Control Flow Statements in C Sharp
practice.

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i = 2, j = 4;
    switch (i + j * 2)
    {
    case 1 :
    case 2 :
        Console.WriteLine("1 and 2");
        break;
    case 3 to 10:
        Console.WriteLine("3 to 10");
        break;
    }
    Console.ReadLine();
}

For the incomplete C# program below, which of the C# code fragment will not result in an infinite loop?

static void Main(string[] args)
{
    int i = 1234 ,j = 0;
     /*ADD CODE HERE */
    Console.WriteLine(j);
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int x = 0;  
    while (x < 20)
    {
        while (x < 10)
        {
            if (x % 2 == 0)
            {
                Console.WriteLine(x);
            }
            x++;
        }
    }
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    float i = 1.0f, j = 0.05f;
    do
    {
        Console.WriteLine(i++ - ++j);
    }while (i < 2.0f && j <= 2.0f);
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    Console.WriteLine("HI");
    continue;
    Console.WriteLine("Hello");
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i = 0, j = 0;
    l1: while (i < 2)
    {  
        i++;
        while (j < 3)
        {
            Console.WriteLine("loop\n");
            goto l1;
        }
     }
    Console.ReadLine();
}

What will be the output of the following C# code?

{
    int i;
    Console.WriteLine("Hi");
    for (i = 1; i <= 10; i++)
        Program.Main(args);
    Console.ReadLine();
}

Which statement is correct among the mentioned statements?
i. The for loop works faster than a while loop
ii. for( ; ; )implements an infinite loop

Which of the following is not infinite loop?

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i = -10;
    for ( ;Convert.ToBoolean(Convert.ToInt32(i)) ;Console.WriteLine(i++)) ;
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i = 2, k = 3;
    switch (i - k)
    {
    case -1:
        ++i;
        ++k;
        break;
    case 2:
        --i;
        ++k;
        break;
    default:
        i += 3;
        k += i;
        break;
    }
    Console.WriteLine(i + "\n" + k);
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i = 1, j;
    do
    {
        for (j = 1; ; j++)
        {
            if (j > 2)
                break;
            if (i == j)
                continue;
            Console.WriteLine(i + " " + j);
        }
        i++;
    } while (i < 3);
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i;
    Console.WriteLine("enter value of i:");
    i = Convert.ToInt32(Console.ReadLine());
    if ( i % 2 == 0)
        goto even:
    else
    {
        Console.WriteLine("number is odd:");
        Console.ReadLine();
    }
    even:
    Console.WriteLine("number is even:");
    Console.ReadLine();
}
for i = 4.

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i = 2, j = 3, k = 4;
    switch (i + j - k)
    {
    case 0: case 2: case 4:
        ++i;
        k += j;
        break;
    case 1: case 3: case 5 :
        --i;
        k -= j;
        break;
    default:
        i += j;
        break;
    }
    Console.WriteLine(i + "\n" + j + "\n" + k);
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i = 1, j = 2, k = 3;
    do
    {
        Console.WriteLine((Convert.ToBoolean(Convert.ToInt32(i++))) 
        && (Convert.ToBoolean(Convert.ToInt32(++j))));
    }while (i <= 3);
    Console.ReadLine();
}

What will be the output of the following C# code?

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();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    float s = 0.1f;
    while (s <= 0.5f)
    {
        ++s;
        Console.WriteLine(s);
    }
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int x = 10;
    do
    {
        Console.WriteLine( x++);
    }
    while(Convert.ToBoolean(5) && Convert.ToBoolean(4) && Convert.ToBoolean(3) 
    && Convert.ToBoolean(2) && Convert.ToBoolean(1) && Convert.ToBoolean(0));    
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i;
    Console.WriteLine("enter value of i:");
    i = Convert.ToInt32(Console.ReadLine());
    if (i < 7)
    {
        i++;
        continue;
    }
    Console.WriteLine("final value of i:" +i);
    Console.ReadLine();
}

What will be the output of the following C# code?

static void Main(string[] args)
{
    int i = 0;
    if (i == 0)
    {
        goto label;
    }
    label: Console.WriteLine("HI...");
    Console.ReadLine();
}