Submitted by Anonymous (not verified) on Mon, 02/25/2013 - 23:24

Workshop
To help solidify your understanding of this hour's lesson, you are encouraged to answer the quiz questions and finish the exercises provided in the Workshop before you move to the next lesson. The answers and hints to the questions and exercises are given in Appendix E, "Answers to Quiz Questions and Exercises."

 

Quiz

1.  Are the integer divisions of 134/100 and 17/10 equal?

2.  Is the result of 3000 + 1.0 a floating-point number? How about 3000/1.0?

3.  How can you represent the following numbers in scientific notation?

3500
0.0035
-0.0035

4. Are the following variable names valid?

  • 7th_calculation
  •  Tom's_method
  • _index
  • Label_1

Exercises

  1. Write a program that prints out the numeric values of characters Z and z.
  2. Given two numeric values, 72 and 104, write a program to print out the corresponding two characters.
  3. For a 16-bit integer variable, can you assign the variable with an integer value of 32768?
  4. Given the declaration double dbl_num = 123.456;, write a program that prints out the value of dbl_num in both floating-point and scientific notation formats.
  5. Write a program that can print out the numeric value of the newline character (\n). (Hint: assign `\n' to a character variable.)

 

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The while Loop

The while Loop

The while statement is also used for looping. Unlike the situation with the for statement, there is only one expression field in the while statement.

The general form of the while statement is

while (expression) {

Question and Answer

Question and Answer

    Q How does a for loop work?

Exercises : Answer the following Question

To help you solidify your understanding of this hour's lesson, you are encouraged to try to answer the quiz questions and finish the exercises provided in the Workshop before you move to the next lesson.

 

Working with the Cast Operator

Playing with the Cast Operator

In C, you can convert one data type to a different one by prefixing the cast operator to the operand.

The general form of the cast operator is

(data-type)x

Question and Answer

Question and Answer

    Q What is the difference between the pre-increment operator and the post-increment operator?