What are new features of Java 8 #interviewQuestion

New Features in Java 8

Java 8 introduced several significant features:

Lambda Expressions

Syntax: Lambda expressions enable functional programming.
Example:

List<String> names = Arrays.asList(“Alice”, “Bob”, “Charlie”);
…


This content originally appeared on DEV Community and was authored by Manish Thakurani

New Features in Java 8

Java 8 introduced several significant features:

  1. Lambda Expressions
    • Syntax: Lambda expressions enable functional programming.
    • Example: 
List<String> names = Arrays.asList("Alice", "Bob", "Charlie");
names.forEach(name -> System.out.println(name));
  1. Stream API
    • Functional Operations: Stream API facilitates processing collections with functional-style operations.
    • Example: 
List<String> names = Arrays.asList("Alice", "Bob", "Charlie");
long count = names.stream().filter(name -> name.startsWith("A")).count();
  1. Date and Time API
    • Improved API: Provides a comprehensive set of classes for date and time manipulation.
    • Example: 
LocalDate today = LocalDate.now();
LocalDateTime dateTime = LocalDateTime.of(today, LocalTime.of(14, 30));
  1. Default Methods in Interfaces
    • Interface Evolution: Allows adding methods to interfaces without breaking existing implementations.
    • Example: 
public interface MyInterface {
default void defaultMethod() {
    System.out.println("Default method implementation");
    }
}
  1. Optional Class
    • Null Handling: Encourages explicit handling of nullable values to avoid NullPointerException\.
    • Example: 
Optional<String> optionalName = Optional.ofNullable(name);
optionalName.ifPresent(System.out::println);

Java 8's features promote cleaner code, improved performance, and better support for modern programming paradigms.


This content originally appeared on DEV Community and was authored by Manish Thakurani


Print Share Comment Cite Upload Translate Updates
APA

Manish Thakurani | Sciencx (2024-07-04T14:46:55+00:00) What are new features of Java 8 #interviewQuestion. Retrieved from https://www.scien.cx/2024/07/04/what-are-new-features-of-java-8-interviewquestion/

MLA
" » What are new features of Java 8 #interviewQuestion." Manish Thakurani | Sciencx - Thursday July 4, 2024, https://www.scien.cx/2024/07/04/what-are-new-features-of-java-8-interviewquestion/
HARVARD
Manish Thakurani | Sciencx Thursday July 4, 2024 » What are new features of Java 8 #interviewQuestion., viewed ,<https://www.scien.cx/2024/07/04/what-are-new-features-of-java-8-interviewquestion/>
VANCOUVER
Manish Thakurani | Sciencx - » What are new features of Java 8 #interviewQuestion. [Internet]. [Accessed ]. Available from: https://www.scien.cx/2024/07/04/what-are-new-features-of-java-8-interviewquestion/
CHICAGO
" » What are new features of Java 8 #interviewQuestion." Manish Thakurani | Sciencx - Accessed . https://www.scien.cx/2024/07/04/what-are-new-features-of-java-8-interviewquestion/
IEEE
" » What are new features of Java 8 #interviewQuestion." Manish Thakurani | Sciencx [Online]. Available: https://www.scien.cx/2024/07/04/what-are-new-features-of-java-8-interviewquestion/. [Accessed: ]
rf:citation
» What are new features of Java 8 #interviewQuestion | Manish Thakurani | Sciencx | https://www.scien.cx/2024/07/04/what-are-new-features-of-java-8-interviewquestion/ |

Please log in to upload a file.



There are no updates yet.
Click the Upload button above to add an update.

You must be logged in to translate posts. Please log in or register.

Related Posts