csharp

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

1. static void Main(string[] args)

2. {

3. int i = 1, j = 2, k = 3;

4. do

5. {

6. Console.WriteLine((Convert.ToBoolean(Convert.ToInt32(i++)))

7. && (Convert.ToBoolean(Convert.ToInt32(++j))));

8. }while (i <= 3);

9. Console.ReadLine();

10. }

• a) 0 0 0
  
  
  

• b) True True True

• c) 1 1 1

• d) False False False

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

1. static void Main(string[] args)

2. {

3. float i = 1.0f, j = 0.05f;

4. do

5. {

6. Console.WriteLine(i++ - ++j);

7. }while (i < 2.0f && j <= 2.0f);

8. Console.ReadLine();

9. }

• a) 0.05
  
  
  

• b) -0.05

• c) 0.95

• d) -0.04999995

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

1. static void Main(string[] args)

2. {

3. int i = 1, j = 5;

4. do

5. {

6. Console.WriteLine(i = i++ * j);

7. }while (i <= 10);

8. Console.ReadLine();

9. }

• a) 5 10 15 20 25 30 35 40 45 50
  
  
  

• b) 5 25

• c) 5 11 16 21 26 31 36 41 46 51

• d) 5 30

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

1. static void Main(string[] args)

2. {

3. int i = 1234 ,j = 0;

4. /*ADD CODE HERE */

5. Console.WriteLine(j);

6. }

• a)

  do { j = j + (i % 10); }while ((i = i / 10)!= 0);

• b)

  do { j = j + (i % 10); }while ((i / 10)!= 0);

• c)

  do { j = j + (i % 10); }while ((i % 10)!= 0);

• d)

  do { j = j + (i % 10); }while ((i/10 == 0)!= 0);

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

1. static void Main(string[] args)

2. {

3. long x;

4. x = Convert.ToInt32(Console.ReadLine());

5. do

6. {

7. Console.WriteLine(x % 10);

8. }while ((x = x / 10) != 0);

9. Console.ReadLine();

10. }

11. enter x = 1234.

• a) number of digits present in x
  
  
  

• b) prints ‘1’

• c) prints reverse of x

• d) prints sum of digits of ‘x’

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

1. static void Main(string[] args)

2. {

3. long x;

4. x = Convert.ToInt32(Console.ReadLine());

5. do

6. {

7. Console.WriteLine(x % 10);

8. }while ((x = x / 10) != 0);

9. Console.ReadLine();

10. }

11. enter x = 1234.

• a) number of digits present in x
  
  
  

• b) prints ‘1’

• c) prints reverse of x

• d) prints sum of digits of ‘x’

What is the correct syntax for do while loop?

• a)

  do; { statement; }while (condition);

• b)

  do(condition) { statement; }while;

• c)

  do { statement; }while (condition)

• d)

  do { statement; }while (condition);

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

1. static void Main(string[] args)

2. {

3. int x = 10;

4. do

5. {

6. Console.WriteLine( x++);

7. }

8. while(Convert.ToBoolean(5) && Convert.ToBoolean(4) && Convert.ToBoolean(3)

9. && Convert.ToBoolean(2) && Convert.ToBoolean(1) && Convert.ToBoolean(0));

10. Console.ReadLine();

11. }

• 13

• 15

• 11

• 10

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

1. static void Main(string[] args)

2. {

3. int i, j;

4. for (i = 1; i <= 3; i++)

5. {

6. j = 1;

7. while (i % j == 2)

8. {

9. j++;

10. }

11. Console.WriteLine(i + " " + j);

12. }

13. Console.ReadLine();

14. }

• a) 11 21 31
  
  
  

• b) 1 12 13 1

• c) 11 21 31

• d) 1 1 2 1 3 1

Correct syntax for while statement is:

• 1. while

  2. {

  3.  

  4.  

  5.  

  6. }(condition);

• 1. while(condition)

  2. {

  3.  

  4.  

  5. };

• 1. while(condition)

  2. {

  3.  

  4.  

  5. }

• 1. while(condition);

  2. {

  3.  

  4.  

  5. }