C# Interview Questions and Answers Part 5
1) what is the output?
static void Main(string[] args)
{
int val;
for (val = -5; val <= 5; val++)
{
switch (val)
{
case 0:
Console.Write("India");
break;
}
if (val > 0)
Console.Write("B");
else if (val < 0)
Console.Write("X");
}
Console.ReadLine();
}
OUTPUT :
XXXXXIndiaBBBBB
2) What is the output?
static void Main(string[] args)
{
char ch = Convert.ToChar('a' | 'b' | 'c');
switch (ch)
{
case 'A':
case 'a':
Console.WriteLine("case A | case a");
break;
case 'B':
case 'b':
Console.WriteLine("case B | case b");
break;
case 'C':
case 'c':
case 'D':
case 'd':
Console.WriteLine("case D | case d");
break;
}
Console.ReadLine();
}
OUTPUT :
case D | case d
3) What is the output?
static void Main(string[] args)
{
int i = 1, j = 1, val;
while (i < 25)
{
Console.Write(j + " ");
val = i + j;
j = i;
i = val;
}
Console.ReadLine();
}
OUTPUT :
1 1 2 3 5 8 13
4) Which of the following statements are correct?
- A switch statement can act on numerical as well as Boolean types.
- A switch statement can act on characters, strings and enumerations types.
- We cannot declare variables within a case statement if it is not enclosed by{ }.
- All of the expressions of the for statement are not optional.
Ans:-1,2
5) What is the output?
static void Main(string[] args)
{
float a = 4.5;
Console.WriteLine(a);
Console.ReadLine();
}
OUTPUT :
Error 1 Literal of type double cannot be implicitly converted to type 'float'
