44 lines
867 B
Java
44 lines
867 B
Java
|
|
||
|
|
class Incrementer{
|
||
|
|
int count;
|
||
|
|
Incrementer(int cnt)
|
||
|
|
{
|
||
|
|
count=cnt;
|
||
|
|
}
|
||
|
|
synchronized void increment()
|
||
|
|
{
|
||
|
|
count++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
class IncrementThread extends Thread{
|
||
|
|
Incrementer ref;
|
||
|
|
IncrementThread(Incrementer obj)
|
||
|
|
{
|
||
|
|
ref=obj;
|
||
|
|
}
|
||
|
|
public void run()
|
||
|
|
{
|
||
|
|
for(int i=0;i<10000;i++)
|
||
|
|
{
|
||
|
|
ref.increment();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
class syncMethod{
|
||
|
|
public static void main(String[] args) {
|
||
|
|
Incrementer inc=new Incrementer(0);
|
||
|
|
IncrementThread t1=new IncrementThread(inc);
|
||
|
|
IncrementThread t2=new IncrementThread(inc);
|
||
|
|
t1.start();
|
||
|
|
t2.start();
|
||
|
|
try {
|
||
|
|
t1.join();
|
||
|
|
t2.join();
|
||
|
|
} catch (InterruptedException e) {
|
||
|
|
System.out.println(e.toString());
|
||
|
|
}
|
||
|
|
System.out.println(inc.count);
|
||
|
|
}
|
||
|
|
}
|