Home » Java programming language

Java LinkedList getFirst() method with Example

Java LinkedList getFirst() method: Here, we are going to learn about the getFirst() method of LinkedList class with its syntax and example.
Submitted by Preeti Jain, on June 15, 2019

LinkedList getFirst() method

  • This method is available in package java.util.LinkedList.
  • This method is used to return the first or initial or beginning element of the linked list.

Syntax:

    Object getFirst(){
    }

Parameter(s):

In this method, we don’t pass any object as a parameter in the method but it returns the first object from the linked list.

Return value:

The return type of this method is not void that means this method returns object or element (i.e. It returns the only first element in the list).

If the list is empty then it gives exception NoSuchElementException.

Java program to demonstrate example of LinkedList getFirst() method

import java.util.LinkedList;

public class LinkList {
	public static void main(String[] args) {
		LinkedList list = new LinkedList();
		// use add() method to add elements in the list 
		list.add(10);
		list.add(20);
		list.add(30);
		list.add(40);
		list.add(50);

		//  Current list Output
		System.out.println("The Current list is:" + list);

		//  Return first element from the list  
		System.out.println("The First Element From The List is:" + list.getFirst());
	}
}

Output

D:\Programs>javac LinkList.java

D:\Programs>java LinkList
The Current list is:[10, 20, 30, 40, 50]
The First Element From The List is: 10





Comments and Discussions

Ad: Are you a blogger? Join our Blogging forum.




Languages: » C » C++ » C++ STL » Java » Data Structure » C#.Net » Android » Kotlin » SQL
Web Technologies: » PHP » Python » JavaScript » CSS » Ajax » Node.js » Web programming/HTML
Solved programs: » C » C++ » DS » Java » C#
Aptitude que. & ans.: » C » C++ » Java » DBMS
Interview que. & ans.: » C » Embedded C » Java » SEO » HR
CS Subjects: » CS Basics » O.S. » Networks » DBMS » Embedded Systems » Cloud Computing
» Machine learning » CS Organizations » Linux » DOS
More: » Articles » Puzzles » News/Updates


© https://www.includehelp.com some rights reserved.