Java program to find area of geometric figures using method overloading.

import java.util.*;
import java.io.*;
import java.lang.*;
class geofig
{

    double area(double r)
    {
        return(3.14*r*r); //Cicle
    }

    float area(float s)
    {
        return(s*s); //Square
    }
 
    double area(double b,double h)
    {
        return(0.5*b*h); //Triangle
    }

}
class geonew
{
    public static  void main(String arg[]) throws IOException
    {
        DataInputStream ob=new DataInputStream(System.in);
        geofig g = new geofig();
        System.out.println("enter double value for radius of circle");
        double r=Double.valueOf(ob.readLine()).doubleValue();
        System.out.println("area of circle="+g.area(r));
        System.out.println("enter float value for side of a square");
        float s=Float.valueOf(ob.readLine()).floatValue();
        System.out.println("area of square="+g.area(s));
        System.out.println("enter double value for base & height of triangle");
        double b1=Double.valueOf(ob.readLine()).doubleValue();
        double h=Double.valueOf(ob.readLine()).doubleValue();
        System.out.println("area of triangle="+g.area(b1,h));
    }
}