Java8 Lambda Basic

Creating Program in Java8(Lambda) With Array

Follow the below steps to write program with java8(Lambda).
Step-1

Create a package java8lambdabasics under sources package then create the Class Java8LambdaBasics.java. Once you are ready then write the code shown below.

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package java8lambdabasics;

import java.util.Arrays;
import java.util.List;

/**
 *
 * @author PATILNITIN
 */
public class Java8LambdaBasics {

/**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        
        List<String> obj=Arrays.asList("j","a","v","a","8","L","A","M","B","D","A");
        
        obj.forEach(
                
                n-> System.out.print(" "+n)
        );
        
        System.out.println("\n");
        // you can use Lambda is as like also
        Arrays.asList("j","a","v","a","8","by htt://javat.in").forEach(
                // forEach is a method it take input as call the function
                
                s-> System.out.print(s) 
                /*this is a lambda expression 
                 it describe the anonymous function
                 with one parameter having String type of s */
        );
        System.out.println("\n");
    }
    
}

Output

Java8LambdaBasics.java

Creating Program in Java8(Lambda) With Array & bussiness Logic

Follow the below steps to write program with java8(Lambda).
Step-1

Create a package java8lambdabasics under sources package then create the Class LambdaBasics2.java. Once you are ready then write the code as shown below.

Output

LambdaBasics2.java

Creating Program in Java8(Lambda) with Class & Interface userdefined

Follow the below steps to write program with java8(Lambda).
Step-1

Create a package com.javat.java8 under sources package-> then create the Interface java8test.java. Once you ready then write below code.

Step-2

Create the Java class java8.java. Once you are ready then write the code as shown below.

Step-3

Create the Java class Lamdabasics.java. Once you are ready then write the code as shown below.

/**
 *
 * @author PATIL NITIN
 */

interface java8test
{
    void test();
    
}
class java8
{
    void run(java8test t)
    {
        System.out.println("inplemented method execute....");
        t.test();
    }
}
public class Lamdabasics {
    
    
    public static void main(String args[])
    {
        
        java8 obj=new java8();
        
        // before lamda expression we do like wise code
        // Anonymous Inner Class
        obj.run(new java8test(){
            @Override
            public void test()
            {
                System.out.println("hello world");
            }
            });
           // int lamda expression we do like wise
           // it helps to pass the value or data to the function
        obj.run(() -> System.out.println("hello world"));
    }
}

Output

Lamdabasics.java

Download example and run it on Netbeans IDE

JAVA TUTORIALS

Java8 Lambda Basic

Creating Program in Java8(Lambda) With Array

Creating Program in Java8(Lambda) With Array & bussiness Logic

Creating Program in Java8(Lambda) with Class & Interface userdefined