Write a program to find area of geometrical figures using method.
Source code:
import java.io.*; class Area
{
public static double circleArea(double r)
{
return Math.PI*r*r;
}
public static double squareArea(double side)
{
return side*side;
}
public static double rectArea(double width, double height)
{
return width*height;
}
public static double triArea(double base, double height1)
{
return 0.5*base*height1;
}
public static String readLine()
{
String input=" ";
BufferedReader in=new BufferedReader(new InputStreamReader(System.in)); try
{
input = in.readLine();
}catch(Exception e)
{
System.out.println("Error" + e);
}
return input;
}
public static void main(String args[])
{
System.out.println("Enter the radius");
Java Lab Manual Page 6
Double radius=Double.parseDouble(readLine()); System.out.println("Area of circle = " + circleArea(radius));
System.out.println("Enter the side");
Double side=Double.parseDouble(readLine()); System.out.println("Area of square = "+squareArea(side));
System.out.println("Enter the Width");
Double width=Double.parseDouble(readLine()); System.out.println("Enter the height");
Double height=Double.parseDouble(readLine()); System.out.println("Area of Rectangle = " + rectArea(width,height));
System.out.println("Enter the Base");
Double base=Double.parseDouble(readLine()); System.out.println("Enter the Height");
Double height1=Double.parseDouble(readLine()); System.out.println("Area of traingle ="+triArea(base,height1));
}
}
