UrbanPro
true

Learn Java Training from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

Lambda Expressions in Java

Ashish Somvanshi
16/04/2021 0 0

A lambda expression, introduced in Java 8 is similar to a block of code resembling an anonymous function that can be passed to constructors or methods for execution as an argument.

Examples:

a)() -> System.out.println("Hello Lambda")
b)
(int x) -> 3
x -> {
System.out.println(x + 2);
return x +3;
}

In the first example :

() identifies the lambda's parameter list (there are no parameters),

 -> indicates that the expression is a lambda

System.out.println("....") is the code to be executed which prints the string "Hello Lambda".

In the Second Example:

(x) identifies the lambda's parameter list (x is an input parameter),

 -> indicates that the expression is a lambda

System.out.println("....") is the code to be executed which calculates the value of x + 2 and prints it. Also assigns a value of x+3 = 6 to variable x which had an initial value of 3.

0 Dislike
Follow 1

Please Enter a comment

Submit

Other Lessons for You

Priority in TestNG
public class Priority { @Test (priority=1)public void login() {System.out.println("login");} @Testpublic void email1() {System.out.println("email1");} @Test (priority=-2)public void email2() {System.out.println("email2");} //I...

Sarthak Chadha | 22/11/2021

0 0
0

Example of DependsOnMethod in TestNG
public class dependsonM { @Test public void login() { System.out.println("login"); } @Test (dependsOnMethods = {"login"}) public void email() { //Intentionally I am failing this testcase Assert.assertTrue(false);...

Sarthak Chadha | 18/11/2021

0 0
0

TestNG Annotations and its sequence
public class TestNGAnnotations { @BeforeMethod public void beforeM() { System.out.println("Before Method"); } @AfterMethod public void afterMethod() { System.out.println("After Method"); } @BeforeClass...

Sarthak Chadha | 18/11/2021

0 0
0

ListIterator Example
public class ListIteratorEx { public static void main(String args) { List<String> li = new ArrayList<String>(); li.add("java1"); li.add("java2"); li.add("java3"); li.add("java4"); ListIterator...

Sarthak Chadha | 18/11/2021

0 0
0

doWhile example in Java
public class doWhilePracticleEx { public void test() { } public static void main(String args) { String q1 = "Who is PM of India?"; String a1 = "Sonia Gandhi"; String a2 = "Rahul Gandhi"; String a3...

Sarthak Chadha | 18/11/2021

0 0
0
X

Looking for Java Training Classes?

The best tutors for Java Training Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn Java Training with the Best Tutors

The best Tutors for Java Training Classes are on UrbanPro

Book a Free Demo

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more