I am XML don't forget me.

I am XML don't forget me.

We already discussed about kotlin but now we are going to familiar with xml.

In Android software development there are two important things.

Front-end  The user interface (UI) which is visible to user or through which user interect is known as front end. Xml (eXtensible Markup Language) is used to design front end of application. Tags are used in xml to design front end. There are opening as well as closing tags. Once you open or used any tags, you also need to close it. There are two ways to closing tags. In between open body tag such as

<tag

.................

.................

   />

If you want to add any child tags in between parent tags, you can also do this.

<tag>

..........

.........

<tag2

..........

.........

</tag2>

..........

..........

</tag>

Back-end  It is heart of application. It is used to add functionality in application. For example if you want to create an application which is used  to add two numbers. The logic(code) addition  of two number written in back end using any language(cpp, java, kotlin etc).