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SinglyLinkedList1.java
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79 lines (75 loc) · 1.4 KB
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public class SinglyLinkedList1 {
class Node{
int data;
Node next;
Node(int data){
this.data=data;
this.next=null;
}
}
Node head=null;
Node tail=null;
void addNode(int data) {
Node n=new Node(data);
if(head==null) {
head=n;
tail=n;
}
else {
tail.next=n;
tail=n;
}
}
/*void insertAtBegin(int data) {
Node n=new Node(data);
if(head==null) {
head=n;
tail=n;
}
else {
Node temp=head;
head=n;
n.next=temp;
}
}*/
void insertAtEnd(int data) {
Node n=new Node(data);
if(head==null) {
head=n;
tail=n;
}
else {
tail.next=n;
tail=n;
}
}
void display() {
Node current=head;
if(head==null) {
System.out.println("List is Empty");
return;
}
else {
while(current !=null) {
System.out.print(current.data+",");
current=current.next;
}
System.out.println();
}
}
public static void main(String[] args) {
SinglyLinkedList1 s1=new SinglyLinkedList1();
s1.addNode(10);
s1.addNode(20);
s1.addNode(30);
s1.addNode(40);
s1.addNode(50);
//System.out.println("Before inserting the Element at the begining");
System.out.println("Before inserting the Element at the End");
s1.display();
System.out.println("After inserting the Element at the End");
//s1.insertAtBegin(100);
s1.insertAtEnd(33);
s1.display();
}
}