线程“JavaFX应用程序线程”java中出现异常。util。IllegalFormatConversionException:f!=JAVA整型
我正试图编写一个程序,根据用户输入的浏览次数和年份对模因进行评分。我希望让界面获取视图计数(一个整数)和年数(一个整数),并通过如下所示的线性方程计算meme评级。接口按照我的预期加载,所有构建和编译都很好。然而,当我试图计算某物的模因评级时,结果出现了以下错误消息:
Exception in thread "JavaFX Application Thread" java.util.IllegalFormatConversionException: f != java.lang.Integer
at java.util.Formatter$FormatSpecifier.failConversion(Formatter.java:4302)
at java.util.Formatter$FormatSpecifier.printFloat(Formatter.java:2806)
at java.util.Formatter$FormatSpecifier.print(Formatter.java:2753)
at java.util.Formatter.format(Formatter.java:2520)
at java.util.Formatter.format(Formatter.java:2455)
at java.lang.String.format(String.java:2940)
at fross_charles_personal_programming_exercise.Fross_Charles_Personal_Programming_Exercise.calculateMemeRating(Fross_Charles_Personal_Programming_Exercise.java:67)
at fross_charles_personal_programming_exercise.Fross_Charles_Personal_Programming_Exercise.lambda$start$0(Fross_Charles_Personal_Programming_Exercise.java:48)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Node.fireEvent(Node.java:8411)
at javafx.scene.control.Button.fire(Button.java:185)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:432)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:410)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$4(WinApplication.java:186)
at java.lang.Thread.run(Thread.java:748)
有人知道如何解决这个问题吗?也许有一个格式问题我没有看到,在这里?这是我的代码:
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.geometry.HPos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;
public class Fross_Charles_Personal_Programming_Exercise extends Application {
private TextField tfViewCount = new TextField();
private TextField tfYearsOld = new TextField();
private TextField tfMemeRating = new TextField();
private Button btCalculate = new Button("Calculate");
@Override // Override the start method in the Application class
public void start(Stage primaryStage) {
// Create UI
GridPane gridPane = new GridPane();
gridPane.setHgap(5);
gridPane.setVgap(5);
gridPane.add(new Label("View Count:"), 0, 0);
gridPane.add(tfViewCount, 1, 0);
gridPane.add(new Label("Years Old:"), 0, 1);
gridPane.add(tfYearsOld, 1, 1);
gridPane.add(new Label("Meme Rating:"), 0, 2);
gridPane.add(tfMemeRating, 1, 2);
gridPane.add(btCalculate, 1, 5);
// Set properties for UI
gridPane.setAlignment(Pos.CENTER);
tfViewCount.setAlignment(Pos.BOTTOM_RIGHT);
tfYearsOld.setAlignment(Pos.BOTTOM_RIGHT);
tfMemeRating.setAlignment(Pos.BOTTOM_RIGHT);
tfMemeRating.setEditable(false);
GridPane.setHalignment(btCalculate, HPos.RIGHT);
// Process events
btCalculate.setOnAction(e -> calculateMemeRating());
// Create a scene and place it in the stage
Scene scene = new Scene(gridPane, 400, 250);
primaryStage.setTitle("MemeRatingGenerator"); // Set title
primaryStage.setScene(scene); // Place the scene in the stage
primaryStage.show(); // Display the stage
}
private void calculateMemeRating() {
// Get values from text fields
int ViewCount =
Integer.parseInt(tfViewCount.getText());
int YearsOld = Integer.parseInt(tfYearsOld.getText());
// Create the meme rating object
MemeRating MemeRating = new MemeRating(ViewCount, YearsOld);
// Display meme rating
tfMemeRating.setText(String.format("$%.2f",
MemeRating.getMemeRating()));
}
public class MemeRating {
private int ViewCount;
private int YearsOld;
/** Default constructor**/
public MemeRating() {
this(5000000, 12);
}
/** Construct a Meme Rating with specified View Count, and Years Ago
*
*/
public MemeRating(int ViewCount, int YearsOld) {
this.ViewCount = ViewCount;
this.YearsOld = YearsOld;
}
/** Return ViewCount */
public int getViewCount() {
return ViewCount;
}
/** Set a new ViewCount */
public void setViewCount(int ViewCount) {
this.ViewCount = ViewCount;
}
/** Return Years Old */
public int getYearsOld() {
return YearsOld;
}
/** Set a new Year */
public void setYear(int YearsOld) {
this.YearsOld = YearsOld;
}
/** Find MemeRating **/
public int getMemeRating() {
float memeThreshold = -1 * (196019 / 3);
float memeConstant = 10 / ((5706288 / 12) - (196019 / 3));
float memeRatio = ViewCount / YearsOld;
int memeRating = (int) (memeConstant * memeRatio + memeThreshold);
return memeRating;
}
}
/**
* The main method is only needed for the IDE with limited
* JavaFX support. Not needed for running from the command line.
*/
public static void main(String[] args) {
launch(args);
}
}
# 1 楼答案
您必须添加类型转换
旧版本
新版本
或更改GetMemoring方法()