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Have you used Java 8 and Later? What the most important features added in Java 8.

Pragya Keshap answered on February 24, 2023 Popularity 6/10 Helpfulness 1/10

answer Have you used Java 8 and Later? What the most important features added in Java 8.

Have you used Java 8 and Later? What the most important features added in Java 8.

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Java 8 is a Major release from Oracle that changes the way of programming and some of the very powerful features added in Java 8 are -

Lambda Expressions & Functional Interface.

Java Stream API

forEach() method in Iterable interface

default and static methods in Interfaces

Java Date and Time API

package com.journaldev.java8.foreach;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.function.Consumer;
import java.lang.Integer;

public class Java8ForEachExample {

	public static void main(String[] args) {
		
		//creating sample Collection
		List<Integer> myList = new ArrayList<Integer>();
		for(int i=0; i<10; i++) myList.add(i);
		
		//traversing using Iterator
		Iterator<Integer> it = myList.iterator();
		while(it.hasNext()){
			Integer i = it.next();
			System.out.println("Iterator Value::"+i);
		}
		
		//traversing through forEach method of Iterable with anonymous class
		myList.forEach(new Consumer<Integer>() {

			public void accept(Integer t) {
				System.out.println("forEach anonymous class Value::"+t);
			}

		});
		
		//traversing with Consumer interface implementation
		MyConsumer action = new MyConsumer();
		myList.forEach(action);
		
	}

}

//Consumer implementation that can be reused
class MyConsumer implements Consumer<Integer>{

	public void accept(Integer t) {
		System.out.println("Consumer impl Value::"+t);
	}
}

Popularity 6/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java java-8

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Contributed on Feb 24 2023

Pragya Keshap

0 Answers Avg Quality 2/10

Have you used Java 8 and Later? What the most important features added in Java 8.

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