Submitted by tushar pramanick on Mon, 02/25/2013 - 10:56

Question and Answer

Q1. What is the difference between a constant and a variable?
A The major difference is that the value of a constant cannot be changed, while the value of a variable can. You can assign different values to a variable whenever it's necessary in your C program.

Q2. Why do you need a statement block?
Ans. Many C keywords can only control one statement. A statement block provides a way to put more than one statement together and put the statement block under the control of a C keyword. Then, the statement block is treated as a single statement.

Q3. Which arithmetic operators have a higher precedence?

Ans. Among the five arithmetic operators, the multiplication, division, and remainder operators have a higher precedence than the addition and subtraction operators.

Q4. How many parts does a function normally have?

Ans. A function normally has six parts: the function type, the function name, the arguments, the opening brace, the function body, and the closing brace.

Related Items

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?