Boxing and unboxing

Question

Need understandable definition with proper example ,boxing and unboxing

Elavarasan R · Answer

Hi Avinash Venkat, Boxing: Boxing considered as the implicit conversion of value type to object or reference type. Unboxing: It is the opposite of Boxing, the explicit conversion of reference type to value type. Example 1: int Value = 12; // int 12 will assigned to num object Boxed = Value; // Boxing int UnBoxed = ( int ) Boxed; // Unboxing Example 2: Boxing & UnBoxing in C# Array list int a = 5; ArrayList arr = new ArrayList(); arr.Add(a); // Boxing int b = ( int )arr[0]; // UnBoxing Example 3: 3.1 Boxing using System; class Boxing { static public void Main() // Main Method { // assigned int value // 200 to Value int Value = 200; object obj = Value; // boxing Value = 100; // Value to be change System.Console.WriteLine ( "Value - type of Value is : {0}" , Value); System.Console.WriteLine ( "Object - type of obj is : {0}" , obj); } } Output Value- type of Value is : 100 Object-type of obj is: 200 3.2 UnBoxing static public void Main() // Main Method { // assigned int value // 53 to num int num = 53; object obj = num; // boxing int i = ( int )obj; // unboxing // Display result Console.WriteLine( "Value of ob object is : " + obj); Console.WriteLine( "Value of i is : " + i); } } Output: Value of ob object is : 53 Value of i is : 53 Refereces: https://www.c-sharpcorner.com/article/boxing-and-unboxing-in-C-Sharp/ https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/types/boxing-and-unboxing https://www.tutorialspoint.com/Boxing-and-Unboxing-in-Chash

Chittaranjan Swain · Answer

Hi avinash, Refer below links, https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/types/boxing-and-unboxing https://www.c-sharpcorner.com/interview-question/what-is-the-real-use-of-boxing-and-unboxing https://www.dotnettricks.com/learn/csharp/understanding-boxing-and-unboxing-in-csharp https://www.codeproject.com/Articles/2225/Boxing-and-unboxing-in-C

Mageshwaran R · Answer

Hi, Please refer the below link, it might helps you https://www.geeksforgeeks.org/c-sharp-boxing-unboxing/