69 lines
1.5 KiB
Java
69 lines
1.5 KiB
Java
class CircularLinkedList{
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class Node {
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int value;
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Node next;
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public Node(int value) {
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this.value = value;
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}
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}
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private Node head = null;
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private Node tail = null;
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public void addNode(int value) {
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Node newNode = new Node(value);
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if (head == null) {
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head = newNode;
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} else {
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tail.next = newNode;
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}
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tail = newNode;
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tail.next = head;
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}
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public void printNodes() {
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Node current = head;
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if(head == null) {
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System.out.println("List is empty");
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return;
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}
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System.out.println("The circular linked list is: ");
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System.out.print("[ ");
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do{
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System.out.print(current.value + " ");
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current = current.next;
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//go to next until we get back to the head
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}while(current != head);
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System.out.println("]");
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}
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}
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public class circular {
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public static void main(String [] args){
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CircularLinkedList cll = new CircularLinkedList();
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cll.addNode(10);
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cll.addNode(12);
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cll.addNode(2);
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cll.addNode(1);
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cll.addNode(8);
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cll.addNode(42);
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cll.addNode(17);
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cll.printNodes();
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//this will print :
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/*
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The circular linked list is:
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[ 10 12 2 1 8 42 17 ]
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*/
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}
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}
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/*
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to run the file:
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javac circular.java
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java circular
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*/ |