Java Functional Programming with Lambda Expression and Stream API syllabus

1 Introduction to Functional Programming

• Understanding functional programming paradigms

• Contrasting functional programming with imperative programming

• Advantages of functional programming in Java

2 Introduction to Lambda Expressions

• Syntax and structure of lambda expressions

• Functional interfaces

• Lambda expression examples

• Type inference with lambda expressions

3 Functional Interfaces

• Understanding functional interfaces

• java.util.function package overview

• Common functional interfaces (e.g., Predicate, Consumer, Function, Supplier)

4 Working with Lambda Expressions

• Lambda expressions with collections (List, Map, Set)

• Sorting collections using lambda expressions

• Filtering collections using predicates

• Mapping and reducing data with lambda expressions

5 Introduction to Stream API

• Overview of Stream API

• Creating streams from collections

• Intermediate and terminal operations

• Stream pipeline and lazy evaluation

6 Intermediate Stream Operations

• Mapping elements in a stream

• Filtering elements in a stream

• Sorting elements in a stream

• Distinct and limit operations

7 Terminal Stream Operations

• forEach

• reduce

• collect

• findFirst, findAny

• anyMatch, allMatch, noneMatch

8 Optional Class

• Introduction to Optional class

• Avoiding NullPointerException with Optional

• Using Optional with Stream API

9 Advanced Stream Concepts

• Parallel streams

• Stream performance considerations

• Stream best practices and guidelines

• Custom collectors

10 Functional Programming Patterns

• Function composition

• Method references

• Partial application and currying

11 Exception Handling in Streams

• Dealing with checked exceptions

• Custom exception handling in streams

• Exception handling best practices

12 Integration with Existing APIs

• Integration with JDBC using Stream API

• Integration with I/O operations using Stream API