public class Chaining{
  static int size = 7;
  static class Node{

    int data;
    Node next;

    // constructor 

    Node(int d){
      data = d;
      next = null;
    }
  }
  static Node chain[] = new Node[size];

  static void arr(){

    for(int i=0; i<size; i++){
      chain[i] = null;
    }
  }

  static void insert(int key){
    Node t = new Node(key);

    // hash key 
    int index = key%size;
    if(chain[index]==null){
      chain[index] = t;
    }

    else{
      Node temp = chain[index];
      while(temp.next!=null){
        temp = temp.next;
      }
      temp.next = t;
    }
  }

  static void print(){

    for(int i=0;i<size;i++){
      Node temp = chain[i];

      System.out.print("Chain "+i+" -->");

      while(temp!=null){
        System.out.print(temp.data+" -->");
        temp = temp.next;
      }
      System.out.println("Empty");
    }
  }



  public static void main(String[] args){
    arr();
    insert(4);
    insert(23);
    insert(35);
    insert(25);
    insert(8);

    print();
  }
}