Deleting Desire Element of Linked List Java Example

import java.io.*; 
 class node 
 { 
        public int v; 
        public node nxt; 
        public node(int x) 
           { 
               v=x; 
           }    
               public void dispval() 
               { 
                    System.out.println(v); 
               } 
 } 
         class LinkList 
           { 
               private node first,p,q; 
               public LinkList() 
                    { 
                       first=null; 
                    } 
                        public void insertval(int x) 
                            { 
                                node p=new node(x); 
                                p.nxt=null; 
                                if(first==null) 
                                     { 
                                          first=p; 
                                          q=p; 
                                     } 
                                          else 
                                            { 
                                               q.nxt=p; 
                                               q=p; 
                                            } 
                           } 
                               public void delmid(int x) 
                                         { 
                                              p=first; 
                                              q=first.nxt; 
                                              while(q !=null) 
                                                     { 
                                                             if(q.v==x) 
                                                               { 
                                                                   p.nxt=q.nxt; 
                                                                   q=null; 
                                                                    break; 
                                                                } 
                                                                     else 
                                                                         { 
                                                                             p=q; 
                                                                             q=q.nxt; 
                                                                          } 
                                                     } 
                                         } 
                                           public void displayList() 
                                              { 
                                                   node r=first; 
                                                   while(r !=null) 
                                                           { 
                                                               r.dispval(); 
                                                               r=r.nxt; 
                                                           } 
                                              } 
           } 
       class DeletingDesireElement 
       { 
           public static void main(String args[]) throws IOException 
               { 
                   LinkList k=new LinkList(); 
                   BufferedReader b=new BufferedReader(new InputStreamReader(System.in)); 
                   String h; 
                   int n,i,m; 
                   System.out.println("How many numbers you want to insert in Linked list"); 
                   h=b.readLine(); 
                   n=Integer.parseInt(h); 
                   System.out.println("enter numericals in linked list"); 
                   for(i=1;i<=n;i++) 
                        { 
                             h=b.readLine(); 
                             m=Integer.parseInt(h); 
                             k.insertval(m); 
                        } 
                             System.out.println("Data in linked list is"); 
                             k.displayList(); 
                             System.out.println("Enter the element to delete"); 
                             h=b.readLine(); 
                             m=Integer.parseInt(h); 
                             k.delmid(m); 
                             System.out.println("Data in Linked List after deleting desired element is"); 
                             k.displayList(); 
            } 
      }