JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java Variables

A variable is a container that holds values that are used in a Java program. In java, all variables must be declared before they are going to be used. The syntax for variable declaration is given below:

type identifier1, identifier2, identifier3;

Here type can be any java primitive datatype or it can be a class or interface. Here identifier is name of the variable.

Example:

int a,b;
char c;
boolean status;

Before using the variable, we need to initialize it. The syntax for initialization is given below:

Example:

a=10;
b=12;
c='a';
status=false;

We can club declaration and initialization into one step as given below:

int a=10,b=12;
char c='a';
boolean status=false;

Next Page: Java Arrays

Knowledge Centre
Java class can be private?
We can not declare top level class as private. Java allows only public and default modifier for top level classes in java. Inner classes can be private.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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