1 import javafx.application.Application;
  2 import javafx.event.ActionEvent;
  3 import javafx.event.EventHandler;
  4 import javafx.scene.Scene;
  5 import javafx.scene.control.Button;
  6 import javafx.scene.control.TextField;
  7 import javafx.scene.layout.AnchorPane;
  8 import javafx.scene.layout.HBox;
  9 import javafx.scene.text.Text;
 10 import javafx.stage.Stage;
 11 
 12 public class Test extends Application{
 13     public static void main(String[] args) {
 14         Test.launch(args);
 15     } 
 16       
 17     public void start(Stage stage ){
 18         stage.setTitle("UserForm1");          
 19         AnchorPane root = new AnchorPane();
 20        
 21         //The first one box;
 22         HBox hbox1 = new HBox(8);
 23         Text t1 = new Text("Name One: ");
 24         final TextField tf1 = new TextField();
 25         Button btn1 = new Button("Enter");
 26         hbox1.getChildren().addAll(t1, tf1, btn1);
 27          
 28         btn1.setOnAction(new EventHandler<ActionEvent>(){
 29             @Override
 30             public void handle(ActionEvent actEvt) {
 31                 if(check(tf1.getText().toString()))
 32                     System.out.println("Name One is true");
 33                     else
 34                     System.out.println("Name One is false");
 35                 }
 36         });
 37         
 38         AnchorPane.setTopAnchor(hbox1, 30.0);
 39         AnchorPane.setLeftAnchor(hbox1, 30.0);
 40         root.getChildren().add(hbox1);
 41         
 42         //The second one 
 43         HBox hbox2 = new HBox(8);
 44         Text t2 = new Text("Name Two: ");
 45         final TextField tf2 = new TextField();
 46         Button btn2 = new Button("Enter");
 47         hbox2.getChildren().addAll(t2, tf2, btn2);
 48          
 49         btn2.setOnAction(new EventHandler<ActionEvent>(){
 50             @Override
 51             public void handle(ActionEvent actEvt) {
 52                 if(check(tf2.getText().toString()))
 53                     System.out.println("Name Two is true");
 54                     else
 55                     System.out.println("Name Two is false");
 56                 }
 57         });
 58         
 59         AnchorPane.setTopAnchor(hbox2, 90.0);
 60         AnchorPane.setLeftAnchor(hbox2, 30.0);
 61         root.getChildren().add(hbox2);
 62         
 63         //The third one 
 64         HBox hbox3 = new HBox(8);
 65         Text t3 = new Text("Name Three: ");
 66         final TextField tf3 = new TextField();
 67         Button btn3 = new Button("Enter");
 68         hbox3.getChildren().addAll(t3, tf3, btn3);
 69          
 70         btn3.setOnAction(new EventHandler<ActionEvent>(){
 71             @Override
 72             public void handle(ActionEvent actEvt) {
 73                 if(check(tf3.getText().toString()))
 74                     System.out.println("Name Three is true");
 75                     else
 76                     System.out.println("Name Three is false");
 77                 }
 78         });
 79         
 80         AnchorPane.setTopAnchor(hbox3, 150.0);
 81         AnchorPane.setLeftAnchor(hbox3, 30.0);
 82         root.getChildren().add(hbox3);
 83         
 84         stage.setScene(new Scene(root, 400, 200));
 85         stage.show(); 
 86     }
 87      
 88     public boolean check(String s){
 89         char array[] = new char[s.length()];
 90         array = s.toCharArray();
 91         if (s.length() < 1 || s.length() > 6)
 92             return false;          
 93         if (s.length() != 0){
 94             for (int i = 0; i < s.length(); i++){
 95                 if(!Character.isDigit(array[i]) && !Character.isAlphabetic(array[i]))
 96                     return false;
 97             }
 98         }
 99            return true;
100     }
101 }