//Override GetHashCode()
public override int GetHashCode() //https://docs.microsoft.com/en-us/dotnet/api/system.object.gethashcode?view=netframework-4.8
{
return(FirstName.GetHashCode()
^ MiddleName.GetHashCode()
^ LastName.GetHashCode()
^ SSN.GetHashCode()); //https://www.tutorialspoint.com/csharp/csharp_operators.htm Binary XOR Operator copies the bit if it is set in one operand but not both. (A ^ B) = 49, which is 0011 0001
}
public override int GetHashCode()
{
// using prime numbers to multiply
int hash = 29;
int hashMultiplier = 11;
// overflow is ok for hashing
unchecked
{
// use multyplying and the fields' own hashcode to generate a unique code for the student
hash = hash * hashMultiplier + string.Format("{0} {1} {2}", FirstName, MiddleName, LastName).GetHashCode();
hash = hash * hashMultiplier + Adress.GetHashCode();
hash = hash * hashMultiplier + Course.GetHashCode();
hash = hash * hashMultiplier + Email.GetHashCode();
hash = hash * hashMultiplier + Faculty.GetHashCode();
hash = hash * hashMultiplier + Phone.GetHashCode();
hash = hash * hashMultiplier + SSN.GetHashCode();
hash = hash * hashMultiplier + University.GetHashCode();
hash = hash * hashMultiplier + Specialty.GetHashCode();
}
return(hash);
}
public override int GetHashCode()
{
int hash = 13;
Random rand = new Random();
hash = (hash * 7) + SSN.GetHashCode();
hash = (hash * rand.Next(1, 1000));
hash = (hash * counter);
return(hash);
}
public override int GetHashCode()
{
return(FirstName.GetHashCode() ^
MiddleName.GetHashCode() ^
LastName.GetHashCode() ^
SSN.GetHashCode() ^
PermanentAddress.GetHashCode() ^
MobilePhoneNr.GetHashCode() ^
Email.GetHashCode() ^
Course.GetHashCode() ^
Speciality.GetHashCode() ^
University.GetHashCode() ^
Faculty.GetHashCode());
}
public override int GetHashCode()
{
int hash = 29;
int hashMultiplier = 11;
unchecked
{
hash = hash * hashMultiplier + string.Format("{0} {1} {2}", FirstName, MiddleName, LastName).GetHashCode();
hash = hash * hashMultiplier + Adress.GetHashCode();
hash = hash * hashMultiplier + Course.GetHashCode();
hash = hash * hashMultiplier + Email.GetHashCode();
hash = hash * hashMultiplier + Faculty.GetHashCode();
hash = hash * hashMultiplier + Phone.GetHashCode();
hash = hash * hashMultiplier + SSN.GetHashCode();
hash = hash * hashMultiplier + University.GetHashCode();
hash = hash * hashMultiplier + Specialty.GetHashCode();
}
return(hash);
}
public override int GetHashCode()
{
var hashCode = -684685926;
hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(LastName);
hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(FirstName);
hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(MidlleName);
hashCode = hashCode * -1521134295 + SSN.GetHashCode();
hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(Adress);
hashCode = hashCode * -1521134295 + MobilePhone.GetHashCode();
hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(Email);
hashCode = hashCode * -1521134295 + EqualityComparer <string> .Default.GetHashCode(Course);
hashCode = hashCode * -1521134295 + Specialitate.GetHashCode();
hashCode = hashCode * -1521134295 + Universitate.GetHashCode();
hashCode = hashCode * -1521134295 + Facultate.GetHashCode();
return(hashCode);
}
public override int GetHashCode()
{
return(LastName.GetHashCode() ^ SSN.GetHashCode() ^ Mobile.GetHashCode());
}
public override int GetHashCode()
{
int hash = SSN.GetHashCode();
return(31 * hash);
}
public override int GetHashCode()
{
return(FirstName.GetHashCode() ^ SSN.GetHashCode());
}
public override int GetHashCode()
{
return(SSN.GetHashCode() ^ PermanentAddress.GetHashCode());
}
public override int GetHashCode()
{
return(SSN.GetHashCode());
}
public override int GetHashCode()
{
return(FirstName.GetHashCode() ^ MiddleName.GetHashCode() ^ LastName.GetHashCode() ^ SSN.GetHashCode() ^ Phone.GetHashCode());
}
public override int GetHashCode()
{
return(Name.GetHashCode() ^ SSN.GetHashCode() & Email.GetHashCode());
}