Java Syntax Basics-variables

The concept of variables:

A storage area in memory

The zone has its own name (variable name) and type (data type)

Data in this region can vary from one type to the same range

Why do you define variables:

Used to keep constant of the same type, and can be reused

Use variables Note:

The scope of the variable ( valid between a pair of {} )

Initialize Value , save the constants first.

To define the format of a variable:

variable name of data type = initialization value;

Understanding: Variables are like unknowns in mathematics.

Java Syntax Basics-variables