What are the Difference between Structure and Class??

Question

Rajeev Kumar · Answer

Class are ref type and Struc are value type 2. Struc doesn’t support inheritance except interface. 3. Class use heap and Struc use Stacks 4 Class use concept of boxing and unboxing but Struc doesn’t use 5. members of struc are by default public where as in class members are private. 6. we can not create default constructor of struc

latesh sarode · Answer

Struct vs Class
struct Location
{
public int x, y;
public Location(int x, int y)
{
this.x = x;
this.y = y;
}
}
Location a = new Location(20, 20);
Location b = a;
a.x = 100;
System.Console.WriteLine(b.x)
;
The output will be 20. Value of “b” is a copy of “a”, so “b” is unaffected by change of “a.x”. But in class, the output will be 100 because “a” and “b” will reference the same object.
To answer this question, we should have a good understanding of the differences.
1
Structs are value types, allocated either on the stack or inline in containing types.
Classes are reference types, allocated on the heap and garbage-collected.
2
Allocations and de-allocations of value types are in general cheaper than allocations and de-allocations of reference types.
Assignments of large reference types are cheaper than assignments of large value types.
3
In structs, each variable contains its own copy of the data (except in the case of the ref and out parameter variables), and an operation on one variable does not affect another variable.
In classes, two variables can contain the reference of the same object and any operation on one variable can affect another variable.

Sandeep Singh · Answer

1)Class use for representing entities with larger volume of data, Structure use for representing entities with Smaller volume of data.
2)In Class :- Memory is allocated on Managed Heap so automatic memory management is possible thru Garbage Collector, In Structure :- Store on Stack memory so automatic memory management is not possible thru Garbage Collector but "Faster in access.

Ajay Gandhi · Answer

Private constructors are used to prevent creating instances of a class when there are no instance fields or methods, such as the Math class, or when a method is called to obtain an instance of a class. If all the methods in the class are static, consider making the complete class static.

Yatendra Sharma · Answer

Structure for value type and class for reference type
Structure stored in stack and class stored in the heap

Lalit Raghav · Answer

This example help you difference between Class and Struct
Analise out put of this console Application
class A
{
private string _Height;
private string _Weight;
public string Height
{
get
{
return _Height;
}
set
{
_Height = value;
}
}
public string Weight
{
get
{
return _Weight;
}
set
{
_Weight = value;
}
}
}
struct B
{
private string _Height;
private string _Weight;
public string Height
{
get
{
return _Height;
}
set
{
_Height = value;
}
}
public string Weight
{
get
{
return _Weight;
}
set
{
_Weight = value;
}
}
}
class Test1
{
static void Main(string[] args)
{
A objAOne = new A();
Console.WriteLine("Property Height " + objAOne.Height + "Weight " + objAOne.Weight);
objAOne.Height = "1";
objAOne.Weight = "1";
Console.WriteLine("Property Height " + objAOne.Height + "Weight " + objAOne.Weight);
//obj.ChangeProperty();
Console.WriteLine("Property Height " + objAOne.Height + "Weight " + objAOne.Weight);
Console.WriteLine("----------------------Assign Value to Another objcet 'ObjSecond'-----------------------------------");
A obASecond = objAOne;
Console.WriteLine("----------------------Assign Value to objcet 'ObjSecond' 3 & 3-----------------------------------");
obASecond.Height = "3";
obASecond.Weight = "3";
Console.WriteLine("----------------------Call to First object-----------------------------------");
Console.WriteLine("Property Height " + objAOne.Height + "Weight " + objAOne.Weight);
Console.WriteLine("----------------------Call to Second object-----------------------------------");
Console.WriteLine("Property Height " + obASecond.Height + "Weight " + obASecond.Weight);
Console.WriteLine("-------------------------Struct---------------------------------------");
B objBOne = new B();
Console.WriteLine("Property Height " + objBOne.Height + "Weight " + objBOne.Weight);
objBOne.Height = "1";
objBOne.Weight = "1";
Console.WriteLine("Property Height " + objBOne.Height + "Weight " + objBOne.Weight);
// objB.ChangeProperty();
Console.WriteLine("Property Height " + objBOne.Height + "Weight " + objBOne.Weight);
Console.WriteLine("----------------------Assign to Second object-----------------------------------");
B objBSecond = objBOne;
Console.WriteLine("----------------------Assign to Second object-----------------------------------");
Console.WriteLine("----------------------Assign Value to objcet 'ObjSecond' 3 & 3-----------------------------------");
objBSecond.Height = "3";
objBSecond.Weight = "3";
Console.WriteLine("----------------------Call first obj-----------------------------------");
Console.WriteLine("Property Height " + objBOne.Height + "Weight " + objBOne.Weight);
Console.WriteLine("----------------------Call second obj-----------------------------------");
Console.WriteLine("Property Height " + objBSecond.Height + "Weight " + objBSecond.Weight);
}
}

Pankaj Kumar Choudhary · Answer

1. Class are ref type and Struc are value type
2. Struc doesn't support inheritance except interface.
3. Class use heap and Struc use Stacks
4 Class use concept of boxing and unboxing but Struc doesn't use
5. members of struc are by default public where as in class members are private.
6. we can not create default constructor of struc

Abrar Ahmad Ansari · Answer

1:-Strucuter is a value type and class is a reference type
2:-Classes will support an Inheritance whereas Structures won't
3:-Classes can have explicitly parameterless constructors whereas structures can't.
4:-Member variable initialization is possible in class whereas in Structures, it is not.
5:The “this” keyword gives different meaning in structure and class. How?
In class, “this” keyword is classified as value type of class type within which it is used like inside instance constructor or instance method.
In structure, “this” keyword is classified as variable type of structure type within which it is used.

Munesh Sharma · Answer

http://dotnet-munesh.blogspot.in/2013/12/difference.html

Sunil Gaded · Answer

Stru
1.values types,so stored on stack
2.with or without using new keyword we can create the object of the stru's.
3.it consists only construters not destucter.
4.inside the no initilization takes place.
5.not possible to inhrit another struct but from interface possible

What are the Difference between Structure and Class??

13 Answers