Difference between revisions of "Kava Lambda Expressions"
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+ | Reference - https://www.freecodecamp.org/news/learn-these-4-things-and-working-with-lambda-expressions-b0ab36e0fffc/<br> | ||
Functional Interface<br> | Functional Interface<br> | ||
<source lang="java"> | <source lang="java"> |
Latest revision as of 21:00, 10 April 2020
Reference - https://www.freecodecamp.org/news/learn-these-4-things-and-working-with-lambda-expressions-b0ab36e0fffc/
Functional Interface
interface MyName{ String computeName(String str); }
Example1 - Numeric Test
interface NumericTest { boolean computeTest(int n); } public static void main(String args[]) { NumericTest isEven = (n) -> (n % 2) == 0; NumericTest isNegative = (n) -> (n < 0); // Output: false System.out.println(isEven.computeTest(5)); // Output: true System.out.println(isNegative.computeTest(-5)); }
Example2 - Greeting Lambda
interface MyGreeting { String processName(String str); } public static void main(String args[]) { MyGreeting morningGreeting = (str) -> "Good Morning " + str + "!"; MyGreeting eveningGreeting = (str) -> "Good Evening " + str + "!"; // Output: Good Morning Luis! System.out.println(morningGreeting.processName("Luis")); // Output: Good Evening Jessica! System.out.println(eveningGreeting.processName("Jessica")); }