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A Synchronized method provides a guarantee that the method is the only synchronized method in the object running at the time.
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| 2 |
This is useful if the resource is contained completely in the object, and in general, no waiting for a resource is necessary. (The operation is contained completely in the method)
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public synchronized void do_it() {
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| 3 |
More fine-grained synchronization can be obtained by synchronizing on the particular object:
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Object obj;
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public void do_it() {
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synchronized(obj) {
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... change the state of obj ..}
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... do other time-consuming stuff ..}
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