Synchronized block vs. synchronized method

Synchronized block vs. synchronized method.

Synchronized block is better since it places locks for shorter periods than synchronized methods.
Explain how to force garbage collection
Explain how to force garbage collection - Garbage collection can't be forced, it can explicitly be called using System.gc(), but there is not guarantee....
Difference between the methods sleep() and wait()
Difference between the methods sleep() and wait() - wait() is defined in the class Object and sleep() is defined in the class Thread...
Java - Constructors vs. regular methods
Constructors vs. regular methods - Constructors have same name as the class and can not return a value...
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