Please follow the below screen-shots to create the twitter application 

1. Open a Browser and go to the below URL:



2. Under Developers click on the Documentation.

3. Click on Manage My Apps on left side of twitter page.

4. Then click on “Create New App”

5. Create new application by click on the Create New App

6. Then enter the details for the application, click on the check box for the yes and agree and click on the create new application.