I'm trying to execute this code. It's a program that just lets the user enter the sum of two numbers. The two numbers are randomly chosen and theres a get method in another class that retrieves them. I tried to assign that method to the questionField label, but i keep getting a error when i try to run and compile. Can someone help me out and tell me what im doing wrong?
public class Assignment5 extends Application {
// TODO: Instance Variables for View Components and Model
private MathGame math1;
private TextField answerField;
private Label questionField;
private Label answerRight;
private Label answerWrong;
// TODO: Private Event Handlers and Helper Methods
private void mathHandler(ActionEvent e) {
int n = Integer.parseInt(answerField.getText());
math1.verify();
}
/**
* This is where you create your components and the model and add event
* handlers.
*
* @param stage The main stage
* @throws Exception
*/
@Override
public void start(Stage stage) throws Exception {
Pane root = new Pane();
Scene scene = new Scene(root, 400, 225); // set the size here
stage.setTitle("Assignment5"); // set the window title here
stage.setScene(scene);
// TODO: Add your GUI-building code here
// 1. Create the model
math1 = new MathGame();
// 2. Create the GUI components
answerField = new TextField("");
Button input = new Button("OK");
questionField = new Label("");
answerRight = new Label("Test");
answerWrong = new Label("Test");
// 3. Add components to the root
root.getChildren().add(answerWrong);
root.getChildren().add(answerRight);
root.getChildren().add(questionField);
root.getChildren().add(answerField);
root.getChildren().add(input);
//root.getChildren().add(input);
// 4. Configure the components (colors, fonts, size, location)
questionField.setLayoutY(100);
questionField.setLayoutX(30);
answerField.setLayoutX(100);
answerField.setLayoutY(100);
answerField.setPrefWidth(40);
answerField.setPrefHeight(20);
input.setLayoutX(160);
input.setLayoutY(100);
answerRight.setLayoutY(140);
answerWrong.setLayoutY(165);
// 5. Add Event Handlers and do final setup
// 6. Show the stage
stage.show();
}
/**
* Make no changes here.
*
* @param args unused
*/
public static void main(String[] args) {
launch(args);
}
}
and this is the error message i get when i run it
Exception in Application constructor
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Unable to construct Application instance: class Assignment5.Assignment5
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:907)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$154(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$160(LauncherImpl.java:819)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
... 1 more
Caused by: java.lang.RuntimeException: Uncompilable source code - Erroneous tree type: Assignment5.MathGame
at Assignment5.Assignment5.<init>(Assignment5.java:18)
... 13 more
Exception running application Assignment5.Assignment5
C:\Users\owner\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 1 second)
