Class
Object
(java.lang.Object) is the root of the class hierarchy. Every class has Object
as a superclass. All objects, including arrays, implement the methods of this class.Method Summary
Modifier and Type | Method and Description |
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protected Object | clone()
Creates and returns a copy of this object.
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boolean | equals(Object obj)
Indicates whether some other object is "equal to" this one.
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protected void | finalize()
Called by the garbage collector on an object when garbage
collection determines that there are no more references to the
object.
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Class<?> | getClass()
Returns the runtime class of this
Object . |
int | hashCode()
Returns a hash code value for the object.
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void | notify()
Wakes up a single thread that is waiting on this object's
monitor.
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void | notifyAll()
Wakes up all threads that are waiting on this object's monitor.
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String | toString()
Returns a string representation of the object.
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void | wait()
Causes the current thread to wait until another thread invokes
the
notify() method or the notifyAll() method for
this object.
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void | wait(long timeout)
Causes the current thread to wait until either another thread
invokes the
notify() method or the notifyAll()
method for this object, or a specified amount of time has
elapsed.
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void | wait(long timeout, int nanos)
Causes the current thread to wait until another thread invokes
the
notify() method or the notifyAll() method
for this object, or some other thread interrupts the current
thread, or a certain amount of real time has elapsed.
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