LinkedIn principal author Doug Winnie explains how programs and programmers work with user input. Users can input information into programs in many ways, including keyboards, multi-touch, mouse, cameras, voice, and other sensors that are part of the hardware and software of the device. To use input, your program must listen for the input from the user in order to recognize the input and perform actions based on it.
- It is entirely possible to create programs…that run on their own with no input from users,…but most programs require a user to provide…some input, even if it's a simple tap.…Capturing input from users can come in many forms,…but it generally requires two things.…The first is that the app needs…to be listening for the user.…It needs to know to be on the lookout…for the user to do something.…It's like shouting in the woods, if no one is there…to listen, what you say isn't communicated.…
With user events like providing input,…the same has to happen.…User interaction can take many forms.…A keyboard is used to enter text and numbers…into a program to create new data…that is managed by the program.…Certain keys or key combinations…can initiate certain functions in a program.…A mouse is used to point and select items…in a graphical user interface.…Mouse gestures such as dragging and dropping…manipulate objects on the screen.…
In addition, the path of the mouse…can be used to draw and perform actions…based on the shapes that are created.…
Author
Doug Winnie
Released
11/28/2016Join Doug Winnie as he explains the principles of programming and helps you connect to core concepts by exploring three ways that programmers perform their jobs. Doug starts by sharing the history of coding and then dives into functions, values, variables, and parameters used to define actions. He covers capturing input from users, creating conditional tests, using loops with arrays, and object-oriented programming basics. He also takes you beyond programming, into processes like debugging, refactoring, and building iteratively.
- Working with values and variables
- Breaking down tasks
- Customizing functions and parameters
- Building conditional tests
- Creating and changing arrays
- Working with objects and classes
- Debugging and refactoring code
- Going beyond the code as a programmer
Skill Level Beginner
Duration
Views
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Introduction
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Welcome1m 40s
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What you should know1m 3s
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1. Control Computers with Code
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History of programming2m 9s
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Forms of programming5m 12s
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2. Define Actions Using Code
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Break down tasks2m 29s
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Variables and scope2m 9s
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Return values from functions2m 15s
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Work with an API1m 27s
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3. Repeat Actions and Test for Conditions
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Capture input from the user3m 31s
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Create conditional tests4m 39s
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Use while loops2m 11s
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Use for loops3m 11s
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Use loops with arrays2m 5s
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4. Objects and OOP
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Everything is an object2m 21s
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Everything is a class4m 3s
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Extend classes2m 7s
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5. Beyond Programming
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Debug problems2m 50s
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Conclusion
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Next steps1m 19s
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Video: Capture input from the user