Answer Posted / guest

public class ReverseList {

public static void main(String[] args) {
ReverseList revalgo = new ReverseList ();
Node n1 = new Node();
n1.data = "A";
revalgo.insert(n1);

n1 = new Node();
n1.data = "B";
revalgo.insert(n1);

n1 = new Node();
n1.data = "C";
revalgo.insert(n1);

n1 = new Node();
n1.data = "D";
revalgo.insert(n1);

n1 = new Node();
n1.data = "E";
revalgo.insert(n1);
System.out.println("Link List");
revalgo.print();
System.out.println("Reversed Link List");
revalgo.reverse();
revalgo.print();
}

void insert(Node n)
{
n.next = root;
root = n;
}

void print()
{
Node current = root;
while(current != null)
{
System.out.print(current.data + "->");
current = current.next;
if(current == null)
System.out.println(""+ null);
}
}

void reverse()
{
Node current = null;
Node prev = null;
while(root != null)
{
current = root;
root = root.next;
current.next = prev;
prev = current;
}
root = current;
}

Node root = null;
}

class Node {
String data;
Node next;
}

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