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Describe, in general, how java garbage collector works?
Why there is a need to use primary key in database ? Primary key is a constraint basically used in datdabase to uniquely identify the records in the database.
Explain the Order of Evaluation of Logic Operators ? When Java sees a && operator or a ||, the expression on the left side of the operator is evaluated first. For instance, con
What is difference between time slicing and preemptive scheduling? Differences between preemptive and time scheduling are: In case of Preemptive scheduling the highest prior
Name Conflicts when importing packages It is possible which you will try to import a package which contains classes in which have the similar name as a class in your own source
Why do we call JavaScript an Object-based Language? In java language an JavaScript shares several similarities with object-oriented languages, and thus is known as an object-ba
Inheritance - is the inclusion of state and behavior of a base class in a derived class so that they are accessible in that derived class. The key benefit of Inheritance is that
Explain Testing for Equality with equals? That's not what you expected. To contrast strings or any other kind of object you required to use the equals(Object o) techniques from
Ask question #MBookshelves A library decides buy bookshelves to store its books and they need to determine the bookshelves’ heights and widths in order to minimize storage costs. T
Platform independence is the key feature of Java during runtime. Syntax of java is same to the popular object oriented languages such as C and C++. Java program can eliminate most
Socket and ServerSocket. ServerSocket is used for normal two-way socket communication. Socket class permits us to read and write by the sockets. getInputStream() and getOutputStrea
The Java runtime environment removes objects when it determines that they are no longer being used. This method is known as garbage collection. Java runtime environment supports a garbage collector that at regular intervals release the memory used by objects that are no longer required. The Java garbage collector is a mark-sweep garbage collector that scans Java''s dynamic memory areas for objects, mark those that are referenced. After all possible ways to objects are investigated; those objects that are not marked are known to be garbage and are collected.
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