Toggles Button and Additional Text

[Eliza Parker]

Hello there, I'm new to the website. I hope i could get some help with my java.
Here's what it looks like



I required to activate those toggles Metric button, by clicking it. Then the unit will convert into ft and lb instead m and kg. I'm not sure how to do it.
Also, i need to move the Pop up message dialog box outside into the same window, rather than separate window.
Any tips on how to do it ?
Thanks

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

public class BmiCalculator extends JFrame implements ActionListener
{
		JPanel myPanel = new JPanel();
		JLabel heightLabel = new JLabel("Height (m): ");
		JTextField heightField = new JTextField(10);

		JLabel weightLabel = new JLabel("Weight (kg): ");
		JTextField weightField = new JTextField(10);

		JLabel bmiLabel = new JLabel("Your BMI is");

		JButton calcButton = new JButton("Calculate BMI");
		JButton metButton = new JButton("Metric/Imperial");


	public BmiCalculator()
	{
		add(myPanel);
		myPanel.add(heightLabel);
		myPanel.add(heightField);
		myPanel.add(weightLabel);
		myPanel.add(weightField);
		myPanel.add(calcButton);
		myPanel.add(metButton);
		myPanel.add(bmiLabel);

		calcButton.addActionListener(this);
		metButton.addActionListener(this);

	}

	public void actionPerformed(ActionEvent e)
	{
		double weight = Double.parseDouble(weightField.getText());
		double height = Double.parseDouble(heightField.getText());
		double bmi = weight / (height * height);

		bmiLabel.setText("Your BMI is = " + bmi);
		if(bmi < 18.5)
		{
			JOptionPane.showMessageDialog(null, " You are underweight.");
		}
		if((bmi > 18.5) && (bmi < 25))
		{
			JOptionPane.showMessageDialog(null, " You are normal.");
		}
		if((bmi > 25) && (bmi < 30))
		{
			JOptionPane.showMessageDialog(null, " You are overweight.");
		}
		if(bmi > 30)
		{
			JOptionPane.showMessageDialog(null, " You are obese.");
		}

	}

	public static void main(String[] args)
	{
		JFrame myFrame = new BmiCalculator();
		myFrame.setTitle("BMI Calculator");
		myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		myFrame.setSize(480,250);
		myFrame.setVisible(true);

	}
}

[Ranganathan Kaliyur Mannar]

Hi Eliza,
Welcome to the Ranch!

I am unable to see the image. As for toggling, there is a separate JToggleButton available - I think that fits your scenario. You can read about them in the tutorial here.

As for the popup, you have passed 'null' to the first parameter of the showMessageDialog. This paramater indicates the 'owner' of the popup - in your case, you have to pass the instance of the your main frame for the popup to appear inside.

[Eliza Parker]

Ranganathan Kaliyur Mannar wrote:Hi Eliza,
Welcome to the Ranch!

I am unable to see the image. As for toggling, there is a separate JToggleButton available - I think that fits your scenario. You can read about them in the tutorial here.

As for the popup, you have passed 'null' to the first parameter of the showMessageDialog. This paramater indicates the 'owner' of the popup - in your case, you have to pass the instance of the your main frame for the popup to appear inside.

Thanks, here's i already update the picture. I'll try to give them a go on JToggleButton later.
Um, actually i dont need to move the pop up. I just required the following text to be appear inside the box. Not the pop up. I said it wrong way on previous post.