newdude

Hey guys,

I made a BMI calculatorand it works fine. Now I want it to give responses based on the bmi index that you get to an answer. Basically All I need is to figure out the right if then statment combination.

Here is my code so far


import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.DecimalFormat;

public class bmi2 extends JApplet
implements ActionListener
{
JTextField inputLbs, inputInches, displayBmi;

public void init()
{
JLabel labelLbs = new JLabel("Weight (lbs):", SwingConstants.RIGHT);
inputLbs = new JTextField(5);
JLabel labelInches = new JLabel("Height (inches):", SwingConstants.RIGHT);
inputInches = new JTextField(5);
JLabel labelBmi = new JLabel("BMI = ", SwingConstants.RIGHT);
displayBmi = new JTextField(5);
displayBmi.setEditable(false);
JButton go = new JButton("Compute");
go.addActionListener(this);

Container c = getContentPane();
c.setBackground(Color.white);
JPanel p = new JPanel();
p.setLayout(new GridLayout(3, 2, 5, 5));
p.add(labelLbs);
p.add(inputLbs);
p.add(labelInches);
p.add(inputInches);
p.add(labelBmi);
p.add(displayBmi);
c.add(p, BorderLayout.CENTER);
c.add(go, BorderLayout.SOUTH);
}

public void actionPerformed(ActionEvent e)
{
int lbs = Integer.parseInt(inputLbs.getText());
int inches = Integer.parseInt(inputInches.getText());
double bmi = calculateBmi(lbs, inches);
DecimalFormat df = new DecimalFormat("00.0");
displayBmi.setText(df.format(bmi));
}

private double calculateBmi(int lbs, int inches)
{
return (double) (lbs/2.2046226) / ((double)(inches*0.0254)*(double)(inches*0.0254));
}
}

Thanks alot


P.S.: for the BMI indexes it should be:
less than 18.5 = underweight
Normal weight = 18.5-24.9
Overweight = 25-29.9
Obesity = BMI of 30 or greater

xavier

well .. it should be like this :
You make some modifications to suit your needs ... and that should do it, if i understood what you'r asking

__________________
Don't take life too seriously, it's not permanent !

newdude

Thats what i was tying. and it compils fine but it simply wont display the message how should I go about this??


Thanks
Andrea

xavier

Well, you should have another JTextField, let's say displayIndexBmi
and instead of System.out.println() - you should use or "normal" or"Obesis" - u get the picture.

That's what I meant by saing -- "make some modifications to suit your needs"

__________________
Don't take life too seriously, it's not permanent !

tempest

Also, when you don't use >= and <= and instead < and > it's excluding the numbers given to it as a test. Ex. if 25, 29.9, 18.5, etc... any of those numbers were the BMI it would show "obesis".. it should really be this...

Donald Ferrone

I guess you would use the full duplex operators to create world-class synergy using an ERP pipeline over your BBQ bus.