public static void SetNewProperties(PersonRefOut Person, ref PersonRefOut RefPerson)
{
Person.Age = 100;
Person.Name = "NEW";
RefPerson.Age = 100;
RefPerson.Name = "NEW";
}
public static void SetNewReference(PersonRefOut Person, ref PersonRefOut RefPerson)
{
Person = new PersonRefOut()
{
Age = 100, Name = "NEW"
};
RefPerson = new PersonRefOut()
{
Age = 100, Name = "NEW"
};
}
static void Main(string[] args)
{
// predefine data for examples
var workerIdentNumber = Guid.NewGuid();
var workerWithoutOverridenEquals_1 = new WorkerWithoutOverridenEquals()
{
Name = "Ivan",
IdentificationNumber = workerIdentNumber
};
var workerWithoutOverridenEquals_2 = new WorkerWithoutOverridenEquals()
{
Name = "Ivan",
IdentificationNumber = workerIdentNumber
};
var workerWithOverridenEquals_1 = new WorkerWithOverridenEquals()
{
Name = "Max",
IdentificationNumber = workerIdentNumber
};
var workerWithOverridenEquals_2 = new WorkerWithOverridenEquals()
{
Name = "Max",
IdentificationNumber = workerIdentNumber
};
var pointWithoutOverridenEquals_0_0_1 = new PointWithoutOverridenEquals(0, 0, 1);
var pointWithoutOverridenEquals_0_0_2 = new PointWithoutOverridenEquals(0, 0, 2);
var pointWithOverridenEquals_0_0_1 = new PointWithOverridenEquals(0, 0, 1);
var pointWithOverridenEquals_0_0_2 = new PointWithOverridenEquals(0, 0, 2);
string string_base = "string";
string string1_1 = "string1";
string string1_2 = "string1";
string string2 = "string2";
// String is ref or value?
ModifyString(string_base);
// 1) Object.Equals
if (false)
{
// 1.1) ReferenceEquals
if (false)
{
// 1.1.1) ReferenceType
bool isReferenceEquals_ReferenceType_WithoutOverriden_1_2 =
Object.ReferenceEquals(workerWithoutOverridenEquals_1, workerWithoutOverridenEquals_2);
bool isReferenceEquals_ReferenceType_WithOverriden_1_2 =
Object.ReferenceEquals(workerWithOverridenEquals_1, workerWithOverridenEquals_2);
bool isReferenceEquals_ReferenceType_1_1 =
Object.ReferenceEquals(workerWithOverridenEquals_1, workerWithOverridenEquals_1);
// 1.1.2) ValueType
bool isReferenceEquals_ValueType_1_2 =
Object.ReferenceEquals(pointWithoutOverridenEquals_0_0_1, pointWithoutOverridenEquals_0_0_2);
bool isReferenceEquals_ValueType_1_1 =
Object.ReferenceEquals(pointWithoutOverridenEquals_0_0_1, pointWithoutOverridenEquals_0_0_1);
// HW boxing/Unboxing
{
var res1 = 1.Equals(1); // 1 == 1
object obj1 = (object)1; //boxing
int intValue = (int)obj1; //unboxing
var res2 = 1.Equals(obj1);
var boolEquility = false.Equals(false);
}
// 1.1.3) String
bool isReferenceEquals_String_1_2 =
object.ReferenceEquals(string1_1, string2);
bool isReferenceEquals_String_1_1_vs_1_1 =
object.ReferenceEquals(string1_1, string1_1);
bool isReferenceEquals_String_1_1_vs_1_2 =
object.ReferenceEquals(string1_1, string1_2);
bool isReferenceEquals_String_1_1_vs_modified =
object.ReferenceEquals(string1_1, "string" + "1");
bool isReferenceEquals_String_1_1_vs_modified_base =
object.ReferenceEquals(string1_1, string_base + "1");
}
// 1.2) public virtual bool Equals(object obj)
if (false)
{
// 1.2.1) ReferenceType
bool isVirtualEquals_ReferenceType_WithoutOverriden_1_2 =
