Java 11 features

 Language Enhancements:

var in Lambda Expressions: Java 11 allows the use of var keyword for local variable type inference in lambda expressions, improving readability and consistency. 

Java

    list.forEach((var item) -> System.out.println(item)); // Example

2. New APIs:

String::isBlank(): Checks if a string is empty or contains only whitespace characters. 

Java

    String str = "   ";
    System.out.println(str.isBlank()); // true

String::strip(): Removes leading and trailing whitespace, handling Unicode characters correctly. 

Java

    String str = "  hello  ";
    System.out.println(str.strip()); // "hello"

String::lines(): Returns a stream of lines from a string. 
Files::readString(): Reads the entire content of a file into a string. 
HttpClient: A new, asynchronous, and non-blocking HTTP client API supporting HTTP/1.1 and HTTP/2. 
Predicate::not(): A static method that negates a predicate. 

Java

    Predicate<String> notEmpty = String::isEmpty;
    Predicate<String> notEmptyNegated = Predicate.not(String::isEmpty);

New toArray method: A new toArray method in the Collection interface that takes an IntFunction argument for more convenient array creation.