Click here to watch in Youtube :
https://www.youtube.com/watch?v=6iwQDOAcl6Y&list=UUhwKlOVR041tngjerWxVccw
Person.java
public class Person { private String name; private int age; public Person(String name, int age) { super(); this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return "Person [name=" + name + ", age=" + age + "]"; } }LambdaPredicateDemo.java
import java.util.Arrays; import java.util.List; import java.util.function.Predicate; public class LambdaPredicateDemo { public static void main(String[] args) { List<Person> personList = Arrays.asList( new Person("Carla", 33), new Person("Balu", 32), new Person("Bharth", 40), new Person("Ajay", 31)); System.out.println("------------Name Starts with B---------"); Predicate<Person> predicate = person -> person.getName().startsWith("B"); printNameBeginWith_B(personList, predicate); System.out.println("----------------------------------------"); } /* * Method to print all people that have name begins with B. */ private static void printNameBeginWith_B(List<Person> personList, Predicate<Person> predicate) { for (Person person : personList) { if (predicate.test(person)) { System.out.println(person); } } } }Output
------------Name Starts with B--------- Person [name=Balu, age=32] Person [name=Bharth, age=40]Refer:
https://docs.oracle.com/javase/8/docs/api/java/util/function/package-summary.html
https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/LambdaDemo_predicate_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/317a84d07ee35ecc7934d034a6ca38f552a21665/BasicJava/LambdaDemo_predicate_App/?at=master
See also:
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