Question

我试图让方法相互调用并产生bmi计算。如何将这些方法链接在一起以便打印bmi计算？

public class BodyMassIndex {
    public static String bodyMassIndex(double weight, double height)
    {
        double bmi = weight / (height*height);    
        if (bmi < 16)
        System.out.println("Seriously underweight");
        else if  (bmi >= 16 && bmi < 18)
        System.out.println("Underweight");
        else if (bmi >= 18 && bmi < 24)
        System.out.println("Normal weight");
        else if (bmi >= 24 && bmi < 29)
        System.out.println("Overweight");
        else if (bmi >= 29 && bmi < 35)
        System.out.println("Seriously overweight");
        else if (bmi >= 35 )
        System.out.println("Obese");
        return null; 
    } 
    public static void main(String[] args){
        double m; 
        double kg;   
        Scanner input = new Scanner(System.in);
        System.out.println("Enter weight (KG): ");
        kg = input.nextDouble();
        System.out.println("Enter height (M): ");
        m = input.nextDouble(); 
    }

我的代码如上所示。

Answer 1

public class BodyMassIndex {
public static void bodyMassIndex(double weight, double height)
{
    double bmi = weight / (height*height);
    if (bmi < 16)
        System.out.println("Seriously underweight");
    else if  (bmi >= 16 && bmi < 18)
        System.out.println("Underweight");
    else if (bmi >= 18 && bmi < 24)
        System.out.println("Normal weight");
    else if (bmi >= 24 && bmi < 29)
        System.out.println("Overweight");
    else if (bmi >= 29 && bmi < 35)
        System.out.println("Seriously overweight");
    else if (bmi >= 35 )
        System.out.println("Obese");


}


public static void main(String[] args){

    double m;
    double kg;

    Scanner input = new Scanner(System.in);

    System.out.println("Enter weight (KG): ");
    kg = input.nextDouble();

    System.out.println("Enter height (M): ");
    m = input.nextDouble();

    bodyMassIndex(kg, m);

}

}

Answer 2

在阅读用户 kg 和 m 后，调用方法 bodyMassIndex

System.out.println("Enter weight (KG): ");
kg = input.nextDouble();

System.out.println("Enter height (M): ");
m = input.nextDouble(); 

bodyMassIndex(kg, m);

如何获取一个方法来调用另一个方法

2 个答案: