Join Todd Perkins for an in-depth discussion in this video Understanding conditional statements, part of Programming for Non-Programmers: iOS 8.
- The next building block for programming…is called conditional statements.…What are conditional statements?…Conditional statements are "if, then" statements.…So if a certain condition that's evaluated…as true or false turns out to be true,…then a line or section of code can be executed.…You can think of it kind of like a mini-function…that only runs based on whether…the condition is true or false.…In code, conditional statements start with "if,"…and then the condition in parenthesis.…
The condition, again, is evaluated as true or false.…The section of code to execute if the condition…is true is placed in curly braces.…An "if" statement can optionally be followed…by an "else" statement which only runs…if the condition is evaluated as false.…Let's look at a condition in code.…So here we have a very simple "if" statement:…if one is greater than three.…Now, if that statement is evaluated as true,…then the code inside of the curly braces…right below "if" will run.…
Of course, one is not greater than three,…so the "else" statement will run in this example.…
If you find you'd like to learn more, see iOS App Development Essential Training, Foundations of Programming: Fundamentals, or any of the other programming courses in our library.
- Installing Xcode
- Creating an Xcode project
- Configuring the iOS Simulator
- Understanding variables
- Connecting visual objects to variables
- Understanding functions, methods, and selectors
- Connecting a button to a method
- Using conditional statements
- Setting up the user interface
- Connecting code elements to build an app
Skill Level Beginner
1. Setting Up Your Coding Environment
Creating an Xcode project3m 38s
2. Programming Building Blocks: Variables
3. Programming Building Blocks: Functions
4. Programming Building Blocks: Conditional Statements
Using conditional statements4m 11s
5. Building Your First Full Application
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