Here you will see a page like sshot. Here you can enter your app name and package name.
Then click create create
You will see a page like sshot below. Now you can click on the design icon above.

See Hello world. Now click on this Hello world text and see Delete. Click here to delete Hello world. Then press the back button and come back to the back.
Follow sshot

Now, in this linear layout, we will have WebView enabled. For this, take a look at the below sshot and mark the signed code.

You can also enter any name with the name of the ID without the web in the above code.
Now you go to MainActivity.java file by following the following sshot.

Now enter the marking code by looking at the following sshot.

We have to say that WebView is a little add on main.xml here. And for that first enter private then WebView then web; That is, WebView's ID name. (Enter the ID name that you gave me) I've given the web so I write the web. Then write the rest of the code.
Now our app has to give Internet permission. And follow the sshot for it.

Click on 3 dot and open the AndroidManifest.xml file from the src folder.

Click on 3 dot and open the AndroidManifest.xml file from the src folder....
Diameter work is done. Now save everything.
follow sshot