Technology Questions

The function declaration should be preceded by the keyword friend.The function definitions does not use either the keyword or the scope operator :: The functions that are declared with the keyword friend as friend function.Thus, a friend function is an ordinary function or a member of another class.

The throughput garbage collector uses a parallel version of the young generation collector and is meant to be used with applications that have medium to large data sets. On the other hand, the serial collector is usually adequate for most small applications (those requiring heaps of up to approximately 100MB on modern processors).

True .That event occurs whenever a new user visits

There are three ways that can be used in order for a Thread to be created:

A class may extend the Thread class.

A class may implement the Runnable interface.

An application can use the Executor framework, in order to create a thread pool.

The Runnable interface is preferred, as it does not require an object to inherit the Thread class. In case your application design requires multiple inheritance, only interfaces can help you. Also, the thread pool is very efficient and can be implemented and used very easily.

ANALYZE command is used to perform various functions on index, table, or cluster, as listed below:
- It helps in dentifying migrated and chained rows of the table or cluster.
- It helps in validating the structure of the object.
- It helps in collecting the statistics about object used by the optimizer. They are then stored in the data dictionary.
- It helps in deleting statistics used by object from the data dictionary.

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