Exercises : Answer the following Question

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

Write a program that prints out the numeric values of characters Z and z.
Given two numeric values, 72 and 104, write a program to print out the corresponding two characters.
For a 16-bit integer variable, can you assign the variable with an integer value of 32768?
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.
Write a program that can print out the numeric value of the newline character (\n). (Hint: assign `\n' to a character variable.)

39 views

Adding More Expressions into for

Adding More Expressions into for

The C language allows you to put more expressions into the three expression fields in the for statement. Expressions in a single expression field are separated by commas.

The Null Statement

The Null Statement

Looping Under the for Statement

Looping Under the for Statement

The general form of the for statement is

for (expression1; expression2; expression3) { statement1; statement2; . . . }

Using Nested Loops

Using Nested Loops

You can put a loop inside another one to make nested loops. The computer will run the inner loop first before it resumes the looping for the outer loop.

Listing 7.7 is an example of how nested loops work.

The do-while Loop

The do-while Loop

You may note that in the for and while statements, the expressions are set at the top of the loop. However, in this section, you're going to see another statement used for looping,