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In log4j, does checking isDebugEnabled before logging improve performance?
... improve the performance.
https://logging.apache.org/log4j/2.0/manual/api.html#Java_8_lambda_support_for_lazy_logging
import java.util.logging.Logger;
...
Logger.getLogger("hello").info(() -> "Hello " + name);
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How to run a program without an operating system?
...d by GRUB at: https://www.gnu.org/software/grub/manual/multiboot/multiboot.html
You can turn a multiboot file into a bootable disk with grub-mkrescue.
Firmware
In truth, your boot sector is not the first software that runs on the system's CPU.
What actually runs first is the so-called firmware, whic...
How to calculate date difference in JavaScript?
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<html lang="en">
<head>
<script>
function getDateDiff(time1, time2) {
var str1= time1.split('/');
var str2= time2.split('/');
// yyyy , mm , dd
var t1 = new Date(str1[2], str1[0]-...
Where is array's length property defined?
...at
10.7 Array Members
http://java.sun.com/docs/books/jls/second_edition/html/arrays.doc.html
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[完整源码实例] 修改 CListCtrl 的标题栏字体颜色；重绘 CListCtrl 标题栏 ...
... 0, // nWidth
0, // nEscapement
0, // nOrientation
700, // nWeight
FALSE, // bItalic
FALSE, // bUnde...
Matlab: Running an m-file from command-line
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A command like this runs the m-file successfully:
"C:\<a long path here>\matlab.exe" -nodisplay -nosplash -nodesktop -r "run('C:\<a long path here>\mfile.m'); exit;"
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C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...器+客户端Linux下select函数实现的聊天服务器消息缓冲区类MessageBuffer，接收线程将受到的消息放入缓冲区，发送线程从缓冲区中取出消息MessageBuffe...目录：
Linux下select函数实现的聊天服务器
基于WSAAsyncSelect模型实现的聊天室图形...
What's wrong with overridable method calls in constructors?
..., upon creation of new instances java.sun.com/docs/books/jls/third_edition/html/… ; I'm not sure if that addresses your comment though.
– polygenelubricants
Aug 4 '10 at 11:49
3
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Difference between /res and /assets directories
...id documentation:
from http://developer.android.com/tools/projects/index.html
assets/
This is empty. You can use it to store raw asset files. Files that you save here are compiled into an .apk file as-is, and the original filename is preserved. You can navigate this directory in the same way as ...
What does java.lang.Thread.interrupt() do?
...http://download.oracle.com/javase/tutorial/essential/concurrency/interrupt.html
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