Can'；我看不到java框架中的所有文本

我有个无法解决的问题。我真的是个编程新手

主框架（Glavnookon）正常打开。单击主框架上的按钮后，新框架将打开。你看不到里面所有的文本或文本框。那些在屏幕宽度范围内的可以，但其他不能

我尝试了.pack（），但没有成功，然后我尝试了ScrollPane（），但也没有成功（可能是因为我不知道把它放在哪里：（）。。 总之，我的代码分为四个类。在这里我放了两个，我认为这很重要。如果我错了，我也可以放另外两个。所有变量都是英文的，我希望这不是一个太大的问题

所以…请帮忙。这是主框架的类。底部是第二个框架的定义

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

     public class GlavnoOkno extends JFrame implements ActionListener {
          private JLabel naslov;
      private JButton gumbVnesiEleganten;
      private JButton gumbKoncaj;
      private JPanel plosca;
      private JScrollPane zvitek = new JScrollPane();
      private JTextArea tekstnoOkno = new JTextArea();
      private Trgovina trgovina;

public void setTrgovina(Trgovina trgovina) {
    this.trgovina = trgovina;
}

public Trgovina getTrgovina() {
    return trgovina;
}

public JTextArea getTekstnoOkno() {
    return tekstnoOkno;
}

public GlavnoOkno(Trgovina trg) {
    setTrgovina(trg);

    Container cp = this.getContentPane();
    cp.setLayout(new BorderLayout());

    naslov = new JLabel("Prosim, da pritisnete ustrezen gumb ...");
    cp.add(naslov, BorderLayout.PAGE_END);

    plosca = new JPanel();
    cp.add(plosca, BorderLayout.PAGE_START);

    gumbVnesiEleganten = new JButton("Vnesi eleganten cevelj.");
    plosca.add(gumbVnesiEleganten);
    gumbVnesiEleganten.addActionListener(this);

    gumbKoncaj = new JButton("Koncaj");
    plosca.add(gumbKoncaj);
    gumbKoncaj.addActionListener(this);

    zvitek.setAutoscrolls(true);
    cp.add(zvitek, BorderLayout.CENTER);
    zvitek.getViewport().add(tekstnoOkno);

    setSize(300, 400);
    setTitle("Glavno okno programa");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

public void actionPerformed(ActionEvent e) {

    Object m = e.getSource();;

    if (m == gumbVnesiEleganten) {
        Eleganten novi = null;
        try {
            JFrame oknoVnesiEleganten = new VnesiEleganten(novi, this);
            oknoVnesiEleganten.setVisible(true);
            oknoVnesiEleganten.pack();
            trgovina.getCevlji1()[0] = novi;
        } catch (Exception e1) {
            getTekstnoOkno().append("Napaka - poskusite znova!\n");
        } 
    } 
    else if (m == gumbKoncaj) {
        System.exit(0);
    }
}

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

    public class VnesiEleganten extends JFrame implements ActionListener {

    private Eleganten nov;
private JLabel naslov;
private GlavnoOkno glavnoOkno;
private JButton gumbShraniEleganten;
private JTextField poljeCena;
private JTextField poljePopust;
private JTextField poljeMaterial;
private JTextField poljeBarva;
private JTextField poljeOtroski;
private JTextField poljeSpol;
private JTextField poljePeta;
private JPanel plosca;


public void setEleganten(Eleganten novi) {
    this.nov = novi;
}
public Eleganten getEleganten() {return nov;}


public VnesiEleganten(Eleganten novi, GlavnoOkno okno) {

setEleganten(novi);
glavnoOkno = okno;

Container cp = this.getContentPane();
cp.setLayout(new BorderLayout());

naslov = new JLabel("Prosim, da vnesete polja, shranite eleganten cevelj ter zaprete okno.");
cp.add(naslov, BorderLayout.PAGE_END);

plosca = new JPanel();
cp.add(plosca, BorderLayout.PAGE_START);

plosca.add(new JLabel("Cena = "));
poljeCena = new JTextField(10);
plosca.add(poljeCena);

plosca.add(new JLabel("Popust = "));
poljePopust = new JTextField(10);
plosca.add(poljePopust);

plosca.add(new JLabel("Material = "));
poljeMaterial = new JTextField(20);
plosca.add(poljeMaterial);

plosca.add(new JLabel("Barva = "));
poljeBarva = new JTextField(20);
plosca.add(poljeBarva);

plosca.add(new JLabel("Otroski (false/true) = "));
poljeOtroski = new JTextField(10);
plosca.add(poljeOtroski);

plosca.add(new JLabel("Moski/zenski = "));
poljeSpol = new JTextField(10);
plosca.add(poljeSpol);

plosca.add(new JLabel("Visina pete = "));
poljePeta = new JTextField(10);
plosca.add(poljePeta);

gumbShraniEleganten = new JButton("Shrani");
plosca.add(gumbShraniEleganten);
gumbShraniEleganten.addActionListener(this);

setTitle("Vnos novega elegantnega cevlja.");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

}

public void actionPerformed(ActionEvent e) {

    Object m = e.getSource();;
    Eleganten novi = null;;

    if (m == gumbShraniEleganten) {
        try {
            novi = new Eleganten();
            novi.setCena(Double.parseDouble(poljeCena.getText()));
            novi.setPopust(Integer.parseInt(poljePopust.getText()));
            novi.setMaterial(poljeMaterial.getText());
            novi.setBarva(poljeBarva.getText());
            novi.setOtroski(Boolean.parseBoolean(poljeOtroski.getText()));
            novi.setSpol(poljeSpol.getText());
            novi.setVisinaPete(Double.parseDouble(poljePeta.getText()));
            setEleganten(novi);
            glavnoOkno.getTekstnoOkno().append("" + novi + "\n");
            poljeCena.setText("");
            poljePopust.setText("");
            poljeMaterial.setText("");
            poljeBarva.setText("");
            poljeOtroski.setText("");
            poljeSpol.setText("");
            poljePeta.setText("");
        } catch (Exception e1) {
            glavnoOkno.getTekstnoOkno().append("Napaka - poskusite znova!\n");
        }
    }
}

