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//: concurrency/SyncObject.java

// Synchronizing on another object.

import static net.mindview.util.Print.*;

class DualSynch {

private Object syncObject = new Object();

public synchronized void f() {

for(int i = 0; i < 5; i++) {

print("f()");

Thread.yield();

}

}

public void g() {

synchronized(syncObject) {

for(int i = 0; i < 5; i++) {

print("g()");

Thread.yield();

}

}

}

}

public class SyncObject {

public static void main(String[] args) {

final DualSynch ds = new DualSynch();

new Thread() {

public void run() {

ds.f();

}

}.start();

ds.g();

}

} /* Output: (Sample)

g()

f()

g()

f()

g()

f()

g()

f()

g()

f()

*///:~