ZCW-MetricConversions-BlueJ/ConversionTool.java

public class ConversionTool {


    public static void main(String[] args) {}
    
        public static float CentimetersToInches(float centimeters) {
            
            float inches = centimeters * 0.393701f;           
            if (centimeters <= 0) {
                return 0;
            }
            else {
                return inches;
            }
    }
        
    public static float InchesToCentimeters(float inches) {
        float centimeters = 2.54f * inches;
        
        if (inches <= 0) {
            return 0;
        
        }
        else {
            return centimeters;
        }
    }
    
    public static float FeetToMeters(float feet) {
        float meters = InchesToCentimeters(feet * 12) / 100f;
        
        if (feet <= 0) {
            return 0;
        }
        else {
            return meters;
        }
    }
    
    public static float MetersToFeet(float meters) {
        float feet = CentimetersToInches(meters * 100) / 12f;
        
        if (meters <= 0) {        
            return 0;
        }
        else {
            return feet;
        }
    }
    
    public static float FahrenheitToCelsius(float fahrenheit) {
        float celsius = (fahrenheit - 32) / 1.8f;
        
        return celsius;
    }
    
    public static float CelsiusToFahrenheit(float celsius) {
        float fahrenheit = (celsius * 1.8f) + 32;
        return fahrenheit;
    }
    
    public static float MphToKph(float mph) {
        
        if (mph <= 0) {
            return 0;
        }
        else {
            return mph * 1.60934f;
        }
    }
    
    public static float KphToMph(float kph) {
        
        if (kph <= 0) {
            return 0;
        }
        else {
            return kph * 0.621371f;
        }
    }
}