Join Todd Perkins for an in-depth discussion in this video Conditional statements, part of Learning Java Applications (2016).
- Our next Java element to review…is conditional statements.…A conditional statement evaluates an expression…as true or false…and enables you to run code if it's true…or if it's not true.…Let's look at how they work in Java.…I'm going to write if and some paranthesis…and some curly braces.…Inside of the paranthesis…I'm going to type 1 and two equal signs 1.…Remember that in programming…two equal signs means 'is equal to'.…It's a comparison operator.…
It's comparing what's on the left to what's on the right.…A single equal sign is for setting a value.…So if 1 is equal to 1…then the statement inside of these curly braces…is going to be executed.…So I'm going to print that out.…System.out.printline…and the line is going to be 'statement is true'.…So I'll run the application…in the output window I see 'statement is true'…because indeed 1 is equal to 1…it's the same number.…
So what if we wanted to run something…if the statement is false?…Well we can add an 'else' statement underneath that.…So I'm going to copy and paste…
- Installing Java and Eclipse
- Understanding basic Java syntax
- Handling Java errors
- Creating a UI with Swing
- Creating tables and connecting to data sources for tables
- Publishing a JAR file
- Installing NetBeans
- Creating JSP pages
- Setting up and connecting to databases
- Creating Java-based Android Studio projects
Skill Level Beginner
1. Install Java and an IDE
2. Java Basics Review
3. Create a User Interface with Swing
4. Tables and Data Sources
5. Application Distribution and Deployment
Publish a runnable JAR file2m 32s
6. Server-Side Java: JSP and Databases
7. Android Development
Next steps1m 16s
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