The clear() method of AbstractSet in Java is used to remove all the elements from a set. The set will be empty after this call returns.
public void clear()
Parameters: This function has no parameters.
Returns: The method does not return any value. It removes all the elements in the set and makes it empty.
Below examples illustrates the AbstractSet.clear() method:
The set initially: [1, 2, 3, 4] The set after using clear() method: 
The set initially: [For, ForGeeks, Geeks, GeeksForGeeks] The set after using clear() method: 
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