BorderLayout/GridBagLayout의 위치가 잘못됨 (Java)

Question

코드에 문제가 있습니다.

내가 시작할 때 두 패널이 겹쳐져 있는데 하나의 패널을 북쪽으로 선언하고 하나는 남쪽으로 선언했습니다.

EingabePanel이 맨 위에 있고 SchnittpunktPanel이 맨 아래에 있다고 가정합니다.

여기 코드가 있습니다. 어쩌면 누군가 나를 도울 수 있습니다. GUI에서 작업하는 것은 처음입니다.

패키지 P2_pruefung.Frame;

import java.awt.*; 
import javax.swing.*; 

import P2_pruefung.Frame.Funktionen.CustomMath; 
import P2_pruefung.Frame.Funktionen.MyActionListener; 
import P2_pruefung.Objekte.Ungleichung; 
import P2_pruefung.Objekte.UngleichungListe; 


@SuppressWarnings("serial") 
public class LinearFrame extends JFrame{ 

    LayoutManager design1 = new BorderLayout(); 
    LayoutManager design2 = new GridBagLayout(); 
    GridBagConstraints rules = new GridBagConstraints(); 
    public static JTextField tf_a = null; 
    public static JTextField tf_b = null; 
    public static JTextField tf_c = null; 
    public static JTextField tf_g = null; 
    public static JTextField tf_h = null; 

    public static JPanel eingabe = null; 
    public static JPanel schnittp = null; 
    public static JPanel grafik = null; 
    public static JPanel rechnen = null; 

    public static UngleichungListe unge = new UngleichungListe(); 
    public static double g = 1; 
    public static double h = 1; 

    public LinearFrame(){ 
     // Voreinstellung des Fensters 
     super("Lineare Optimierung"); 
     this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     this.setSize(1024,760); 
     this.setLocation(400,250); 

     JPanel oben = EingabePanel(); 
     this.add(oben, BorderLayout.NORTH); 
     JPanel schnittp = SchnittpunktePanel(); 
     this.add(schnittp, BorderLayout.SOUTH); 

    } 

    public JPanel EingabePanel() { 
     //Voreinstellungen für das Panel 
     eingabe = new JPanel(); 
     eingabe.setLayout(design2); 
     rules.insets = new Insets(5,5,5,5); 
     rules.fill = GridBagConstraints.HORIZONTAL; 



     //Inhalt des Panels 

     // 1.Label 
     JLabel label1 = new JLabel("Bitte geben sie füre eine Ungleichung \"ax + bx <= c\" jeweils a, b und c ein"); 
     rules.gridx = 1; 
     rules.gridy = 1; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label1, rules); 

     // Eingabe 


     JLabel label2 = new JLabel("a = "); 
     rules.gridx = 2; 
     rules.gridy = 2; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label2, rules); 



     JLabel label3 = new JLabel(" b = "); 
     rules.gridx = 3; 
     rules.gridy = 2; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label3, rules); 

     JLabel label4 = new JLabel(" c = "); 
     rules.gridx = 4; 
     rules.gridy = 2; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label4, rules); 

     tf_a = new JTextField(); 
     rules.gridx = 2; 
     rules.gridy = 3; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(tf_a, rules); 

     tf_b = new JTextField(); 
     rules.gridx = 3; 
     rules.gridy = 3; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(tf_b, rules); 

     tf_c = new JTextField(); 
     rules.gridx = 4; 
     rules.gridy = 3; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(tf_c, rules); 

     JButton hinzu = new JButton("hinzufügen"); 
     rules.gridx = 4; 
     rules.gridy = 4; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(hinzu, rules); 
     hinzu.addActionListener(MyActionListener.getInstance()); 

     JLabel label5 = new JLabel("Bitte geben sie für eine Zielfunktion \"f(x;y) = gx + hx\" jeweils g und h ein"); 
     rules.gridx = 1; 
     rules.gridy = 5; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label5, rules); 

     JLabel label6 = new JLabel("g = "); 
     rules.gridx = 2; 
     rules.gridy = 6; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label6, rules); 

     tf_g = new JTextField("1"); 
     rules.gridx = 2; 
     rules.gridy = 7; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(tf_g, rules); 

     JLabel label7 = new JLabel("h = "); 
     rules.gridx = 3; 
     rules.gridy = 6; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label7, rules); 

     tf_h = new JTextField("1"); 
     rules.gridx = 3; 
     rules.gridy = 7; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(tf_h, rules); 

     JButton akt = new JButton("Aktualisieren"); 
     rules.gridx = 4; 
     rules.gridy = 7; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(akt, rules); 
     akt.addActionListener(MyActionListener.getInstance()); 

     return eingabe; 
    } 

    public JPanel SchnittpunktePanel(){ 

     //Voreinstellung des Panels 
     schnittp = new JPanel(); 
     schnittp.setLayout(design2); 
     rules.insets = new Insets(5,5,5,5); 
     rules.fill = GridBagConstraints.HORIZONTAL; 

     JLabel label1 = new JLabel("Folgende Schnittpunkte des Lösungsploynoms sind bekannt: "); 
     rules.gridx = 1; 
     rules.gridy = 1; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label1, rules); 

     JLabel label2 = new JLabel(""); 
     rules.gridx = 2; 
     rules.gridy = 2; 
     rules.weightx = 1; 
     rules.weighty = 1; 
     eingabe.add(label2, rules); 

     int anz = unge.getSize(); 
     boolean test = false; 
     Ungleichung[] id = new Ungleichung[anz]; 
     String eingabe = ""; 

     for(int i = 0; i <= anz; i++){ 
      for (Ungleichung s: unge.UngeListe){ 
       if(s.getI() == i) { 
        id[i] = s; 
       } 
      }  
     } 

     for(int i = 0; i <= anz; i++){ 
      for(int j = i+1; j < anz; j++){ 
       double[] spunkt = CustomMath.getSchnittpunkt(id[i], id[j]); 
       if(spunkt == null) //nichts tun 
       for(Ungleichung s: unge.UngeListe){ 
        if(s.checkUngleichung(spunkt[0], spunkt[1])){ 
         test = true; 
        } 
        else{ 
         test = false; 
         break; 
        } 
       } 

       if(test){ 
        eingabe = eingabe + "(" + (Math.round(spunkt[0]*100)/100) + ";" + (Math.round(spunkt[1]*100)/100) + "), "; 
       } 
      } 
     } 




     return schnittp; 
    } 
} 

Answer 1

JFrame 자체가 아닌 JFrame.getContentPane()에 구성 요소를 추가해야합니다.

this.getContentPant().setLayout(new BorderLayout()); 
this.getContentPant().add(BorderLayout.NORTH, new EingabePanel()); 
this.getContentPant().add(BorderLayout.SOUTH, new SchnittpunktePanel()); 

Answer 2

자, 도와 줘서 고마워. 나는 그것을 스스로 발견했다. 문제는 코드의이 부분이었다

schnittp = new JPanel(); 
    schnittp.setLayout(design2); 
    rules.insets = new Insets(5,5,5,5); 
    rules.fill = GridBagConstraints.HORIZONTAL; 

    JLabel label1 = new JLabel("Folgende Schnittpunkte des Lösungsploynoms sind bekannt: "); 
    rules.gridx = 1; 
    rules.gridy = 1; 
    rules.weightx = 1; 
    rules.weighty = 1; 
    eingabe.add(label1, rules); 

내가 패널 "schnittp"에 레이블을 추가하지 못했지만, 패널에