¡@
java Programming Glossary: timeWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array up the code by almost 6x #include algorithm #include ctime #include iostream int main Generate data const unsigned arraySize.. can restart down the other path. If you guess right every time the train will never have to stop. If you guess wrong too often.. If you guess wrong too often the train will spend a lot of time stopping backing up and restarting. Consider an if statement..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading servlet then this servlet gets instantiated only the first time the first user accessed it or does it get instantiated for all.. HttpSession When a client visits the webapp for the first time and or the HttpSession is to be obtained for the first time.. and or the HttpSession is to be obtained for the first time by request.getSession then the servletcontainer will create..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files are not unit testable. Maintainability per saldo more time is needed to maintain mingled cluttered duplicated code logic...
JSTL in JSF2 Facelets… makes sense? http://stackoverflow.com/questions/3342984/jstl-in-jsf2-facelets-makes-sense are taghandlers and they are executed during view build time while JSF UI components are executed during view render time.. while JSF UI components are executed during view render time . Note that JSF's own f xxx and ui xxx tags which do not extend.. of JSF UI components are evaluated during view build time. Thus the below answer applies to them as well. The view build..
How do I write a correct micro-benchmark in Java? http://stackoverflow.com/questions/504103/how-do-i-write-a-correct-micro-benchmark-in-java to think about. Example Should the benchmark measure time iteration or iterations time and why Related Is stopwatch benchmarking.. Should the benchmark measure time iteration or iterations time and why Related Is stopwatch benchmarking acceptable java jvm.. of initialization effects. Do not print for the first time during your timing phase since printing loads and initializes..
http://stackoverflow.com/questions/5621338/how-to-add-jtable-in-jpanel a combo box to change PLAF Pluggable Look and Feel at run time. The GUI is expandable to the user's need. The image in the.. example of a nested layout that can change PLAF at runtime. The TitledBorder of each JPanel shows the layouts explicitly..
Calculating the Difference Between Two Java Date Instances http://stackoverflow.com/questions/1555262/calculating-the-difference-between-two-java-date-instances current time. I know I can calculate the delta by using getTime new java.util.Date .getTime oldDate.getTime However this just.. the delta by using getTime new java.util.Date .getTime oldDate.getTime However this just leaves me with a Long representing.. by using getTime new java.util.Date .getTime oldDate.getTime However this just leaves me with a Long representing milliseconds...
Java NIO FileChannel versus FileOutputstream performance / usefulness http://stackoverflow.com/questions/1605332/java-nio-filechannel-versus-fileoutputstream-performance-usefulness new File home developer test2 long time1 System.currentTimeMillis InputStream is new FileInputStream file FileOutputStream.. len fos.flush fos.close is.close long time2 System.currentTimeMillis System.out.println Time taken time2 time1 ms private static.. long time2 System.currentTimeMillis System.out.println Time taken time2 time1 ms private static void useFileChannel throws..
Converting ISO8601-compliant String to java.util.Date http://stackoverflow.com/questions/2201925/converting-iso8601-compliant-string-to-java-util-date solution answer Thanks to JuanZe's comment I found the JodaTime magic it is also described here . So the solution is DateTimeFormatter.. magic it is also described here . So the solution is DateTimeFormatter parser2 ISODateTimeFormat.dateTimeNoMillis String jtdate.. here . So the solution is DateTimeFormatter parser2 ISODateTimeFormat.dateTimeNoMillis String jtdate 2010 01 01T12 00 00 01..
How can I get the current date and time in UTC or GMT in Java? http://stackoverflow.com/questions/308683/how-can-i-get-the-current-date-and-time-in-utc-or-gmt-in-java sample code. I would however recommend that you use Joda Time anyway which offers a much clearer API. share improve this..
Difference between Statement and PreparedStatement http://stackoverflow.com/questions/3271249/difference-between-statement-and-preparedstatement 2 person.getEmail preparedStatement.setTimestamp 3 new Timestamp person.getBirthdate .getTime preparedStatement.setBinaryStream.. 2 person.getEmail preparedStatement.setTimestamp 3 new Timestamp person.getBirthdate .getTime preparedStatement.setBinaryStream.. 3 new Timestamp person.getBirthdate .getTime preparedStatement.setBinaryStream 4 person.getPhoto preparedStatement.executeUpdate..
Difference in days between two dates in Java? http://stackoverflow.com/questions/3299972/difference-in-days-between-two-dates-in-java later Calendar.getInstance if a.compareTo b 0 earlier.setTime a later.setTime b else earlier.setTime b later.setTime a while.. if a.compareTo b 0 earlier.setTime a later.setTime b else earlier.setTime b later.setTime a while earlier.get.. b 0 earlier.setTime a later.setTime b else earlier.setTime b later.setTime a while earlier.get Calendar.YEAR later.get..
Why is January month 0 in Java Calendar? http://stackoverflow.com/questions/344380/why-is-january-month-0-in-java-calendar but aaargh anyway. Do yourself a favour and use Joda Time instead or possibly JSR 310 . EDIT As for the reasons why as..
Java string to date conversion http://stackoverflow.com/questions/4216745/java-string-to-date-conversion .. date.setYear .. date.setDay .. date.setlong currentTime date.getTime to convert the date into time. java string date.. .. date.setDay .. date.setlong currentTime date.getTime to convert the date into time. java string date time share.. 30 s Second in minute Number 55 S Millisecond Number 978 z Time zone General time zone Pacific Standard Time PST GMT 08 00 Z..
