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Himanshu Kulshreshtha
Elite Author
Asked: 2024-05-22T09:30:42+05:30 In:

Write a Java applet which accepts centimeters as input and displays its meters, millimeters equivalent, as per the choice of user.

Create a Java applet that allows the user to select whether to display the meters’ millimeter equivalent when the user enters centimeters.

CITL-001
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    1. Elite Author

      Here's a Java applet that accepts centimeters as input and displays its equivalent in meters or millimeters based on the user's choice:

      import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class LengthConverter extends Applet implements ActionListener {
    TextField cmInput;
    Button convertButton;
    Choice choice;
    Label resultLabel;

    public void init() {
        // Initialize components
        cmInput = new TextField(10);
        convertButton = new Button("Convert");
        convertButton.addActionListener(this);
        choice = new Choice();
        choice.add("Meters");
        choice.add("Millimeters");
        resultLabel = new Label();

        // Add components to the applet
        add(new Label("Enter length in centimeters: "));
        add(cmInput);
        add(choice);
        add(convertButton);
        add(resultLabel);
    }

    public void actionPerformed(ActionEvent ae) {
        // Convert centimeters to meters or millimeters based on user's choice
        double centimeters = Double.parseDouble(cmInput.getText());
        double result = 0;
        String choiceText = choice.getSelectedItem();

        if (choiceText.equals("Meters")) {
            result = centimeters / 100; // Convert to meters
            resultLabel.setText(centimeters + " centimeters = " + result + " meters");
        } else if (choiceText.equals("Millimeters")) {
            result = centimeters * 10; // Convert to millimeters
            resultLabel.setText(centimeters + " centimeters = " + result + " millimeters");
        }
    }
}

      To run this applet, you can compile it using the javac command and then embed it in an HTML file as follows:

      <!DOCTYPE html>
<html>
<head>
<title>Length Converter Applet</title>
</head>
<body>
<applet code="LengthConverter.class" width="300" height="200">
</applet>
</body>
</html>

      This applet provides a text field for entering the length in centimeters, a choice box for selecting the desired unit (meters or millimeters), and a button to trigger the conversion. After conversion, the result is displayed below the button.

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