Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to use BooleanSupplier in lambda expression in Java?
BooleanSupplier is a functional interface defined in the "java.util.function" package. This interface can be used as an assignment target for a lambda expression or method reference. BooleanSupplier interface has only one method getAsBoolean() and returns a boolean result, true or false.
Syntax
@FunctionalInterface
public interface BooleanSupplier {
boolean getBoolean();
}Example
import java.util.function.BooleanSupplier;
public class BooleanSupplierLambdaTest {
public static void main(String[] args) {
BooleanSupplier Obj1 = () -> true;
BooleanSupplier Obj2 = () -> 5 < 50; // lambda expression
BooleanSupplier Obj3 = () -> "tutorialspoint.com".equals("tutorix.com");
System.out.println("Result of Obj1: " + Obj1.getAsBoolean());
System.out.println("Result of Obj2: " + Obj2.getAsBoolean());
System.out.println("Result of Obj3: " + Obj3.getAsBoolean());
}
}Output
Result of Obj1: true Result of Obj2: true Result of Obj3: false
Updated on: 13-Jul-2020
2K+ Views
Advertisements