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68 lines (49 loc) · 1.62 KB
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package sample;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.geometry.Insets;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.*;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class Main extends Application {
Stage window;
Button button;
@Override
public void start(Stage primaryStage) throws Exception{
window = primaryStage;
window.setTitle("Tony Chen");
GridPane gridPane = new GridPane();
gridPane.setPadding(new Insets(10, 10, 10, 10));
gridPane.setVgap(8);
gridPane.setHgap(10);
//Form
TextField nameInput = new TextField();
button = new Button("Click me");
button.setOnAction(e -> isInt(nameInput, nameInput.getText()) );
//Layout
VBox layout = new VBox();
layout.setPadding(new Insets(20, 20, 20, 20));
layout.getChildren().addAll(nameInput, button);
Scene scene = new Scene(layout, 300, 250);
window.setScene(scene);
window.show();
}
public static void main(String[] args) {
launch(args);
}
private boolean isInt(TextField input, String message){
try{
int age = Integer.parseInt(input.getText());
System.out.println("User is " + age);
return true;
}catch(NumberFormatException e){
System.out.println("Error: " + message + " is not a number");
return false;
}
}
}