Page 167 - CTS - CSA TP - Volume 2

COMPUTER SOFTWARE APPLICATION - CITS

EXERCISE 105 : Test multithreading with and without

synchronization

Objectives

At the end of this exercise you shall be able to
• know the multithreading with and without synchronization
• develop Java programs using multithreading with and without synchronization.

Requirements

Tools/Materials
• PC / laptop with windows OS
• SDK software
• Test editor (Visual studio/ subline/ notepad)

Procedure

//multithreading with and without synchronization
class CounterWithSync {
private int count = 0;

public synchronized void increment() {
for (int i = 0; i < 5; i++) {
int currentValue = count;
System.out.println(Thread.currentThread().getName() + “ - Before Increment: “ + currentValue);

count = currentValue + 1;
System.out.println(Thread.currentThread().getName() + “ - After Increment: “ + count);
}
}

}
class IncrementThreadWithSync extends Thread {
private CounterWithSync counter;
public IncrementThreadWithSync(CounterWithSync counter) {
this.counter = counter;
}

public void run() {
counter.increment();
}
}

public class MultithreadingWithSyncExample {
public static void main(String[] args) {

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