVM调优总结 -Xms -Xmx -Xmn -Xss
java -Xmx3550m -Xms3550m -Xmn2g -Xss128k-Xmx3550m:设置JVM最大可用内存为3550M。
-Xms3550m:设置JVM促使内存为3550m。此值可以设置与-Xmx相同,以避免每次垃圾回收完成后JVM重新分配内存(就是收缩和扩张,分代回收加上Sun内存分配的算法,避免了IBM JDK最小堆和最大堆一样上的缺陷,但是这对- [...]
Issue :The last packet successfully received from the server was XXXXXX seconds ago.
The last packet sent successfully to the server was XXXXXX seconds ago,
which is longer than the server configured value of ’wait_timeout’.
You should consider eithe [...]
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