代碼（java）：

package softwareTest;

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.TextField;
import javafx.scene.layout.AnchorPane;
import javafx.scene.text.Text;
import javafx.stage.Stage;

public class Lueluelue extends Application{
?? ?public static void main(String[] args) {
?? ??? ?Application.launch(args);
?? ?}

?? ?public void start(final Stage stage) throws Exception {
?? ??? ?stage.setTitle("testing");
?? ??? ?final AnchorPane root = new AnchorPane();
?? ??? ?
?? ??? ?final TextField input0 = new TextField();
?? ??? ?final TextField input1 = new TextField();
?? ??? ?final TextField input2 = new TextField();
?? ??? ?final Button button = new Button("click");
?? ??? ?final Text text1 = new Text("請正確輸入");
?? ??? ?final Text text2 = new Text("正確");
?? ??? ?button.setOnAction(new EventHandler<ActionEvent>(){
?? ??? ??? ?public void handle(ActionEvent arg0){
?? ??? ??? ??? ?for(int j = 0 ; j <= 2 ; j ++){
?? ??? ??? ??? ??? ?String string0 = input0.getText();
?? ??? ??? ??? ??? ?char [] str0 = string0.toCharArray();
?? ??? ??? ??? ??? ?
?? ??? ??? ??? ??? ?if(j == 0){
?? ??? ??? ??? ??? ??? ?string0 = input0.getText();
?? ??? ??? ??? ??? ??? ?str0 = string0.toCharArray();
?? ??? ??? ??? ??? ?}
?? ??? ??? ??? ??? ?else if(j == 1){
?? ??? ??? ??? ??? ??? ?string0 = input1.getText();
?? ??? ??? ??? ??? ??? ?str0 = string0.toCharArray();
?? ??? ??? ??? ??? ?}
?? ??? ??? ??? ??? ?else{
?? ??? ??? ??? ??? ??? ?string0 = input2.getText();
?? ??? ??? ??? ??? ??? ?str0 = string0.toCharArray();
?? ??? ??? ??? ??? ?}
?? ??? ??? ??? ??? ?
?? ??? ??? ??? ??? ?if(str0.length>0 && str0.length<7){
?? ??? ??? ??? ??? ??? ?int i = 0;
?? ??? ??? ??? ??? ??? ?for(i = 0 ; i < str0.length ; i ++){
?? ??? ??? ??? ??? ??? ??? ?if((str0[i]>='0' && str0[i]<='9') ||
?? ??? ??? ??? ??? ??? ??? ??? (str0[i]>='a' && str0[i]<='z') ||
?? ??? ??? ??? ??? ??? ??? ??? (str0[i]>='A' && str0[i]<='Z')){
?? ??? ??? ??? ??? ??? ??? ??? ?continue;
?? ??? ??? ??? ??? ??? ??? ?}
?? ??? ??? ??? ??? ??? ??? ?else{
?? ??? ??? ??? ??? ??? ??? ??? ?AnchorPane.setTopAnchor(text1,(double) 140);
?? ??? ??? ??? ??? ??? ??? ??? ?root.getChildren().addAll(text1);
?? ??? ??? ??? ??? ??? ??? ??? ?stage.show();
?? ??? ??? ??? ??? ??? ??? ??? ?break;
?? ??? ??? ??? ??? ??? ??? ?}?? ??? ?
?? ??? ??? ??? ??? ??? ?}
?? ??? ??? ??? ??? ??? ?if(i == str0.length){
?? ??? ??? ??? ??? ??? ??? ?if(j == 2){
?? ??? ??? ??? ??? ??? ??? ??? ?AnchorPane.setTopAnchor(text2,(double) 140);
?? ??? ??? ??? ??? ??? ??? ??? ?root.getChildren().addAll(text2);
?? ??? ??? ??? ??? ??? ??? ??? ?stage.show();
?? ??? ??? ??? ??? ??? ??? ??? ?break;
?? ??? ??? ??? ??? ??? ??? ?}

　　　　　　　　　　else
?? ??? ??? ??? ??? ??? ??? ?　　break;
?? ??? ??? ??? ??? ??? ?}
?? ??? ??? ??? ??? ?}
?? ??? ??? ??? ??? ?else{
?? ??? ??? ??? ??? ??? ?AnchorPane.setTopAnchor(text1,(double) 140);
?? ??? ??? ??? ??? ??? ?root.getChildren().addAll(text1);
?? ??? ??? ??? ??? ??? ?stage.show();
?? ??? ??? ??? ??? ??? ?break;
?? ??? ??? ??? ??? ?}?? ?
?? ??? ??? ??? ?}
?? ??? ??? ?}
?? ??? ?});
?? ??? ?
?? ??? ?AnchorPane.setTopAnchor(input0,(double) 40);
?? ??? ?AnchorPane.setTopAnchor(input1,(double) 80);
?? ??? ?AnchorPane.setTopAnchor(input2,(double) 120);
?? ??? ?AnchorPane.setTopAnchor(button,(double) 170);
?? ??? ?
?? ??? ?root.getChildren().addAll(input0,input1,input2,button);
?? ??? ?stage.setScene(new Scene(root,200,200));
?? ??? ?stage.show();
?? ?}
}

?

測試截圖：

?

么么噠！

轉載于:https://www.cnblogs.com/cassiecassie/p/4376659.html

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