(C++) Uniform random number between [0.1) http://www.cplusplus.com/forum/beginner/7445/ #include #include #include #include #include using namespace std; main () { double AOD; srand((unsigned)time(NULL)); AOD=((double) rand() / (RAND_MAX+1)) ; cout Programming 2012.07.05
(Java) Determining If a File or Directory Exists http://www.exampledepot.com/egs/java.io/Exists.html boolean exists = (new File("filename")).exists(); if (exists) { // File or directory exists } else { // File or directory does not exist } http://docs.oracle.com/javase/1.4.2/docs/api/java/io/File.html#exists() http://docs.oracle.com/javase/1.5.0/docs/api/java/io/File.html#exists() Programming 2012.07.03
(Java) Computing Elapsed Time http://www.exampledepot.com/egs/java.lang/elapsedtime.html // Get current time long start = System.currentTimeMillis(); // Do something ... // Get elapsed time in milliseconds long elapsedTimeMillis = System.currentTimeMillis()-start; // Get elapsed time in seconds float elapsedTimeSec = elapsedTimeMillis/1000F; // Get elapsed time in minutes float elapsedTimeMin = elapsedTimeMillis/(60*1000F); .. Programming 2012.07.03
java zip압축 하기/풀기 http://nuninaya.tistory.com/550 import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; import java.util.zip.ZipOutputStream; import org.apache.commons.lang.StringUtils; public class ZipUtils { private static final int COMPRESS.. Programming 2012.07.03
Eclipse Problem : failed to create the java virtual machine http://sunoblog.net/2010/12/eclipse-problem-failed-to-create-the-java-virtual-machine/ in eclipse.ini:add -vmjavaw.exe Programming 2012.06.30
how to define a string in gcc command line? http://stackoverflow.com/questions/2410976/how-to-define-a-string-in-gcc-command-line to avoid the shell "eating" the quotes and other characters, you might try single quotes, like this:gcc -o test test.cpp -DNAME='"Mary"' This way you have full control what is defined (quotes, spaces, special characters, and all). Programming 2012.06.28
Original 1964 Dartmouth BASIC Manual (PDF) http://www.bitsavers.org/pdf/dartmouth/BASIC_Oct64.pdf Programming 2012.06.25
(C++) __asm int 3; http://spikez.tistory.com/72 유용한 디버깅 기술 하나 1__asm int 3; Visual C에서 코드래벨에서 break point를 거는 코드입니다.DLL에서 디버깅시 loading이 되기 전이면 tool에서 break point를 잡기가 까다롭습니다. 이럴때 break point를 원하는 코드에 "__asm int 3;" 이렇게 입력을 해놓으면,실행시 이 시점에서 break point가 걸리게됩니다. 이와 비슷하게 Intel에서 정의해놓은 exception용 interrupt 코드들이 있어 추가합니다.출처는 당근 MSDN이구요. Intel-Defined Exceptions and InterruptsCodeDefinition00Divide error01Debug exception.. Programming 2012.06.23