import java. io.*;
class MiniProjek
{
public static void main( String[ ] args ) throws IOException
{
BufferedReader dataIn = new BufferedReader(new InputStreamReader( System.in) );
String str;
{ double length,width,area,base,height,radius,length_of_side;
int choose=0;
System.out.println("Calculation Area Of Geometry");
System.out.println("Please Enter Your Geometry Shape:");
System.out.println("[1].Rectangle");
System.out.println("[2].Triangle");
System.out.println("[3].Circle");
System.out.println("[4]Square");
switch(choose)
{
case 0:
System.out.println("Sila pilih ");
break;
break;
case 1 :
System.out.println("Calculation Area Of Rectangle ");
System.out.println ("Enter Your Length =");
length = Integer.parseInt(dataIn.readLine());
System.out.println ("Enter Your Width = ");
width = Integer.parseInt(dataIn.readLine());
area = length*width;
System.out.println("The Length is " + length);
System.out.println("The Width is " + width);
System.out.println("Area Of Rectangle is " + area);
break;
case 2 :
System.out.println("Calculation Area Of Triangle");
System.out.println ("Enter Your Base =");
base = Integer.parseInt(dataIn.readLine());
System.out.println ("Enter Your Height = ");
height = Integer.parseInt(dataIn.readLine());
area = 0.5*base*height;
System.out.println("The Base is " + base);
System.out.println("The Height " + height);
System.out.println("Area Of Triangle " + area);
break;
case 3 :
System.out.println("Calculation Area Of Circle");
System.out.println ("Enter Your Radius =");
radius = Integer.parseInt(dataIn.readLine());
area = java.lang.Math.PI*radius*radius;
System.out.println("The Radius is " + radius);
System.out.println("Area Of Circle is " + area);
break;
case 4 :
System.out.println("Calculation Area Of Square");
System.out.println ("Enter Your Length Of Side =");
length_of_side = Integer.parseInt(dataIn.readLine());
area = length_of_side*length_of_side;
System.out.println("The Length Of Side is " + length_of_side);
System.out.println("Area Of Square is " + area);
break;
default:
System.out.println("Your Input Is Wrong!!! Please Try Again Later. Thank You");
break;
}
}
}
}
