Available Answers

1. 1.

   Fill in the blanks.

   1. The ___________________ loop is preferred when the number of iteration is fixed.
   2. The ___________________ loop is preferred more for extraction of digits.
   3. The loop that iterates continuously is called ___________________ loop.
   4. The ___________________ separator marks the end of condition in a do-while loop.
   5. Braces are optional if there is only ___________________ statement to be executed inside a while loop.
2. 2.

   State whether the following statements are True (T) or False (F).

   1. The 'for' loop is more preferable in case you need to extract a digit.
   2. The do-while loop is an entry controlled loop.
   3. If the test-expression is true in a do-while loop, the loop continues.
   4. The initialization and updation are in the same line in a while loop.
   5. Both while and do-while are used if the number of iterations is not fixed.
3. 3.

   Give the output of the following program fragment (a):

   class Loop1
   {
       public static void main()
       {
        int b;
        b=1;
           while (b<=19)
           {
              System.out.println(b+" ");
              b+=2;
           }
       }
   }

4. 4.

   Write the general syntax of 'while' loop.

5. 5.

   Write a program to input an integer and find the sum of its digits.

6. 6.

   Write a program to input an integer and find the product of its digits.