You are to implement 2 different hash tables, with different hashing functions.

Question

You are to implement 2 different hash tables, with different hashing functions. All of them should implement the following interface:

public interface HashTable {

public void add(String key, V value);

public V remove(String key);

public V lookup(String key);

public Object[] getValuesList();

public void printReport();

}

The printReport() method should print to the console the following statistics:

The Load Factor, that is, the ratio of used to total number of buckets.

The longest chain in the table, that is, the maximum number of collisions for a particular bucket.

The Density Factor, that is, the ratio of elements stored elements to total number of buckets.

The Chanining Factor, that is, the average length of any chain in the table.

The 2 types of hashing functions you are to implement are:

Additive Hashing

XOR-Shift (Rotational) Hashing

The hash tables should implement resizing and rehashing. The V[] getSortedList(V[] list) method should return a sorted list with all the elements in the array.

This is for a JAVA PROGRAM also required to use interface also needs to be a String.

public class addHash, V> implements HashTable{

   @Override
   public void add(String key, V value) {
       // TODO Auto-generated method stub
      
   }

   @Override
   public V remove(String key) {
       // TODO Auto-generated method stub
       return null;
   }

   @Override
   public V lookup(String key) {
       // TODO Auto-generated method stub
       return null;
   }

   @Override
   public Object[] getValuesList() {
       // TODO Auto-generated method stub
       return null;
   }

   @Override
   public void printReport() {
       // TODO Auto-generated method stub
      
}
}  

Explanation / Answer

public class addHash, V> implements HashTable{

   @Override
   public void add(String key, V value) {
       // TODO Auto-generated method stub
      
   }

   @Override
   public V remove(String key) {
       // TODO Auto-generated method stub
       return null;
   }

   @Override
   public V lookup(String key) {
       // TODO Auto-generated method stub
       return null;
   }

   @Override
   public Object[] getValuesList() {
       // TODO Auto-generated method stub
       return null;
   }

   @Override
   public void printReport() {
       // TODO Auto-generated method stub
      
}
}

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.