workerWithoutOverridenEquals_1.Equals(workerWithoutOverridenEquals_2);
bool isVirtualEquals_ReferenceType_WithOverriden_1_2 =
workerWithOverridenEquals_1.Equals(workerWithOverridenEquals_2);
bool isVirtualEquals_ReferenceType_1_1 =
workerWithOverridenEquals_1.Equals(workerWithOverridenEquals_1);
// 1.2.2) ValueType
bool isVirtualEquals_ValueType_WithoutOverriden_1_2 =
pointWithoutOverridenEquals_0_0_1.Equals(pointWithoutOverridenEquals_0_0_2);
bool isVirtualEquals_ValueType_WithoutOverriden_1_1 =
pointWithoutOverridenEquals_0_0_1.Equals(new PointWithoutOverridenEquals(0, 0, 1));
bool isVirtualEquals_ValueType_WithOverriden_1_2 =
pointWithOverridenEquals_0_0_1.Equals(pointWithOverridenEquals_0_0_2);
bool isVirtualEquals_ValueType_WithOverriden_1_1 =
pointWithOverridenEquals_0_0_1.Equals(new PointWithoutOverridenEquals(0, 0, 1));
// 1.2.3) String
bool isVirtualEquals_String_1_2 = string1_1.Equals(string2);
bool isVirtualEquals_String_1_1_vs_1_1 = string1_1.Equals(string1_1);
bool isVirtualEquals_String_1_1_vs_1_2 = string1_1.Equals(string1_2);
bool isVirtualEquals_String_1_1_vs_modified = string1_1.Equals("string" + "1");
bool isVirtualEquals_String_1_1_vs_modified_base = string1_1.Equals(string_base + "1");
}
// 1.3) public static bool Equals(object objA, object objB)
if (false)
{
// HW - try at home
}
// 1.4) public static bool operator == (Foo left, Foo right)
if (false)
{
// HW - try at home
}
}
//2 Override operations
if (false)
{
PointWithOverridenEquals minusPoint =
new PointWithOverridenEquals(5, 5, 0) - new PointWithOverridenEquals(3, 3, 1);
PointWithOverridenEquals plusPoint =
new PointWithOverridenEquals(5, 5, 0) + new PointWithOverridenEquals(3, 3, 1);
// TODO: Show Point
WorkerWithOverridenEquals workerPlus = workerWithOverridenEquals_1 - workerWithOverridenEquals_2;
if (workerPlus)
{
{ }
}
WorkerWithOverridenEquals minusWorker = workerWithOverridenEquals_1 + workerWithOverridenEquals_2;
bool isBigger = new WorkerWithOverridenEquals()
{
Name = "1"
} > new WorkerWithOverridenEquals()
{
Name = "12"
};
bool isLess = new WorkerWithOverridenEquals()
{
Name = "1"
} < new WorkerWithOverridenEquals()
{
Name = "12"
};
}
// 3 Ref + Out
if (false)
{
PersonRefOut PersonRefOut1 = new PersonRefOut();
PersonRefOut PersonRefOut2 = new PersonRefOut();
PersonRefOut.SetNewProperties(PersonRefOut1, ref PersonRefOut2);
PersonRefOut.SetNewProperties(PersonRefOut1, ref PersonRefOut2);
PersonRefOut PersonRefOut3 = new PersonRefOut();
PersonRefOut PersonRefOut4 = new PersonRefOut();
PersonRefOut.SetNewReference(PersonRefOut3, ref PersonRefOut4);
PersonRefOut.SetNewReference(PersonRefOut3, ref PersonRefOut4);
PersonRefOut PersonRefOut5 = new PersonRefOut();
int randomAgeOutput;
PersonRefOut.SetNewRandomAge(PersonRefOut5, out randomAgeOutput);
PersonRefOut.SetNewAge(PersonRefOut5, ref randomAgeOutput);
}
}
public static void SetNewAge(PersonRefOut Person, ref int age)
{
age = 10;
Person.Age = age;
}
//static
public static void SetNewRandomAge(PersonRefOut Person, out int randomAge)
{
randomAge = Random.Next(20, 50);
Person.Age = randomAge;
}