Question

I'm trying to write a feet to meters and centimeters program and I'm looking for a little help so I can see how close I got. It should do the following:

• Write a convertToMetric class that has the following field:
  • standard - holds a double, standard length value in feet.
• The class should have the following methods:
  • Constructor - that accepts a length in feet (as a double) and stores it in the standard field.
  • setStandard - accepts a standard length in feet and stores it in standard.
  • getStandard - returns the value of the standard field, as a length in feet, no conversion required.
  • getMeters - returns the value of the standard field converted to meters.
  • getCentimeters - returns the value of the standard field converted to centimeters
• A second class will be created and used to test the new object class. This, executable class, is to instantiate an object of 'convertToMetric' type. Then it will allow the user to use keyboard input to input a value for standard. That value will then be converted to meters and centimeters, and displayed.

Answer 1

Solution for the above java program is provided below. Please comment if you have any doubt.

ConvertToMetricMain.java

import java.util.Scanner;

public class ConvertToMetricMain {
    public static void main(String[] args) {
        // Create scanner object
        Scanner sc=new Scanner(System.in);
        // Create object of convertToMetrric class
        convertToMetric c=new convertToMetric();
        // Input value from keyboard
        System.out.println("Input a value for standared: ");
        double value=sc.nextDouble();
        // Set value
        c.setStandard(value);
        // Get value in meters
        double valueInMeter=c.getMeters();
        // Get value in centimeters
        double valueInCentimeter=c.getCentimeters();
        // Display the values
        System.out.println("The standard value in meter: "+c.getMeters());
        System.out.println("The standard value in centimeter: "+c.getCentimeters());
    }
  
}

convertToMetric.java

// Class declaaration
class convertToMetric {
    double standard;
  
    // Constructor
    public void convertToMetric(double length)
    {
        standard=length;
    }
  
    // Function to set the value
    public void setStandard(double length)
    {
        standard=length;
    }
  
    // Function to return the value
    public double getStandard()
    {
        return standard;
    }
  
    // Function to convert it it meter
    public double getMeters()
    {
        return standard*0.3048;
    }
  
    // Function to convert it to centimeter
    public double getCentimeters()
    {
        return standard*30.48;
    }
}

Output: