Lambda Expressions in Java

Lambda expressions can simplify your code, making it easier to read and write functional interfaces.

Source Code

interface StringFunction {
    String run(String str);
}
public class Main {
    public static void main(String[] args) {
        StringFunction exclaim = (s) -> s + "!";
        StringFunction ask = (s) -> s + "?";
        System.out.println(exclaim.run("Hello"));
        System.out.println(ask.run("Hello"));
    }
}