Calculate date/time difference in java http://stackoverflow.com/questions/5351483/calculate-date-time-difference-in-java Get msec from each and subtract. long diff d2.getTime d1.getTime long diffSeconds diff 1000 long diffMinutes diff.. msec from each and subtract. long diff d2.getTime d1.getTime long diffSeconds diff 1000 long diffMinutes diff 60 1000 long.. 60 1000 long diffHours diff 60 60 1000 System.out.println Time in seconds diffSeconds seconds. System.out.println Time in minutes..
Why is subtracting these two times (in 1927) giving a strange result? http://stackoverflow.com/questions/6841333/why-is-subtracting-these-two-times-in-1927-giving-a-strange-result sf.parse str3 Date sDt4 sf.parse str4 long ld3 sDt3.getTime 1000 long ld4 sDt4.getTime 1000 System.out.println ld3 System.out.println.. sf.parse str4 long ld3 sDt3.getTime 1000 long ld4 sDt4.getTime 1000 System.out.println ld3 System.out.println ld4 System.out.println.. VM build 0.2 b02 internal 19.0 b04 internal mixed mode Timezone TimeZone.getDefault sun.util.calendar.ZoneInfo id Asia Shanghai..
Android update 17 seems incompatible with external Jars http://stackoverflow.com/questions/10046298/android-update-17-seems-incompatible-with-external-jars is throwing class not found exceptions at RUN TIME Meaning they compile fine but then crash at run time with exceptions..
Android FragmentTabHost - Not fully baked yet? http://stackoverflow.com/questions/13686282/android-fragmenttabhost-not-fully-baked-yet COMMENT CODE BECAUSE findViewById android.R.id.tabs EVERY TIME IS NULL WE HAVE OWN LAYOUT if findViewById android.R.id.tabs.. THIS FUNCTION findViewById android.R.id.tabs IS NULL EVERY TIME @deprecated Don't call the original TabHost setup you must..
Java Runtime.maxMemory incorrect? http://stackoverflow.com/questions/1463868/java-runtime-maxmemory-incorrect line and it showed PID USER PR NI VIRT RES SHR S CPU MEM TIME COMMAND 8672 root 20 0 1284m 156m 4296 S 0.3 60.9 0 33.35..
Why final instance class variable in Java? http://stackoverflow.com/questions/19049697/why-final-instance-class-variable-in-java int b Final int b this.b b int getFinal return b 8 COMPILE TIME ERROR Somewhere in code I have seen instance class variable..
Java G1 garbage collection in production http://stackoverflow.com/questions/2254041/java-g1-garbage-collection-in-production Azureus and the apps I develop and it's been a LONG TIME since I saw a pause. Not a significant pause but I mean any..
java.util.Date vs java.sql.Date http://stackoverflow.com/questions/2305973/java-util-date-vs-java-sql-date isn't tied to timezones. java.sql.Time corresponds to SQL TIME and as should be obvious only contains information about hour.. and milliseconds . java.sql.Timestamp corresponds to SQL TIMESTAMP which is exact date to the nanosecond note that util.Date..
Foreign key constraints in Android using SQLite? on Delete cascade http://stackoverflow.com/questions/2545558/foreign-key-constraints-in-android-using-sqlite-on-delete-cascade KEY AUTOINCREMENT LONGITUDE INTEGER LATITUDE INTEGER TIME INTEGER TRACK_ID_FK INTEGER ... java android sqlite foreign..
Java BufferedReader readline blocking? http://stackoverflow.com/questions/2776724/java-bufferedreader-readline-blocking from ps japeters@ computer name ps a PID TT STAT TIME COMMAND 3846 s000 S 0 00.16 zsh 3992 s000 S 0 00.40 usr bin..
How to convert current date into string in java? http://stackoverflow.com/questions/2942857/how-to-convert-current-date-into-string-in-java date formatting share improve this question GET DATE TIME IN ANY FORMAT import java.util.Calendar import java.text.SimpleDateFormat..
Handling MySQL datetimes and timestamps in Java http://stackoverflow.com/questions/3323618/handling-mysql-datetimes-and-timestamps-in-java side there are several standard date and time types DATE TIME and TIMESTAMP at some DB's also called DATETIME which are represented.. are several standard date and time types DATE TIME and TIMESTAMP at some DB's also called DATETIME which are represented.. types DATE TIME and TIMESTAMP at some DB's also called DATETIME which are represented in JDBC as java.sql.Date java.sql.Time..
using IVY dependencies manager programmatically http://stackoverflow.com/questions/3955209/using-ivy-dependencies-manager-programmatically manager my application need to load plug ins at RUN TIME means while the core application is running user can request..
Virtual Memory Usage from Java under Linux, too much memory used http://stackoverflow.com/questions/561245/virtual-memory-usage-from-java-under-linux-too-much-memory-used Hello World example PID USER PR NI VIRT RES SHR S CPU MEM TIME COMMAND 2120 kgregory 20 0 4373m 15m 7152 S 0 0.2 0 00.10 java..
Convert Date/Time for given Timezone - java http://stackoverflow.com/questions/7670355/convert-date-time-for-given-timezone-java basic task. This code does what I want for the CURRENT TIME Calendar calendar new GregorianCalendar TimeZone.getTimeZone..
|