import java.util.LinkedList;
public class AddElementsAtStartEndLinkedListExample {
public static void main(String[] args) {
//create LinkedList object
LinkedList lList = new LinkedList();
//add elements to LinkedList
lList.add("1");
lList.add("2");
lList.add("3");
lList.add("4");
lList.add("5");
System.out.println("LinkedList contains : " + lList);
/*
* To add an element at the beginning of the LinkedList, use
* void addFirst(Object obj) method.
*
* This method inserts object at the beginning of the LinkedList.
*/
lList.addFirst("0");
System.out.println("After inserting 0 at beginning, LinkedList contains :"
+ lList);
/*
* To append an element at end of the LinkedList, use
* void addLast(Object obj) method.
*
* This method append specified element at the end of the LinkedList.
*/
lList.addLast("6");
System.out.println("After appending 0 at end, LinkedList contains :" + lList);
}
}
/*
Output would be
LinkedList contains : [1, 2, 3, 4, 5]
After inserting 0 at beginning, LinkedList contains :[0, 1, 2, 3, 4, 5]
After appending 0 at end, LinkedList contains :[0, 1, 2, 3, 4, 5, 6]
*/
public class AddElementsAtStartEndLinkedListExample {
public static void main(String[] args) {
//create LinkedList object
LinkedList lList = new LinkedList();
//add elements to LinkedList
lList.add("1");
lList.add("2");
lList.add("3");
lList.add("4");
lList.add("5");
System.out.println("LinkedList contains : " + lList);
/*
* To add an element at the beginning of the LinkedList, use
* void addFirst(Object obj) method.
*
* This method inserts object at the beginning of the LinkedList.
*/
lList.addFirst("0");
System.out.println("After inserting 0 at beginning, LinkedList contains :"
+ lList);
/*
* To append an element at end of the LinkedList, use
* void addLast(Object obj) method.
*
* This method append specified element at the end of the LinkedList.
*/
lList.addLast("6");
System.out.println("After appending 0 at end, LinkedList contains :" + lList);
}
}
/*
Output would be
LinkedList contains : [1, 2, 3, 4, 5]
After inserting 0 at beginning, LinkedList contains :[0, 1, 2, 3, 4, 5]
After appending 0 at end, LinkedList contains :[0, 1, 2, 3, 4, 5, 6]
*/
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