Introduction of Effective Java

• Need of Effective Java
• Understanding the importance of following the best practices

Creating and Destroying objects

• Static factory methods vs. constructors
• Singleton pattern and its variations
• Proper use of finalizers and cleaners
• Managing resources with try-with-resources

Methods and General Programming

• Method design and documentation
• Method parameter validation
• Overloading vs. overriding
• Designing and implementing immutable classes

Classes and Interfaces

• Minimizing mutability and enforcing immutability
• Composition vs. inheritance
• Choosing appropriate class and member visibility
• Implementing interfaces judiciously

Generics

• Proper use of generics in collections and APIs
• Understanding type erasure and its implications
• Wildcards and bounded types
• Using generic methods and type inference

Enums and Annotations

• Enum types and best practices for using them
• Effective use of annotations and their benefits
• Custom annotations and their use cases

Lambdas and Streams

• Functional programming concepts in Java
• Effective use of lambda expressions
• Stream API and stream processing techniques
• Parallel streams and performance considerations

Exceptions

• Using exceptions for exceptional conditions
• Checked vs. unchecked exceptions
• Proper exception handling and propagation
• Designing custom exception classes

Concurrency

• Thread safety and synchronization techniques
• Effective use of concurrent collections
• Avoiding race conditions and deadlock
• Best practices for writing concurrent code

Serialization and Security

• Serialization and deserialization best practices
• Externalizable vs. Serializable
• Security considerations in Java programming

Performance and Optimization

• Measuring performance and identifying bottlenecks
• Techniques for writing high-performance code
• Effective memory management
• Microbenchmarking and profiling tools

Java Platform Best Practices

• Best practices for Java SE, Java EE, and Java ME
• Java 8+ features and their effective use
• Upgrading and migrating legacy code