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Commit e9dfb3c3 authored by Harshitha1711's avatar Harshitha1711
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added functional interface

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.idea/.gitignore 0 → 100644
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/shelf/
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.idea/misc.xml 0 → 100644
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.idea/modules.xml 0 → 100644
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/Java-functional-Interface.iml" filepath="$PROJECT_DIR$/Java-functional-Interface.iml" />
</modules>
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</project>
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.idea/uiDesigner.xml 0 → 100644
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.idea/vcs.xml 0 → 100644
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>
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Java-functional-Interface.iml 0 → 100644
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<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$">
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<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>
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src/Lambda/Display.java 0 → 100644
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package Lambda;
public interface Display
{
public abstract void hello();
}
src/Lambda/FunctionalInterfaceExample.java 0 → 100644
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package Lambda;
import java.util.ArrayList;
import java.util.List;
public class FunctionalInterfaceExample {
public static void main(String[] args) {
List<Person> people = new ArrayList<>();
people.add(new Person("harshitha",1));
people.add(new Person("Sai",2));
people.add(new Person("anusha",4));
people.sort((person1,person2) -> {
return person1.getAge() - person2.getAge();
});
for(Person person: people){
System.out.println(person.getName()+ " " +person.getAge());
}
}
}
class Person{
private String name;
private int 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;
}
public Person(String name, int age) {
this.name = name;
this.age = age;
}
}
src/Lambda/FunctionalTest.java 0 → 100644
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package Lambda;
public interface FunctionalTest {
void abstractTest(int x);
default void Message(){
System.out.println("hello");
}
}
class Test{
public static void main(String[] args) {
FunctionalTest functionalTest = (int x) -> System.out.println(2*x);
functionalTest.abstractTest(7);
}
}
src/Lambda/PredicateExample.java 0 → 100644
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package Lambda;
public class PredicateExample {
public static void main(String[] args) {
Display i = () -> System.out.println("This is predicate example");
i.hello();
SumOfTwoIntegers s = (a, b) -> (a+b);
System.out.println(s.sum(5,6));
System.out.println(s.sum(7,7));
}
}
src/Lambda/PredicateExample1.java 0 → 100644
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package Lambda;
import java.util.ArrayList;
import java.util.List;
import java.util.*;
import java.util.function.Predicate;
public class PredicateExample1 {
public static void main(String[] args) {
List<User> users = new ArrayList<User>();
users.add(new User("dev","Harshitha"));
users.add(new User("dev","yamini"));
users.add(new User("QA","Anusha"));
List devs = process(users,(User u)->u.getRole().equals("dev"));
System.out.println(devs);
}
public static List<User> process(List<User> users, Predicate<User> predicate){
List<User> result = new ArrayList<User>();
for(User user:users){
if(predicate.test(user)){
result.add(user);
}
}
return result;
}
}
src/Lambda/PredicateStringComparing.java 0 → 100644
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package Lambda;
import java.util.function.Predicate;
public class PredicateStringComparing {
public static void main(String[] args) {
String s1="hello";
String s2="hello";
Predicate<String> p = s->s.equals(s2);
if(p.test(s1)){
System.out.println("equal");
}
else{
System.out.println("not equal");
}
}
}
src/Lambda/SumOfTwoIntegers.java 0 → 100644
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package Lambda;
public interface SumOfTwoIntegers
{
public abstract int sum(int a,int b);
}
src/Lambda/SupplierExample.java 0 → 100644
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package Lambda;
import java.util.function.Consumer;
import java.util.function.Supplier;
public class SupplierExample {
public static void main(String[] args) {
//example of supplier
Supplier<String> supplier = () -> {
System.out.println("inside the supplier");
return "hello";
};
String string = supplier.get();
System.out.println(string);
//example of consumer
Consumer<String> consumer = (String s) -> {
System.out.println("Inside the consumer");
System.out.println(s);
};
consumer.accept("hello");
Supplier<String> supplier1 = () -> {
System.out.println("Supplier");
return "hello";
};
String s = supplier1.get();
System.out.println(s);
}
}
src/Lambda/User.java 0 → 100644
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package Lambda;
public class User {
private String role;
private String name;
public String getRole() {
return role;
}
public void setRole(String role) {
this.role = role;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
return "User{" +
"role='" + role + '\'' +
", name='" + name + '\'' +
'}';
}
public User(String role, String name) {
this.role = role;
this.name = name;
}
}
src/Main.java 0 → 100644
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public class Main {
public static void main(String[] args) {
System.out.println("Hello world!");
}
}
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