BMI Project

/**
 *BMI Project
 *
 * Zain Arfi
 * @version (a version number or a date)
 */
import java.util.*;
public class BMI_Project
{
    public static void main(String[] args)
    {
        Scanner console = new Scanner(System.in);
        System.out.println("What is person one's height in inches?");
        int height1 = console.nextInt();
        System.out.println("What is person two's height in inches");
        int height2 = console.nextInt();
        System.out.println("What is person one's weight in pounds?");
        int weight1 = console.nextInt();
        System.out.println("What is person two's weight in pounds?");
        Calculate(height1, height2, weight1, weight2);

    }
    public static string Calculate(int h1, int h2, int w1, int w2)
    {
        double Bmi1 = w1 / (h1 * h1) * 703;
        double Bmi2 = w2 / (h2 * h2) * 703;
        double diff = Math.abs(Bmi1 - Bmi2);
        return(
                if((Bmi1 >= 30))
                {
                    System.out.println("Person 1 BMI =" + Bmi1);
                    System.out.println("obese");
                }
                else if((Bmi1 >= 25) && (Bmi1 <= 29.9))
                {
                    System.out.println("Person 1 BMI =" + Bmi1);
                    System.out.println("overweight");
                }
                else if((Bmi1 >=18.5) && (Bmi1 <= 24.9))
                {
                    System.out.println("Person 1 BMI =" + Bmi1);
                    System.out.println("normal");
                }
                else if((Bmi1 <= 18.5))
                {
                    System.out.println("Person 1 BMI =" + Bmi1);
                    System.out.println("underweight");
                }
                else if((Bmi2 >= 30))
                {
                    System.out.println("Person 2 BMI =" + Bmi1);
                    System.out.println("obese");
                }
                else if((Bmi2 >= 25) && (Bmi2 <= 29.9))
                {
                    System.out.println("Person 2 BMI =" + Bmi1);
                    System.out.println("overweight");
                }
                else if((Bmi2 >=18.5) && (Bmi2 <= 24.9))
                {
                    System.out.println("Person 2 BMI =" + Bmi1);
                    System.out.println("normal");
                }
                else if(Bmi2 <= 18.5)
                {
                    System.out.println("Person 2 BMI =" + Bmi1);
                    System.out.println("underweight");
                }
                System.out.println("Difference =" + diff);
               );
            }
        }