Java instanceof In Java, instanceof is a keyword used for checking if a reference variable contains a given type of object reference or not(class or subclass or interface).It is known as a comparison operator where the instance is getting compared to type returning boolean true or false as in Java we do not have 0 […]
Number series in which next number is the sum of previous two numbers is called Fibonacci Series Example : 0, 1, 1, 2, 3, 5, 8, 13, etc. Fibonacci Series in Java can be written in following two ways : 1) Without Recursion2) With Recursion Following two programmes illustrate Fibonacci Series Using Recursion & without
Java Method Method in Java is a block of code which is used to execute specific tasks for which it is written and return the result to the caller.A Java method can perform some specific task without returning anything.It is used for code reusability and also increases code readability. It also allows to break program
Java Naming Convention Java naming convention is a set of rule to follow to name the identifiers such as class,variable,package,constant, method, etc. Java follows CamelCase naming convention for writing names of methods, variables, classes, packages, and constants.It consists of compound words or phrases such that each word or abbreviation begins with a capital letter or
Java Keywords Java keywords are the reserved words which have a predefined meaning to the Java compiler. These predefined words cannot be used as a variable or object name or class name and if we use it we will get a compile error. List of Java Keywords : abstract: It is used to declare an
Access Modifiers In Java defines the scope of data member,variable,method class or constructor specifing security, accessibility of those elements based on access modifiers used. Four types of Access Modifiers in Java are Private,Default,Protected and Public Private: Access of a private modifier is only within the class and cannot be accessed from outside the class. Default:
Inheritance in Java is a process in which sub class inherits all the properties of super class(parent class).
In Java, garbage collection is a process of providing Automatic Memory Management by reclaiming the runtime unused memory automatically which destroy unused objects.
Static keyword belongs to class than an object(instance of class) and is used for memory management
