자바 스윙, 그걸로 보여줄 수있는 텍스트 필드를 얻을 수 없다

Question

나는 퀴즈 _7에 대한 텍스트 필드를 만들려고 노력하고 있지만, 그것은 remaning 여섯처럼 보이지 않는, 나는 360 , 텍스트 필드 없음. 340을 변경했지만 텍스트 필드의 절반 만 볼 수 있습니다.

import java.awt.Container; 

import javax.swing.*; 

public class QuizEntry { 

    JPanel textPanel,panelForTextFields; 
    JLabel Entry_for_Quizes, quiz1, quiz2, quiz3, quiz4, quiz5, quiz6; 
    JTextField quiz_1, quiz_2, quiz_3, quiz_4, quiz_5, quiz_6; 
    JTextField quiz_7; 
    private JLabel quiz7; 

    public JPanel createContentPane() {  
     // We create a bottom JPanel to place everything on. 
     JPanel totalGUI1 = new JPanel(); 
     totalGUI1.setLayout(null);   
     Entry_for_Quizes = new JLabel("Quiz Entry "); 
     Entry_for_Quizes.setLocation(0, 0); 
     Entry_for_Quizes.setSize(400, 400); 
     Entry_for_Quizes.setHorizontalAlignment(4); 
     totalGUI1.add(Entry_for_Quizes);    
     // Creation of a Panel to contain the JLabels 
       textPanel = new JPanel(); 
       textPanel.setLayout(null); 
       textPanel.setLocation(10, 35); 
       textPanel.setSize(100, 600); 
       totalGUI1.add(textPanel); 

       // Username Label 
       quiz1 = new JLabel("Quiz 1"); 
       quiz1.setLocation(-20, 0); 
       quiz1.setSize(70, 40); 
       quiz1.setHorizontalAlignment(4); 
       textPanel.add(quiz1); 

       // Login Label 
       quiz2 = new JLabel("Quiz 2"); 
       quiz2.setLocation(-20, 60); 
       quiz2.setSize(70, 40); 
       quiz2.setHorizontalAlignment(4); 
       textPanel.add(quiz2); 

       // Username Label 
       quiz3 = new JLabel("Quiz 3"); 
       quiz3.setLocation(-20, 120); 
       quiz3.setSize(70, 40); 
       quiz3.setHorizontalAlignment(4); 
       textPanel.add(quiz3); 

       // Login Label 
       quiz4 = new JLabel("Quiz 4"); 
       quiz4.setLocation(-20, 180); 
       quiz4.setSize(70, 40); 
       quiz4.setHorizontalAlignment(4); 
       textPanel.add(quiz4); 

       // Username Label 
       quiz5 = new JLabel("Quiz 5"); 
       quiz5.setLocation(-20, 240); 
       quiz5.setSize(70, 40); 
       quiz5.setHorizontalAlignment(4); 
       textPanel.add(quiz5); 

       // L 
       quiz6 = new JLabel("Quiz 6"); 
       quiz6.setLocation(-20, 300); 
       quiz6.setSize(70, 40); 
       quiz6.setHorizontalAlignment(4); 
       textPanel.add(quiz6); 

       quiz7 = new JLabel("Quiz 7"); 
       quiz7.setLocation(-20, 350); 
       quiz7.setSize(70, 40); 
       quiz7.setHorizontalAlignment(4); 
       textPanel.add(quiz7); 

       ////////////////////////////////////////////////////////////// 
       panelForTextFields = new JPanel(); 
       panelForTextFields.setLayout(null); 
       panelForTextFields.setLocation(110, 40); 
       panelForTextFields.setSize(100, 350); 
       totalGUI1.add(panelForTextFields); 

