Java Optional 和 null - 概念、设计和实践

上次更新时间：2024-11-16

课程售价: 2.9 元

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课程内容

1. Introduction to null and Optional

1. Welcome (免费)
2. Introduction (免费)
3. Null Concepts
4. Null Technicalities
5. Null Defaults
6. Null Storage
7. Null Design Considerations
8. Why Optional

2. Life Before Optional

1. Preventing Null Before Optional
2. What Other Languages Do

3. What is Java Optional

1. What is Optional
2. Optional Basics
3. When to Use It
4. When Not to Use It
5. Overuse of Optional

4. Optional Methods in Detail

1. IsPresent() and get()
2. ifPresent()
3. ifPresentOrElse()
4. isPresent() and isEmpty()
5. All the ORs
6. map()
7. flatMap()
8. filter()
9. Equality
10. Similarity to Streams
11. Streams
12. Specialized Optionals

5. Alternatives to Optional

1. Null Annotations
2. One Annotation That Is Different
3. Checker Frameworks
4. Null Object Pattern
5. Java 14 Helpful NPEs
6. Null Functions
7. Is Optional a Monad
8. Guavas Alternative to Optional
9. VAVRs Alternative to Optional
10. Palatable Lambda Alternative to Optional
11. Scala Alternative to Optional
12. Haskell Alternative to Optional
13. Kotlin Alternative to Optional
14. Dart Sound Null Safety

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Java Optional 和 null - 概念、设计和实践

Java Optional and null - Concepts, Design and Practice

上次更新时间：2024-11-16 14:12

课程售价：2.9元

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课程内容

5个章节 , 41个讲座

1. Introduction to null and Optional

1. Welcome (免费)
2. Introduction (免费)
3. Null Concepts
4. Null Technicalities
5. Null Defaults
6. Null Storage
7. Null Design Considerations
8. Why Optional

2. Life Before Optional

1. Preventing Null Before Optional
2. What Other Languages Do

3. What is Java Optional

1. What is Optional
2. Optional Basics
3. When to Use It
4. When Not to Use It
5. Overuse of Optional

4. Optional Methods in Detail

1. IsPresent() and get()
2. ifPresent()
3. ifPresentOrElse()
4. isPresent() and isEmpty()
5. All the ORs
6. map()
7. flatMap()
8. filter()
9. Equality
10. Similarity to Streams
11. Streams
12. Specialized Optionals

5. Alternatives to Optional

1. Null Annotations
2. One Annotation That Is Different
3. Checker Frameworks
4. Null Object Pattern
5. Java 14 Helpful NPEs
6. Null Functions
7. Is Optional a Monad
8. Guavas Alternative to Optional
9. VAVRs Alternative to Optional
10. Palatable Lambda Alternative to Optional
11. Scala Alternative to Optional
12. Haskell Alternative to Optional
13. Kotlin Alternative to Optional
14. Dart Sound Null Safety