基于Java的闰年测试

以下为测试代码，实现测试输入是否合法及是否为闰年（四年一闰，百年不闰，四百年再闰）：

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, 550, 400);
	
	public static void main(String[] args) {
		Application.launch(args);
	}
	
	public void start(Stage stage){
		stage.setTitle("Leapyear Testing");
		
		Text textTitle = new Text();
		textTitle.setText("LEAPYEAR TEST");
		textTitle.setFont(Font.font ("BLACK", 57));
		AnchorPane.setTopAnchor(textTitle, 10.0);
		AnchorPane.setLeftAnchor(textTitle, 10.0);
		
		Text text = new Text();
		text.setText("Enter the year for testing:");
		text.setFont(Font.font ("BLACK", 20));
		AnchorPane.setTopAnchor(text, 90.0);
		AnchorPane.setLeftAnchor(text, 10.0);
		
		final TextField textField = new TextField ();
		textField.setPrefWidth(150);
		textField.getText();
		AnchorPane.setTopAnchor(textField, 90.0);
		AnchorPane.setLeftAnchor(textField, 330.0);
		
		final Label label1 = new Label("This area is use for show the result…");
		label1.setFont(Font.font ("BLACK", 16));
		AnchorPane.setTopAnchor(label1, 200.0);
		AnchorPane.setLeftAnchor(label1, 10.0);
		
		Button submit = new Button();
		submit.setText("  Submit  ");
		AnchorPane.setTopAnchor(submit, 130.0);
		AnchorPane.setLeftAnchor(submit, 330.0);
		
		Button clear = new Button();
		clear.setText("  Clear  ");
		AnchorPane.setTopAnchor(clear, 130.0);
		AnchorPane.setLeftAnchor(clear, 420.0);
		
		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");
			        }
			}
			        
			 });
			 
			clear.setOnAction(new EventHandler<ActionEvent>() {

			@Override
			    public void handle(ActionEvent e) {
			        textField.clear();
			        label1.setText("This area is use for show the result…");
			    }
			});
		
		root.getChildren().addAll(textTitle,text,textField,submit,clear,label1);
		stage.setResizable(false);
		stage.setScene(scene);
		stage.show();
	}
}

　　

 

代码运行测试截图如下：