Java 8 (1.8) New Features

Java 8 (1.8) New Features

- Oracle released a new version of Java as Java 8 in March 18, 2014. 

- Java Platform, Standard Edition 8 is a major feature release.

 Java 8 Programming Language Enhancements

Java 8 provides following features for Java Programming:

• Lambda expressions,
• Method references,
• Functional interfaces,
• Stream API,
• Default methods,
• Base64 Encode Decode,
• Static methods in interface,
• Optional class,
• Collectors class,
• ForEach() method,
• Parallel array sorting,
• Nashorn JavaScript Engine,
• Type and Repeating Annotations,
• IO Enhancements,
• Concurrency Enhancements,
• JDBC Enhancements etc.

Without Lambda Expression

1. interface Drawable{  
2.     public void draw();  
3. }  
4. public class LambdaExpressionExample {  
5.     public static void main(String[] args) {  
6.         int width=10;  
7.   
8.         //without lambda, Drawable implementation using anonymous class  
9.         Drawable d=new Drawable(){  
10.             public void draw(){System.out.println("Drawing "+width);}  
11.         };  
12.         d.draw();  
13.     }  
14. } 

------------------------------------

OUTPUT:- Drawing 10

Java Lambda Expression Example

1. @FunctionalInterface  //It is optional  
2. interface Drawable{  
3.     public void draw();  
4. }  
5.   
6. public class LambdaExpressionExample2 {  
7.     public static void main(String[] args) {  
8.         int width=10;  
9.           
10.         //with lambda  
11.         Drawable d2=()->{  
12.             System.out.println("Drawing "+width);  
13.         };  
14.         d2.draw();  
15.     }  
16. } 

-----------------------------------------

 OUTPUT:-  Drawing 10