Need help with a Java Program

[feathers75]

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First,

Hello eveyone and I am new to Java.

I am trying to create a Java program that will calculate a person BMI based on user input of weight (in pounds) and heigh (in inches) and then display what the BMI is and give the a message that tells them where they fit plus I want to then be able to tell them how much weight they need to loss (or gain if underweight) to attain a normal BMI (25).

I have got it all to work except then last part (calculating how much they need to gain or loss to obtain a 25 BMI).

Here is the code I have so far:

import java.util.Scanner;
import java.lang.Math;
 
 
public class Hw05{
 
public static void main (String args[]) {
Scanner myScanner= new Scanner (System.in);
System.out.print( "Enter your weight (in pounds): " );
 
int weight= myScanner.nextInt();
System.out.print( "Enter your height (in inches): " );
 
int height = myScanner.nextInt(); 
 
double BMI = 704.5 * weight/(height*height); 
 
System.out.println("Your Body Max Index = " + Math.round(BMI*100)/100);
 
 
double ideal = 704.5 * 100/(height*height);
 
 
if (BMI >= 39.5) {
System.out.println("You are Severely Obese");
System.out.println("You should try to lose " + Math.round(ideal*100)/100);
} else if (BMI >= 29.5) {
System.out.println("You are Obese");
System.out.println("You should try to lose " + Math.round(ideal*100)/100);
} else if (BMI >= 24.9) {
System.out.println("You are Overweight");
System.out.println("You should try to lose " + Math.round(ideal*100)/100);
} else if (BMI <= 19.5) {
System.out.println("You are Underweight");
System.out.println("You should try to gain " + Math.round(ideal*100)/100);
} else {
System.out.println("You are Normal");
System.out.println("You are maintaining a healthy weight!");
}
 
}
}

PLEASE HELP

Mel

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[dmjpro]

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First,

Hello eveyone and I am new to Java.

I am trying to create a Java program that will calculate a person BMI based on user input of weight (in pounds) and heigh (in inches) and then display what the BMI is and give the a message that tells them where they fit plus I want to then be able to tell them how much weight they need to loss (or gain if underweight) to attain a normal BMI (25).

I have got it all to work except then last part (calculating how much they need to gain or loss to obtain a 25 BMI).

Here is the code I have so far:
import java.util.Scann er;
import java.lang.Math;


public class Hw05{

public static void main (String args[]) {
Scanner myScanner= new Scanner (System.in);
System.out.prin t( "Enter your weight (in pounds): " );

int weight= myScanner.nextI nt();
System.out.prin t( "Enter your height (in inches): " );

int height = myScanner.nextI nt();

double BMI = 704.5 * weight/(height*height) ;

System.out.prin tln("Your Body Max Index = " + Math.round(BMI* 100)/100);


double ideal = 704.5 * 100/(height*height) ;


if (BMI >= 39.5) {
System.out.prin tln("You are Severely Obese");
System.out.prin tln("You should try to lose " + Math.round(idea l*100)/100);
} else if (BMI >= 29.5) {
System.out.prin tln("You are Obese");
System.out.prin tln("You should try to lose " + Math.round(idea l*100)/100);
} else if (BMI >= 24.9) {
System.out.prin tln("You are Overweight");
System.out.prin tln("You should try to lose " + Math.round(idea l*100)/100);
} else if (BMI <= 19.5) {
System.out.prin tln("You are Underweight");
System.out.prin tln("You should try to gain " + Math.round(idea l*100)/100);
} else {
System.out.prin tln("You are Normal");
System.out.prin tln("You are maintaining a healthy weight!");
}

}
}



PLEASE HELP

Mel

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Good try !
You should try to use Code tags first to make your thread more readable :-)
Look ..... !
I think you are using right formula to get BMI....
BMI = 704.5 * weight/(height*height) ;
Now weight = (BMI*height*hei ght)/704.5
Now calculate required BMI.
req_BMI = (25~current_BMI )
So for that BMI calculate the weight (to be gained or lost).

Debasis Jana.