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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
Discuss
Answer: (a).Prints 1 to 9
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
Discuss
Answer: (c).20 16 12 8 4 0 -4 -8 -12
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.
Discuss
Answer: (d).The if statement selects a statement for execution based on the value of a Boolean expression.
4. What is the output of the C#.NET code snippet given below? 


namespace CompSciBitsConsoleApplication
{
    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
Discuss
Answer: (b).blue
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;
}
a. A
b. B
c. C
d. D
Discuss
Answer: (b).B
6. What will be the output of the C#.NET code snippet given below? 

int val;
for (val = -5; val <= 5; val++)
{
    switch (val)
    {
        case 0:
            Console.Write ("CompSci"); 
            break;
    }
    
    if (val > 0)
        Console.Write ("B"); 
    else if (val < 0)
        Console.Write ("X");
}
a. XXXXXCompSci
b. CompSciBBBBB
c. XXXXXCompSciBBBBB
d. BBBBBCompSciXXXXX
Discuss
Answer: (c).XXXXXCompSciBBBBB
7. What will be the output of the C#.NET code snippet given below? 

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;
}
a. case A | case a
b. case B | case b
c. case D | case d
d. Compile Error
Discuss
Answer: (c).case D | case d
8. Which of the following is the incorrect form of Decision Control instruction?
a. if (Condition1)
{// Some statement}
b. if (Condition1) {// Some statement}
else {// Some statement}
c. if (Condition1) {// Some statement}
else {// Some statement}
else if ( Condition2){//Some statement}
d. if ( Condition1 ) {// Some statement}
else if ( Condition2 ) {// Some statement}
else {// Some statement}
Discuss
Answer: (c).if (Condition1) {// Some statement}
else {// Some statement}
else if ( Condition2){//Some statement}
9. Which of the following code snippets are the correct way to determine whether a is Odd or Even? 
1.
int a;
String res; 
if (a % 2 == 0)
    res = "Even"; 
else 
    res = "Odd";

2.
int a; 
String res; 
if (a Mod 2 == 0) 
    res = "Even"; 
else
    res = "Odd";

3.
int a;
Console.WriteLine(a Mod 2 == 0 ? "Even": "Odd");

4.
int a; 
String res;
a % 2 == 0 ? res = "Even" : res = "Odd";
Console.WriteLine(res);
a. 1, 3
b. 1 Only
c. 2, 3
d. 4 Only
Discuss
Answer: (b).1 Only
10. Which of the following can be used to terminate a while loop and transfer control outside the loop?
1. exit while
2. continue
3. exit statement
4. break
5. goto
a. 1, 3
b. 2, 4
c. 3, 5
d. 4, 5
Discuss
Answer: (d).4, 5
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