exception handling try-catch custom exceptions error handling exception logging graceful degradation

Java Serialization Object Serialization Java IO Serializable Interface Java Byte Stream

transient PHP serialization class properties object-oriented programming

checked exceptions unchecked exceptions Java exceptions exception handling in Java

Immutable Class Java Final Class Data Integrity Object-Oriented Programming

Java immutability thread-safety performance immutable objects string concurrent programming

Java Records Java 15 Data Classes Data Modeling Immutable Data Structures

Java 14 Pattern Matching instanceof type checking casting code readability

Text Blocks Java 13 Multiline Strings Java Features Code Readability

Java 11 single file program simplified development fast compilation code portability

Java 10 var keyword local variables type inference

Java 9 private methods interfaces default methods code reuse

JShell Java 9 interactive tool code snippets Java programming

Stream API Java 9 improvements collection library programming

Java Platform Module System JPMS Java 9 modular programming code organization module boundaries encapsulation application structure

CompletableFutures asynchronous programming non-blocking code Java concurrent tasks I/O operations long-running computations

method references Java lambda expressions functional interface static method reference example

Java 8 Date and Time API java.time LocalDate LocalDateTime DateTimeFormatter time zones immutable classes duration period

Collectors Stream API Java collections functional programming data processing

Java 8 Optional NullPointerException Functional Programming Absent Values Container Object