This program attempts to declared a variable in an inner scope

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
/*  
   This program attempts to declared a variable 
   in an inner scope with the same name as one 
   defined in an outer scope. 
 
   *** This program will not compile. *** 
*/  
 
using System; 
 
public class NestVar {  
  public static void Main() {  
    int count;  
 
    for(count = 0; count < 10; count = count+1) { 
      Console.WriteLine("This is count: " + count);  
     
      int count; // illegal!!! 
      for(count = 0; count < 2; count++) 
        Console.WriteLine("This program is in error!"); 
    } 
  }  
}

1.	Declaring a variable.
2.	Initializing a variable.
3.	Variable default name
4.	Heap and Stack Memory
5.	Two reference type variables may refer (or point) to the same object
6.	Create a 4-bit type called Nybble
7.	Use new with a value type
8.	Init variable
9.	An attempt to reference an uninitialized variable
10.	Illustrates variable scope
11.	Demonstrate the use of readonly variables
12.	Uninitialized Values
13.	Int, float, double, decimal
14.	Demonstrate dynamic initialization
15.	Demonstrate block scope
16.	Demonstrate lifetime of a variable
17.	Demonstrate casting
18.	A promotion surprise
19.	Using casts in an expression
20.	Create an implication operator in C#
21.	declaring a reference type variable and creating an object the variable will reference
22.	Definite Assignment and Arrays
23.	Variable Scoping and Definite Assignment:Definite Assignment

This program attempts to declared a variable in an inner scope : Variable Definition « Language Basics « C# / C Sharp

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