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Java Varargs refer to Variable Arguments. Java Varargs are applicable only for Constructors and Methods. Let us know more in this Last Minute Java Tutorial.

Java command line arguments are nothing but the data passed to the Main method of a Java Class at the time of running the Java Program.

Java programming language supports Recursion. Recursion is a process of calling the same method from within the method.

Java Method Overloading is nothing but the ability to write more than one Method with the same name in a Class with varying Return-Types or Parameters.

All Java classes contain a Constructor. Even if we do not create a constructor, the compiler creates a default constructor for us. A Constructor's name is the same as the Class name.

A Java Class consists of a number of Methods. These methods help us in Code Reuse. These methods are similar to the Functions in C language. Let us know more about Java Method Signature, Naming convention and usage.

In Java, we create Classes. We create objects of the Classes. Let us know if is possible to assign Java Objects from one variable to another variable by value or reference in this Last Minute Java Tutorial.

A Java program consists of a CLASS with some Code and Data. Code is also called Method(s). Data is also called Variable(s). Java is an Object-Oriented Language. Let us know more about Java Class Structure and Syntax in this Last Minute Tutorial.

Most of the Android Apps are free with either Bottom-Bar ads or Top-Bar ads. Top-Bar is also called a Header. Bottom-Bar is called a Footer. The place or space in between is called the Body.

Each Android Activity has a toolbar or Action Bar. On the Home screen, we may not see or need a Back-Button. But, on inner activities or screens, we need to show Back-Button arrow or Up button at the top-left position.