How to declare a variable : Variable Declaration « Language « C Tutorial

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C Tutorial » Language » Variable Declaration 
1.5.2.How to declare a variable

A variable declaration serves three purposes:

  1. It defines the name of the variable.
  2. It defines the type of the variable (integer, real, character, etc.).
  3. It gives the programmer a description of the variable.
int answer;     /* the result of our expression */
  1. The keyword int tells C that this variable contains an integer value.
  2. The variable name is answer.
  3. The semicolon (;) marks the end of the statement.
  4. The comment is used to define this variable for the programmer.
1.5.Variable Declaration
1.5.1.Variables
1.5.2.How to declare a variable
1.5.3.Using a variable to store value
1.5.4.Initialize int value in declaration
1.5.5.Meaningful variable name
1.5.6.Define three variables and use assignment operator to assign value
1.5.7.Use printf to output variable
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