Question

I am having problems with my java homework in class.

Write a program that will interactively read the name, age, weight in pounds, and height in inches for five people and output the BMI for each one. At the end of the program, it should output the average age, average height and average weight of the five participants.

IT HAS TO INCLUDE:

Declare and use a program constant of data type int named CONVERSION_FACTOR to represent the value 703.

Use the int data type for variables age, weight and height.

Print the calculated BMI and all averages using two decimal places.

Use the name BMIcalculator followed by your three initials for the class name.

I have no idea where to start. This is the first time I have tried working with java and my teacher just plopped me into this.

Answer 1

Program:-

Output:-

Code to copy:-

import java.io.*;

public class BMIcalculator

{

     public static void main(String args[]) throws IOException

     {

          int CONVERSION_FACTOR=703;

          double[] BMI=new double[5];

          String[] name=new String[5];

          int[] age=new int[5];

          int[] weight=new int[5];

          int[] height=new int[5];

          int sq;

          String strDouble;

          double sum1=0,sum2=0,sum3=0,sum4=0;

          double avg_age,avg_weight,avg_height,avg_BMI;

          BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

         

          for(int i=0;i<5;i++)

          {

              System.out.println("Enter your name > ");

              name[i]=br.readLine();

              System.out.println("Enter your age in years > ");

              age[i]=Integer.parseInt(br.readLine());

              System.out.println("Enter your weight in pounds > ");

              weight[i]=Integer.parseInt(br.readLine());

              System.out.println("Enter your height in inches > ");

              height[i]=Integer.parseInt(br.readLine());

              sq=height[i]*height[i];

              BMI[i]=(double)((double)weight[i]/sq)*CONVERSION_FACTOR;

              strDouble = String.format("%.2f", BMI[i]);

              System.out.println(name[i] + ", your BMI is: " + strDouble);             

          }

         

          for(int i=0;i<5;i++)

          {

              sum1=sum1+age[i];

              sum2=sum2+weight[i];

              sum3=sum3+height[i];

              sum4=sum4+BMI[i];

          }

         

          avg_age=sum1/5;

          avg_weight=sum2/5;

          avg_height=sum3/5;

          avg_BMI=sum4/5;

         

          System.out.println("Summary Statistics");

          strDouble = String.format("%.2f", avg_age);

          System.out.println("The average age of the participants is: " + strDouble);

          strDouble = String.format("%.2f", avg_weight);

          System.out.println("The average weight of the participants is: " + strDouble);

          strDouble = String.format("%.2f", avg_height);

          System.out.println("The average height of the participants is: " + strDouble);

          strDouble = String.format("%.2f", avg_BMI);

          System.out.println("The average BMI calculated by this study is: " + strDouble);

          System.out.println("That's all folks!");

     }

}