Here is a step-by-step guide to creating a Java program that calculates the Body Mass Index (BMI) for customers of Star Fitness Club:

1. First, create a class named `Customer`:

```java
public class Customer {
private double weight;
private double height;
//...
}
```

2. Inside the `Customer` class, create two private instance variables `weight` and `height` of type `double`.

3. Create a constructor for the `Customer` class that takes two parameters for `weight` and `height`:

```java
public Customer(double weight, double height) {
this.weight = weight;
this.height = height;
}
```

4. Create a method `calculateBMI` that calculates the BMI using the formula `weight/((height/100) *(height/100))`:

```java
public double calculateBMI() {
return weight / ((height / 100) * (height / 100));
}
```

5. Create a method `getFitnessStatus` that returns a `String` indicating the fitness status of the customer based on their BMI:

```java
public String getFitnessStatus() {
double bmi = calculateBMI();
if (bmi = 25) {
return "You are overweight. Reduce " + (bmi - 25) + " kg to be fit.";
} else if (bmi = 18.5) {
return "You are fit and healthy.";
} else {
return "You are underweight. Gain " + (18.5 - bmi) + " kg to be fit.";
}
}
```

6. Now, create a `main` method to get the input from the user and display the output:

```java
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter weight in kg");
double weight = scanner.nextDouble();
System.out.println("Enter height in cm");
double height = scanner.nextDouble();
Customer customer = new Customer(weight, height);
System.out.printf("Your BMI is %.2f. %s
", customer.calculateBMI(), customer.getFitnessStatus());
}
```

This program will calculate the BMI of a customer and print their fitness status based on the BMI.

Question

Here is a step-by-step guide to creating a Java program that calculates the Body Mass Index (BMI) for customers of Star Fitness Club:

1. First, create a class named `Customer`:

```java
public class Customer {
    private double weight;
    private double height;
    //...
}
```

2. Inside the `Customer` class, create two private instance variables `weight` and `height` of type `double`.

3. Create a constructor for the `Customer` class that takes two parameters for `weight` and `height`:

```java
public Customer(double weight, double height) {
    this.weight = weight;
    this.height = height;
}
```

4. Create a method `calculateBMI` that calculates the BMI using the formula `weight/((height/100) *(height/100))`:

```java
public double calculateBMI() {
    return weight / ((height / 100) * (height / 100));
}
```

5. Create a method `getFitnessStatus` that returns a `String` indicating the fitness status of the customer based on their BMI:

```java
public String getFitnessStatus() {
    double bmi = calculateBMI();
    if (bmi >= 25) {
        return "You are overweight. Reduce " + (bmi - 25) + " kg to be fit.";
    } else if (bmi >= 18.5) {
        return "You are fit and healthy.";
    } else {
        return "You are underweight. Gain " + (18.5 - bmi) + " kg to be fit.";
    }
}
```

6. Now, create a `main` method to get the input from the user and display the output:

```java
public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter weight in kg");
    double weight = scanner.nextDouble();
    System.out.println("Enter height in cm");
    double height = scanner.nextDouble();
    Customer customer = new Customer(weight, height);
    System.out.printf("Your BMI is %.2f. %s
", customer.calculateBMI(), customer.getFitnessStatus());
}
```

This program will calculate the BMI of a customer and print their fitness status based on the BMI.

Knowee AI · Accepted Answer