Program
import java.io.LinkedList;
import java.util.LinkedList;
public class LinkedListTypes {
public static void main(String args[]) {
LinkedList<String> jaswanth = new LinkedList<String>();
LinkedList<String> venkatesh = new LinkedList<String>();
LinkedList<String> murugabalan = new LinkedList<String>();
jaswanth.add("HE");
jaswanth.add("IS");
jaswanth.add("FROM");
jaswanth.add("CHENNAI");
jaswanth.add("TAMILNADU");
System.out.println("Jaswanth Is From:" + jaswanth);
//clone()
venkatesh = (LinkedList) jaswanth.clone();
murugabalan = (LinkedList) jaswanth.clone();
System.out.println("Venkatesh Is From:" + venkatesh);
System.out.println("Murugabalan Is From:" + murugabalan);
//getFirst()
System.out.println("The first element is: " + jaswanth.getFirst());
//getLast()
System.out.println("The Last element is: " + jaswanth.getLast());
//remove()
jaswanth.remove();
System.out.println("Final LinkedList:" + jaswanth);
// contains(Object o)
System.out.println("IS THE LIST CONTAINS CHENNAI : " + jaswanth.contains("CHENNAI"));
}
}Output
Jaswanth Is From:[HE, IS, FROM, CHENNAI, TAMILNADU] Venkatesh Is From:[HE, IS, FROM, CHENNAI, TAMILNADU] Murugabalan Is From:[HE, IS, FROM, CHENNAI, TAMILNADU] The first element is: HE The Last element is: TAMILNADU Final LinkedList:[IS, FROM, CHENNAI, TAMILNADU] IS THE LIST CONTAINS CHENNAI : true
Description
public E getFirst()
Returns the first element in this list.
Specified by:
getFirst in interface Deque<E>
Returns:
the first element in this list
Throws:
NoSuchElementException – if this list is empty
public E getLast()
Returns the last element in this list.
Specified by:
getLast in interface Deque<E>
Returns:
the last element in this list
Throws:
NoSuchElementException – if this list is empty
public boolean contains(Object o)
Returns true if this list contains the specified element. More formally, returns true if and only if this list contains at least one element e such that Objects.equals(o, e).
Specified by:
contains in interface Collection<E>
Specified by:
contains in interface Deque<E>
Specified by:
contains in interface List<E>
Overrides:
contains in class AbstractCollection<E>
Parameters:
o – element whose presence in this list is to be tested
Returns:
true if this list contains the specified element
public E remove()
Retrieves and removes the head (first element) of this list.
Specified by:
remove in interface Deque<E>
Specified by:
remove in interface Queue<E>
Returns:
the head of this list
Throws:
NoSuchElementException – if this list is empty
public Object clone()
Returns a shallow copy of this LinkedList. (The elements themselves are not cloned.)
Overrides:
clone in class Object
Returns:
a shallow copy of this LinkedList instance
