Wednesday, October 21, 2015

JavaFx Tutorial For Beginners 4 - How to Use Lambda Expressions to Handl...









import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class HelloWorld extends Application{
 public static void main(String[] args) {
      launch(args);
 }

 @Override
 public void start(Stage primaryStage) throws Exception {
  Button btn = new Button("Click me");
  Button exit = new Button("Exit");
  exit.setOnAction(e -> {
   System.out.println("exit this App");
   System.exit(0);
  });
  btn.setOnAction(new EventHandler<ActionEvent>() {
   
   @Override
   public void handle(ActionEvent event) {
    System.out.println("hello world");
    System.out.println("hello world");
    
   }
  });
  VBox root = new VBox();
  root.getChildren().addAll(btn, exit);
  Scene scene = new Scene(root,500,300); 
  primaryStage.setTitle("My title");
  primaryStage.setScene(scene);
  primaryStage.show();
  
 }
}
























JavaFX 8 Event Handling Examples

Using Lambda Expressions of Java 8 in Java FX

Lambda expressions don't work in Java 8

Implement event handler using Lambda Expression

Java programming with lambda expressions
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