Java Programming for Complete Beginners - Java 16 - Step 13 - Exploring Java New Features - Switch Expression

The video tutorial introduces switch expressions in Java, explaining their release and evolution from JDK 12 to JDK 14. It covers the features and benefits of using switch expressions over traditional switch statements, including code simplification and efficiency. The tutorial provides examples of implementing switch expressions and demonstrates handling complex logic using the yield statement. Key differences between switch statements and expressions, such as the absence of fall-through, are highlighted.

What is the main advantage of using switch expressions over switch statements?

• They require more lines of code.

• They allow for multiple cases to execute simultaneously.

• They eliminate the need for break statements.

• They can only be used with integer values.

Which Java version made switch expressions a standard feature?

• JDK 15

• JDK 14

• JDK 13

• JDK 12

In the basic switch statement example, what is the purpose of the break statement?

• To handle exceptions.

• To initialize variables.

• To prevent fall-through to subsequent cases.

• To terminate the program.

What happens if a break statement is omitted in a traditional switch statement?

• The program will crash.

• The next case will automatically execute.

• The switch statement will terminate.

• The default case will execute.

How does a switch expression differ from a switch statement in terms of syntax?

• Switch expressions use the yield keyword.

• Switch expressions require a default case.

• Switch expressions do not allow multiple cases.

• Switch expressions use semicolons after each case.

What keyword is used in switch expressions to return a value from a block of code?

• break

• yield

• return

• continue

In a switch expression, what is the role of braces when handling complex logic?

• They are used to group multiple cases.

• They allow for the use of the yield keyword.

• They replace the need for a default case.

• They are mandatory for all switch expressions.