The program compiles but is not run right can somebody help plz? There are two parts a class and a main.
public class LinkedList56 {
private class node{
int data;
node next;
}
//create an empty linked list
public LinkedList56(){
first = null;
}
//return true if the list is empty, otherwise return false
public boolean empty(){
if(first == null){
return true;
}
else
return false;
}
//insert a value x at the end
public void InsertAtEnd(LinkedList56 x, int a){
//create new node
node q = new node();
node p = new node();
q.data = a;
q.next = null;
//empty list
if(first == null){
first = q;
}
//list is not empty
else
p = first;
while(p.next != null){
p = p.next;
}
p.next = q;
}
//if value x is in the list, romove x
public void Delete(int a){
node pointer = new node();
node doublepointer = new node();
pointer = first;
doublepointer = pointer.next;
while(doublepointer.data != a){
pointer = doublepointer.next;
//preptr = preptr.next;
doublepointer = doublepointer.next;
}
pointer = doublepointer.next;
}
//Display the data values in the linked list
public void Display(){
System.out.println();
}
//pointer to the first node in the list
private node first;
}--------------------------------------MAIN----------------------------------
public class Program2 {
public static void main(String[] args)throws Exception{
LinkedList56 x = new LinkedList56();
for(int a = 1; a < 10; a++){
if((a%2 == 0)){
x.InsertAtEnd(x,a);
x.Display();
x.Delete(2);
System.out.println("list after deleting 2:");
x.Display();
x.Delete(6);
System.out.println("list after deleting 6:");
x.Display();
if(!x.empty()){
System.out.println("List is not empty");
}
}
}
}
}