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목록Programming/Java (38)
2011/04/26 - [Programming/Java] - Do not use loops for list operations 2011/04/28 - [Programming/Java] - Do not use loops for list operations import java.util.ArrayList; import java.util.List; import com.google.common.collect.Lists; import ch.lambdaj.Lambda; import static org.hamcrest.Matchers.greaterThan; //item 3 from http://codemonkeyism.com/generation-java-programming-style //-cp .:./Guava/g..
2011/04/26 - [Programming/Java] - Do not use loops for list operations // item 3 from http://codemonkeyism.com/generation-java-programming-style // http://code.google.com/p/google-collections // http://blogs.warwick.ac.uk/chrismay/entry/writing_functional_java // http://codemunchies.com/2009/11/functional-java-filtering-and-ordering-with-google-collections-part-3 // http://stackoverflow.com/ques..
//http://blog.naver.com/enternow/120027291479 //http://www.java2s.com/Code/JavaAPI/java.util/implementsIteratorCharacter.htm import java.util.Iterator; public class TestIterableIterator implements Iterable, Iterator{ private final String text; public TestIterableIterator(String text){this.text=text;} public Iterator iterator(){returnthis;} private int curr=0; public boolean hasNext(){ if ( curr ..
//item 3 from http://codemonkeyism.com/generation-java-programming-style //http://code.google.com/p/google-collections //http://blogs.warwick.ac.uk/chrismay/entry/writing_functional_java //http://codemunchies.com/2009/11/functional-java-filtering-and-ordering-with-google-collections-part-3 //http://stackoverflow.com/questions/2312849/filter-and-sort-list-using-google-collections import java.util..
import java.util.Map; import java.util.EnumMap; import java.util.EnumSet; import com.google.common.collect.Maps; //import javax.annotation.Nullable; //$ javac -cp .:./Guava/guava-r09/guava-r09.jar TestEnumMap.java //$ java -cp .:./Guava/guava-r09/guava-r09.jar TestEnumMap public class TestEnumMap { public static void main(String[] args) { EnumMapm1=EnumMapFactory.newEnumMap(CHS.class); m1.put(CH..
Failed to load JavaHL Library. These are the errors that were encountered: no libsvnjavahl-1 in java.library.path no svnjavahl-1 in java.library.path no svnjavahl in java.library.path java.library.path = .:/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java $ dpkg -l $ sudo apt-get install libsvn-java $ ls /usr/lib/jni/ libjava-access-bridge-jni.so libjava-access-bridge-jni.so..
import java.util.Random; import java.util.concurrent.CountDownLatch; class TestVolatile2 { public static void main(String[] args) { try { final int N = 128; final int M = 8 * 1024 * 1024; final int TN = 4; { finalCountDownLatchcdl=new CountDownLatch(TN); finalBadAtomicLongal=new BadAtomicLong(); Threadt1=new Thread(new Runnable() { @Override public void run() { try { for ( int i = 0; i < 2 * TN ..
class TestVolatile { public static void main(String[] args) { finalintINTERVAL_TIME=15; finalBadAtomicLongbal=new BadAtomicLong(); finalGoodAtomicLonggal=new GoodAtomicLong(); finalGoodAtomicLong2gal2=new GoodAtomicLong2(); Threadt1=new Thread(new Runnable() { @Override public void run() { try { while ( true ) { Thread.sleep(INTERVAL_TIME); bal.getAndSet(1L); gal.getAndSet(1L); gal2.getAndSet(1L..
//thread에 timeout 적용 test. timeout이 되는 것이 있고, //timeout이 되지 않고 일단 시작한 thread는 끝까지 실행하는 것이 있음 import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.List; import java.util.concurrent.Callable; import java.util.concurrent.ExecutionException; import java.util.concurrent.Executors; import java.util.concurrent.Future; import j..
//http://bobah.net/d4d/source-code/misc/thread-pool-executor-example-j2ee import java.text.SimpleDateFormat; import java.util.Date; import java.util.concurrent.ArrayBlockingQueue; import java.util.concurrent.BlockingQueue; //import java.util.concurrent.ExecutorService; //import java.util.concurrent.Executors; import java.util.concurrent.RejectedExecutionException; import java.util.concurrent.Rej..