import java.util.Scanner;
public class Area{
 public static void main(String[] args){
  Scanner keyboard = new Scanner(System.in);
  System.out.println("Enter s for area of a square\nEnter t for area of a triangle");
  String letter = keyboard.next();
  switch(letter){
   case "s":
    Scanner kb1 = new Scanner(System.in);
    System.out.print("Please enter the side of the square: ");
    double side = kb1.nextDouble();
    System.out.print("The area of the square is: " +  (Math.pow(side, 2)) );
    break;
   case "t":
    Scanner kb2 = new Scanner(System.in);
    System.out.println("Please enter the base and height of the triangle:- ");
    System.out.print("Base: ");
    double base = kb2.nextDouble();
    System.out.print("Height: ");
    double height = kb2.nextDouble();
    System.out.print("The area of the square is: " +  (0.5 * base * height) );
    break;
   default:{
    System.out.println("Please enter either \"s\" or \"t\" in order to continue.");
    break;
   }
  }
 }
}