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  • Java实现的闰年测试程序

    import javafx.application.Application;
    import javafx.event.ActionEvent;
    import javafx.event.EventHandler;
    import javafx.scene.Scene;
    import javafx.scene.control.Button;
    import javafx.scene.control.Label;
    import javafx.scene.control.TextField;
    import javafx.scene.layout.AnchorPane;
    import javafx.scene.text.Font;
    import javafx.scene.text.Text;
    import javafx.stage.Stage;
    
    
    public class Sfw_test extends Application{
        AnchorPane root = new AnchorPane();
        Scene scene = new Scene(root, 400, 120);
        
        public static void main(String[] args) {
            Application.launch(args);
        }
        
        public void start(Stage stage){
            stage.setTitle("Leapyear Test");
            
            Text text = new Text();
            text.setText("Input the year:");
            text.setFont(Font.font ("", 15));
            AnchorPane.setTopAnchor(text, 20.0);
            AnchorPane.setLeftAnchor(text, 10.0);
            
            final TextField textField = new TextField ();
            textField.setPrefWidth(150);
            textField.getText();
            AnchorPane.setTopAnchor(textField, 20.0);
            AnchorPane.setLeftAnchor(textField, 130.0);
            
            final Label label1 = new Label(" ");
            label1.setFont(Font.font ("BLACK", 16));
            AnchorPane.setTopAnchor(label1, 60.0);
            AnchorPane.setLeftAnchor(label1, 10.0);
            
            Button submit = new Button();
            submit.setText("  Submit  ");
            AnchorPane.setTopAnchor(submit, 20.0);
            AnchorPane.setLeftAnchor(submit, 300.0);
            
            submit.setOnAction(new EventHandler<ActionEvent>() {
    
                @Override
                    public void handle(ActionEvent e) {
                        String year = textField.getText().toString();
                        boolean inputlegal = false;
                        int Isleapyear = 2;
                        for (int i=0; i<year.length(); i++) {
                            if (year.indexOf(year.charAt(i)) == -1) {
                                inputlegal = false;
                            }
                        }
                        
                            if (Double.valueOf(year)%4!=0) {
                                Isleapyear = 0;
                            }
                            else if(Double.valueOf(year)%100==0 && Double.valueOf(year)%400==0){
                                Isleapyear = 1;
                            }
                            else{
                                Isleapyear = 0;
                            }
                        
                        
                        if(Isleapyear == 0){
                            label1.setText(textField.getText() + " is not a leap year");
                        }
                        else if(Isleapyear == 1){
                            label1.setText(textField.getText() + " is a leap year");
                        }
                }
                        
                 });
            
            root.getChildren().addAll(textField,text,submit,label1);
            stage.setResizable(false);
            stage.setScene(scene);
            stage.show();
        }
    }

    程序测试截图如下:

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  • 原文地址:https://www.cnblogs.com/huo722/p/4401018.html
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