Exercises : Answer the following Question

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

Quiz

What are the lowest-level and highest-level languages mentioned in this book?
Can a computer understand a program written in C?What do you need to translate a program written in C into the machine-understandable code (that is, binary code)?
If needed, can a C program be reused in another C program?
Why do we need the ANSI standard for the C language?

Summary

In this Chapter you've learned the following:

C is a general-purpose programming language.
C is a high-level language that has the advantages of readability, maintainability, and portability.
C is a very efficient language that allows you to get control of computer hardware and peripherals.
C is a small language that you can learn easily in a relatively short time.
Programs written in C can be reused.
Programs written in C must be compiled and translated into machine-readable code before the computer can execute them.
C provides many programming languages, such as Perl, C++, and Java, with basic concepts and useful features.
The ANSI standard for C is the standard supported by all C compiler vendors to guarantee the portability of C.
You can use any C compilers that support the ANSI standard and compile all C programs in this book.

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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,