public void Insert(GroceryRecord newRecord)
{
int key = newRecord.getgroceryId();
int h = hash(key);
int location = h;
for (int i = 1; i < m; i++)
{
if (array[location] == null || array[location].getgroceryId() == -1)
{
array[location] = newRecord;
n++;
return;
}
if (array[location].getgroceryId() == key)
{
throw new System.InvalidOperationException("Duplicate key");
}
location = (h + i) % m;
}
Console.WriteLine("table is full : item can't be inserted ");
}
public void Insert1(GroceryRecord newRecord)
{
if (n >= m / 2)
{
rehash(nextPrime(2 * m));
Console.WriteLine("New List Size is : " + m);
}
Insert(newRecord);
}
public GroceryRecord Delete(int key)
{
int h = hash(key);
int location = h;
for (int i = 1; i < m; i++)
{
if (array[location] == null)
{
return(null);
}
if (array[location].getgroceryId() == key)
{
GroceryRecord temp = array[location];
array[location].setgroceryId(-1);
n--;
return(temp);
}
location = (h + i) % m;
}
return(null);
}