Workbook 13.1
From the Java Bootcamp Resources, launch starter.
Task 1
Use forEach to iterate the ArrayList and print the following messages.
System.out.println("Date: " + p.getDate().format(DateTimeFormatter.ofPattern("dd/MM/yyyy"))); System.out.println("Amount: " + p.getAmount()); System.out.println("---");
Consider that forEach relies on a Consumer to perform its task.
| Functional Interface | Example |
|---|---|
| Consumer | x -> { code } |
| Predicate | x -> { return boolean } |
| Function | x -> { return value } |
| BiConsumer | (x, y) -> { code } |
| Comparator | (x, y) -> { return int } |
| BinaryOperator | (x, y) -> { return value (same type) } |
Expected Output
Date: 01/01/2020
Amount: 100.0
---
Date: 15/02/2020
Amount: 200.0
---
Date: 30/03/2020
Amount: 300.0
---
Date: 01/04/2020
Amount: 50.0
---
Date: 15/05/2020
Amount: 75.0
---
Date: 30/06/2020
Amount: 100.0
---Associated Course: The Complete Java Development Bootcamp
Related Course: The Complete Spring Boot Development Bootcamp – Become a Java Web Developer
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