thanks machanYou Are Welcome Friend. I will Help you as Much as I can.
I am a Learner too.I have Some more to learn too.
So I know what are the Problems a Newbie Gets. I will surely Help you.
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Java danuma bedaganna kamathi aya innawada?
- Thread starter kavindaprabhath
- Start date
don't misunderstand machan although sun produce there program as a free and open source one they earn by using other ways like publishing exams like SCJP then what will happen we teach for money.(nikan igannuwa kiyala nikan salary nogena wada karanne nane.)
ela machan mama dl karala balannam eka. thanksMachan Simple widiyata Study karanda nam Tiyana Hodama Book eka tama
Head First Java
Eka Download karala Balapan
Etakota ubata aye Me thread Eka Start Wenakota yamak Issarahata Igena gena Hitiyeki. Eka ubata Study karanda lesi wey
This book will be useful 4 java beginners...
http://www.4shared.com/document/ZBGMu8Te/Head-First-Java-2nd-edition.html
http://www.4shared.com/document/ZBGMu8Te/Head-First-Java-2nd-edition.html
Me dawas deke sahodaraya pahatha thiyana softwear tika dload karagandakoo.. Guruthuma apuwama ithuru tika kiyala dei...
JDK
http://www.java.com/en/download/index.jsp
Notepad++
http://notepad-plus.en.softonic.com/
NetBeans IDE (latest 6.9.1)
http://netbeans.org/downloads/index.html
Net beans wala complete pak eka gaththoth anagathayata hondai... Full pack eka 319MB ne... Onna ohe dl karala daanda....
Machan NetBeans lesi unata..java igena ganna nam mama recomend karanne simple text editor ekak...Notepad,notepad++ or gedit.
notepad++ and gedit(ubuntu) colours walin pennana nisa ewa hondai.
NetBEans,eclipse wage softwares use kalama danna java tikath amathaka wenawa.
Ubuntu wala Java 6 SE (JDK) eka install karaganna apt-get eken me packages install karaganna... 
Or use the Ubuntu Software Center.
Mama IDE ekata NetBeans use karanne na dan. Eclipse thama matanam honda. Ekath Ubuntu Software Center eke thiyanawa.
ela wadak.. digatama karagena yanna. math thama learning machang. refer O'REILLY: HEAD FIRST JAVA as a secondary book apart from your lecturer's note.
Or use the Ubuntu Software Center.
Mama IDE ekata NetBeans use karanne na dan. Eclipse thama matanam honda. Ekath Ubuntu Software Center eke thiyanawa.
ela wadak.. digatama karagena yanna. math thama learning machang. refer O'REILLY: HEAD FIRST JAVA as a secondary book apart from your lecturer's note.
/*
FileName: ATEST16.java
The output of this example is as follows:
Entered the testcase
Synchronize to prevent access to shared data
Create/start the thread
Thread Thread-1: Entered
Thread Thread-2: Entered
Wait a bit until we're 'done' with the shared data
Thread Thread-3: Entered
Unlock shared data
Thread Thread-1: Start critical section, in synchronized block
Thread Thread-1: End critical section, leave synchronized block
Thread Thread-2: Start critical section, in synchronized block
Thread Thread-2: End critical section, leave synchronized block
Thread Thread-3: Start critical section, in synchronized block
Thread Thread-3: End critical section, leave synchronized block
Wait for the threads to complete
Testcase completed
*/
import java.lang.*;
public class ATEST16 {
public final static int NUMTHREADS = 3;
public static int sharedData = 0;
public static int sharedData2 = 0;
/* Any real java object or array would suit for synchronization */
/* We invent one here since we have two unique data items to synchronize */
/* An in this simple example, they're not in an object */
static class theLock extends Object {
}
static public theLock lockObject = new theLock();
static class theThread extends Thread {
public void run() {
System.out.print("Thread " + getName() + ": Entered\n");
synchronized (lockObject) {
/********** Critical Section *******************/
System.out.print("Thread " + getName() +
": Start critical section, in synchronized block\n");
++sharedData; --sharedData2;
System.out.print("Thread " + getName() +
": End critical section, leave synchronized block\n");
/********** Critical Section *******************/
}
}
}
public static void main(String argv[]) {
theThread threads[] = new theThread[NUMTHREADS];
System.out.print("Entered the testcase\n");
System.out.print("Synchronize to prevent access to shared data\n");
synchronized (lockObject) {
System.out.print("Create/start the thread\n");
for (int i=0; i<NUMTHREADS; ++i) {
threads = new theThread();
threads.start();
}
System.out.print("Wait a bit until we're 'done' with the shared data\n");
try {
Thread.sleep(3000);
}
catch (InterruptedException e) {
System.out.print("sleep interrupted\n");
}
System.out.print("Unlock shared data\n");
}
System.out.print("Wait for the threads to complete\n");
for(int i=0; i <NUMTHREADS; ++i) {
threads.join();
}
catch (InterruptedException e) {
System.out.print("Join interrupted\n");
}
}
System.out.print("Testcase completed\n");
System.exit(0);
}
}
FileName: ATEST16.java
The output of this example is as follows:
Entered the testcase
Synchronize to prevent access to shared data
Create/start the thread
Thread Thread-1: Entered
Thread Thread-2: Entered
Wait a bit until we're 'done' with the shared data
Thread Thread-3: Entered
Unlock shared data
Thread Thread-1: Start critical section, in synchronized block
Thread Thread-1: End critical section, leave synchronized block
Thread Thread-2: Start critical section, in synchronized block
Thread Thread-2: End critical section, leave synchronized block
Thread Thread-3: Start critical section, in synchronized block
Thread Thread-3: End critical section, leave synchronized block
Wait for the threads to complete
Testcase completed
*/
import java.lang.*;
public class ATEST16 {
public final static int NUMTHREADS = 3;
public static int sharedData = 0;
public static int sharedData2 = 0;
/* Any real java object or array would suit for synchronization */
/* We invent one here since we have two unique data items to synchronize */
/* An in this simple example, they're not in an object */
static class theLock extends Object {
}
static public theLock lockObject = new theLock();
static class theThread extends Thread {
public void run() {
System.out.print("Thread " + getName() + ": Entered\n");
synchronized (lockObject) {
/********** Critical Section *******************/
System.out.print("Thread " + getName() +
": Start critical section, in synchronized block\n");
++sharedData; --sharedData2;
System.out.print("Thread " + getName() +
": End critical section, leave synchronized block\n");
/********** Critical Section *******************/
}
}
}
public static void main(String argv[]) {
theThread threads[] = new theThread[NUMTHREADS];
System.out.print("Entered the testcase\n");
System.out.print("Synchronize to prevent access to shared data\n");
synchronized (lockObject) {
System.out.print("Create/start the thread\n");
for (int i=0; i<NUMTHREADS; ++i) {
threads = new theThread();
threads.start();
}
System.out.print("Wait a bit until we're 'done' with the shared data\n");
try {
Thread.sleep(3000);
}
catch (InterruptedException e) {
System.out.print("sleep interrupted\n");
}
System.out.print("Unlock shared data\n");
}
System.out.print("Wait for the threads to complete\n");
for(int i=0; i <NUMTHREADS; ++i) {
threads.join();
}
catch (InterruptedException e) {
System.out.print("Join interrupted\n");
}
}
System.out.print("Testcase completed\n");
System.exit(0);
}
}
