Home » C# Programming » Control Instructions
  • Control Instructions - General Questions
1. 

What does the following C#.NET code snippet will print? 

int i = 0, j = 0; 

label:
    i++;
    j+=i;
if (i < 10)
{
    Console.Write(i +" ");
    goto label; 
}
A. Prints 1 to 9
B. Prints 0 to 8
C. Prints 2 to 8
D. Prints 2 to 9
E. Compile error at label:.
2. 

Which of the following is the correct output for the C#.NET program given below? 

int i = 20 ;
for( ; ; )
{
    Console.Write(i + " "); 
    if (i >= -10)
        i -= 4; 
    else 
        break;
}
A. 20 16 12 84 0 -4 -8
B. 20 16 12 8 4 0
C. 20 16 12 8 4 0 -4 -8 -12
D. 16 12 8 4 0
E. 16 8 0 -8
3. 

Which of the following statements is correct?
A. It is not possible to extend the if statement to handle multiple conditions using the else-if arrangement.
B. The switch statement can include any number of case instances with two case statements having the same value.
C. A jump statement such as a break is required after each case block excluding the last block if it is a default statement.
D. The if statement selects a statement for execution based on the value of a Boolean expression.
E. C# always supports an implicit fall through from one case label to another.
4. 

What is the output of the C#.NET code snippet given below? 

namespace IndiabixConsoleApplication
{
    public enum color
    { red, green, blue };
    
    class SampleProgram
    {
        static void Main (string[ ] args)
        {
            color c = color.blue;
            switch (c)
            {
                case color.red:
                    Console.WriteLine(color.red); 
                    break; 
                
                case color.green: 
                    Console.WriteLine(color.green); 
                    break; 
                
                case color.blue: 
                    Console.WriteLine(color.blue); 
                    break; 
            } 
        } 
    } 
}
A. red
B. blue
C. 0
D. 1
E. 2
5. 

Which of the following is the correct way to rewrite the following C#.NET code snippet given below? 

int i = 0; 
do
{
    Console.WriteLine(i);
    i+ = 1; 
} while (i <= 10);
A. 
int i = 0; 
do
{
    Console.WriteLine(i);
} until (i <= 10);
B. 
int i;
for (i = 0; i <= 10 ; i++)
    Console.WriteLine(i);
C. 
int i = 0; 
while (i <= 11)
{
    Console.WriteLine(i);
    i += 1; 
}
D. 
int i = 0;
do while ( i <= 10)
{
    Console.WriteLine(i); 
    i += 1;
}
E. 
int i = 0;
do until (i <= 10)
{
    Console.WriteLine(i);
    i+=1; 
}