Introduction

Recyclerview class extends the ViewGroup class and implements scrollingView interface. It is an advanced version of the listview. It is an improvement to both listview and gridview and can be found in the latest v-7 support packages . This improvement is achieved by recycling the views which are out of the visibility of the user and as such minimizing memory usage. For example, if a user scrolled down in an app’s screen with list of items rendered using recyclerview to a position where items 4 and 5 are the only visible items on the user’s screen at that point in…

As we know, a program consists of lists of instructions. Control structures are programming block that can change the path we take through those instructions or not. It is a syntactic form in a programming language to express flow of control.

In java and also in every other programming language there are three basic control structures:

• Sequence Structure
• Repetition Structure
• Selection Structure

Sequence Structure

This involves the sequential execution of java statements one after the other in the order in which they are written inside the source code — much like reading a recipe for preparing a food or a book. They…