How to Calculate Area of Rectangle
In
this section we will learn how to calculate area of rectangle. The area of
rectangle is specifies an area in a coordinate space that is enclosed by the
rectangle object. In the program coordinate of space its length and breadth. A
rectangle area are define in the public static fileds. This program also provide
the implementation of rectangle values and illustration with the complete java
source code.
Description of this program
In this program explain the static method how to
display the rectangle values. First of all we have to define class name "StaticVariable".
We are going to define one rectangle method which takes two parameters of type integer.
To calculate the area of the rectangle define one method calculate which will
calculate the area of the rectangle. Now inside the main method create object of
class StaticVariables. To initialize the value of length and breadth call the
rectangle method inside main method. The area will be calculated by calling the
calculate method inside the main method by using the StaticVariable
object that is staticVariables. This method will return
an integer type value, and the area of the rectangle will be displayed by using the
println() method of the System class.
Here is the code of this program
class StaticVariables
{
public static int length;
public static int breadth;
public void rectangle(int length, int breadth)
{
this.length = length;
this.breadth = breadth;
}
public int calculate()
{
return(length*breadth);
}
public static void main(String[] args)
{
StaticVariables staticVariables = new StaticVariables();
staticVariables.rectangle(5,5);
int i = staticVariables.calculate();
System.out.println("The area is " + i);
}
}
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