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AIM: Write a program in java to demonstrate the use of implementing interfaces and rectangle, circle classes which implement area.
PROGRAM:
package Area;
public class Rectangle
{
public void rectangle(int l, int b)
{
System.out.println("Area of rectangle: "+(l*b));
}
}
package Area;
public class Square
{
public void square(int a)
{
System.out.println("Area of square: "+(a*a));
}
}
package Area;
public class Circle
{
public void circle(int r)
{
System.out.println("Area of circle: "+(3.14*r*r));
}
}
package AreaPackage;
import Area.*;
public class Main
{
public static void main(String[] args)
{
Area.Rectangle obj1= new Area.Rectangle();
obj1.rectangle(20,30);
Area.Square obj2= new Area.Square();
obj2.square(20);
Area.Circle obj= new Area.Circle();
obj.circle(30);
}
}
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