Category: Core Java

Java does not have destructors; but it has finalizers that does a similar job. Garbage collector does the job working in the background Here is the syntax public void finalize(){ } if an object...

Recursive Methods What is Recursive Function? A recursive function is a function that calls itself during its execution. This enables the function to repeat itself several times, outputting the result and the end of...

Overloading vs Overriding A Way of Implementing Polymorphism Overloading Overloading refers to having more than one method with the same name in a class whereas overriding refers to redefining methods of the superclass in...

Java Serialization Vs De-Serialization The capability of an object to exist beyond the execution of the program that created it is known as persistence To make the file object persistent, the file object has...

Java Serialization Vs De-Serialization The capability of an object to exist beyond the execution of the program that created it is known as persistence To make the file object persistent, the file object has...

Java Call By Value and Call By Reference Pass by value in java means passing a copy of the value to be passed. Pass by reference in java means the passing the address itself....

difference between Abstract Class and Interface? 1. Main difference is methods of a Java interface are implicitly abstract and cannot have implementations. A Java abstract class can have instance methods that implements a default...

Transient variable can’t be serialize. For example if a variable is declared as transient in a Serializable class and the class is written to an ObjectStream, the value of the variable can’t be written...

Java SE 7 Download JDK 7 Java 7 (codename Dolphin) is a major update that was launched on July 7, 2011 and was made available for developers on July 28, 2011. The development period...