How do I display a default value of an integer in a JavaFX TextField?

To display a default integer value in a JavaFX TextField, you can use the setText() method of the TextField class. Here's how you can do it:

1. Create a TextField:

- First, you need to create an instance of the TextField class.

2. Set the Default Integer Value:

- Use the setText() method to set the initial text of the TextField. Since setText() accepts a String, you'll need to convert your integer to a String using String.valueOf() or Integer.toString().

3. Example Code:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.TextField;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class DefaultTextFieldValue extends Application {
  @Override
  public void start(Stage primaryStage) {
    TextField textField = new TextField();
    int defaultValue = 123;
    textField.setText(String.valueOf(defaultValue)); // Or textField.setText(Integer.toString(defaultValue));

    StackPane root = new StackPane(textField);
    Scene scene = new Scene(root, 300, 200);

    primaryStage.setTitle("Default TextField Value");
    primaryStage.setScene(scene);
    primaryStage.show();
  }

  public static void main(String[] args) {
    launch(args);
  }
}

4. Explanation:

- The code creates a TextField instance.

- An integer variable defaultValue is declared and initialized with the value 123.

- The setText() method is used to set the initial text of the TextField to the string representation of the defaultValue.

- The TextField is then added to a StackPane, which is used as the root node for the scene.

- Finally, the scene is set on the stage, and the stage is shown.

By following these steps, you can easily display a default integer value in a JavaFX TextField. Remember to convert the integer to a String before setting it as the text of the TextField.

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