       // quiz Textfield 
       quiz_1 = new JTextField(8); 
       quiz_1.setLocation(0, 0); 
       quiz_1.setSize(100, 30); 
       panelForTextFields.add(quiz_1); 

       quiz_2 = new JTextField(8); 
       quiz_2.setLocation(0, 60); 
       quiz_2.setSize(100, 30); 
       panelForTextFields.add(quiz_2); 

       quiz_3 = new JTextField(8); 
       quiz_3.setLocation(0, 120); 
       quiz_3.setSize(100, 30); 
       panelForTextFields.add(quiz_3); 

       quiz_4 = new JTextField(8); 
       quiz_4.setLocation(0, 180); 
       quiz_4.setSize(100, 30); 
       panelForTextFields.add(quiz_4); 

       quiz_5 = new JTextField(8); 
       quiz_5.setLocation(0, 240); 
       quiz_5.setSize(100, 30); 
       panelForTextFields.add(quiz_5); 

       quiz_6 = new JTextField(8); 
       quiz_6.setLocation(0, 300); 
       quiz_6.setSize(100, 30); 
       panelForTextFields.add(quiz_6); 

       quiz_7 = new JTextField(8); 
       quiz_7.setLocation(0, 340); 
       quiz_7.setSize(100, 30); 
       panelForTextFields.add(quiz_7); 
     return totalGUI1; 

      } 
       private static void createAndShowGUI() { 

     JFrame.setDefaultLookAndFeelDecorated(true); 
     JFrame frame = new JFrame("Quiz Entry");  
     QuizEntry demo = new QuizEntry(); 
     frame.setContentPane(demo.createContentPane());  
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.setSize(700, 700); 
     frame.setVisible(true); 
    } 

    public static void main(String[] args) { 
     // Schedule a job for the event-dispatching thread: 
     // creating and showing this application's GUI. 
     SwingUtilities.invokeLater(new Runnable() { 
      public void run() { 
       createAndShowGUI(); 
      } 
     }); 
    } 
} 

Answer 1

기본적으로 크기 변경 : panelForTextFields. 예를 들어 350에서 500까지.

panelForTextFields.setSize(100, 6*80); 

6이 JTextField의 카운트입니다 :

내가처럼 작성할 코드는 약간의 일반적인 확인하십시오. 우리는 더 이상 갈 경우

, 내가 좋아하는 JTextField의 목록을 만들 것입니다 :

List<JTextField> list = new ArrayList<JTextField>(); 
list.add(quiz_1); 
list.add(quiz_2); 
list.add(quiz_3); 
list.add(quiz_4); 
list.add(quiz_5); 
list.add(quiz_6); 

를 후에는 작성합니다

final int GAP = 40; 
panelForTextFields.setSize(100, 6*(quiz_1.getHeight() + GAP)); 

당신이 JTextfield의 사용할 수를 구성하는 데 같은 논리를 사용하기 때문에 지금 list처럼 :

quiz_1 = new JTextField(8);  
    panelForTextFields.add(quiz_1); 


    quiz_2 = new JTextField(8); 
    panelForTextFields.add(quiz_2); 

    quiz_3 = new JTextField(8); 
    panelForTextFields.add(quiz_3); 

    quiz_4 = new JTextField(8); 
    panelForTextFields.add(quiz_4); 

    quiz_5 = new JTextField(8); 
    panelForTextFields.add(quiz_5); 

    quiz_6 = new JTextField(8); 
    panelForTextFields.add(quiz_6); 

    quiz_7 = new JTextField(8); 
    panelForTextFields.add(quiz_7); 

    list.add(quiz_1); 
    list.add(quiz_2); 
    list.add(quiz_3); 
    list.add(quiz_4); 
    list.add(quiz_5); 
    list.add(quiz_6); 
    list.add(quiz_7); 

    for(int k = 0; k<list.size(); k++){   
     JTextField f = list.get(k);    
     f.setLocation(0, k*60); 
     f.setSize(100, 30);   
    }  

    final int GAP = 40; 
    panelForTextFields.setSize(100, 6*(quiz_1.getHeight() + GAP));