}

这是第二帧的一个类

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

     public class GlavnoOkno extends JFrame implements ActionListener {
          private JLabel naslov;
      private JButton gumbVnesiEleganten;
      private JButton gumbKoncaj;
      private JPanel plosca;
      private JScrollPane zvitek = new JScrollPane();
      private JTextArea tekstnoOkno = new JTextArea();
      private Trgovina trgovina;

public void setTrgovina(Trgovina trgovina) {
    this.trgovina = trgovina;
}

public Trgovina getTrgovina() {
    return trgovina;
}

public JTextArea getTekstnoOkno() {
    return tekstnoOkno;
}

public GlavnoOkno(Trgovina trg) {
    setTrgovina(trg);

    Container cp = this.getContentPane();
    cp.setLayout(new BorderLayout());

    naslov = new JLabel("Prosim, da pritisnete ustrezen gumb ...");
    cp.add(naslov, BorderLayout.PAGE_END);

    plosca = new JPanel();
    cp.add(plosca, BorderLayout.PAGE_START);

    gumbVnesiEleganten = new JButton("Vnesi eleganten cevelj.");
    plosca.add(gumbVnesiEleganten);
    gumbVnesiEleganten.addActionListener(this);

    gumbKoncaj = new JButton("Koncaj");
    plosca.add(gumbKoncaj);
    gumbKoncaj.addActionListener(this);

    zvitek.setAutoscrolls(true);
    cp.add(zvitek, BorderLayout.CENTER);
    zvitek.getViewport().add(tekstnoOkno);

    setSize(300, 400);
    setTitle("Glavno okno programa");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

public void actionPerformed(ActionEvent e) {

    Object m = e.getSource();;

    if (m == gumbVnesiEleganten) {
        Eleganten novi = null;
        try {
            JFrame oknoVnesiEleganten = new VnesiEleganten(novi, this);
            oknoVnesiEleganten.setVisible(true);
            oknoVnesiEleganten.pack();
            trgovina.getCevlji1()[0] = novi;
        } catch (Exception e1) {
            getTekstnoOkno().append("Napaka - poskusite znova!\n");
        } 
    } 
    else if (m == gumbKoncaj) {
        System.exit(0);
    }
}

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

    public class VnesiEleganten extends JFrame implements ActionListener {

    private Eleganten nov;
private JLabel naslov;
private GlavnoOkno glavnoOkno;
private JButton gumbShraniEleganten;
private JTextField poljeCena;
private JTextField poljePopust;
private JTextField poljeMaterial;
private JTextField poljeBarva;
private JTextField poljeOtroski;
private JTextField poljeSpol;
private JTextField poljePeta;
private JPanel plosca;


public void setEleganten(Eleganten novi) {
    this.nov = novi;
}
public Eleganten getEleganten() {return nov;}


public VnesiEleganten(Eleganten novi, GlavnoOkno okno) {

setEleganten(novi);
glavnoOkno = okno;

Container cp = this.getContentPane();
cp.setLayout(new BorderLayout());

naslov = new JLabel("Prosim, da vnesete polja, shranite eleganten cevelj ter zaprete okno.");
cp.add(naslov, BorderLayout.PAGE_END);

plosca = new JPanel();
cp.add(plosca, BorderLayout.PAGE_START);

plosca.add(new JLabel("Cena = "));
poljeCena = new JTextField(10);
plosca.add(poljeCena);

plosca.add(new JLabel("Popust = "));
poljePopust = new JTextField(10);
plosca.add(poljePopust);

plosca.add(new JLabel("Material = "));
poljeMaterial = new JTextField(20);
plosca.add(poljeMaterial);

plosca.add(new JLabel("Barva = "));
poljeBarva = new JTextField(20);
plosca.add(poljeBarva);

plosca.add(new JLabel("Otroski (false/true) = "));
poljeOtroski = new JTextField(10);
plosca.add(poljeOtroski);

plosca.add(new JLabel("Moski/zenski = "));
poljeSpol = new JTextField(10);
plosca.add(poljeSpol);

plosca.add(new JLabel("Visina pete = "));
poljePeta = new JTextField(10);
plosca.add(poljePeta);

gumbShraniEleganten = new JButton("Shrani");
plosca.add(gumbShraniEleganten);
gumbShraniEleganten.addActionListener(this);

setTitle("Vnos novega elegantnega cevlja.");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

}

public void actionPerformed(ActionEvent e) {

    Object m = e.getSource();;
    Eleganten novi = null;;

    if (m == gumbShraniEleganten) {
        try {
            novi = new Eleganten();
            novi.setCena(Double.parseDouble(poljeCena.getText()));
            novi.setPopust(Integer.parseInt(poljePopust.getText()));
            novi.setMaterial(poljeMaterial.getText());
            novi.setBarva(poljeBarva.getText());
            novi.setOtroski(Boolean.parseBoolean(poljeOtroski.getText()));
            novi.setSpol(poljeSpol.getText());
            novi.setVisinaPete(Double.parseDouble(poljePeta.getText()));
            setEleganten(novi);
            glavnoOkno.getTekstnoOkno().append("" + novi + "\n");
            poljeCena.setText("");
            poljePopust.setText("");
            poljeMaterial.setText("");
            poljeBarva.setText("");
            poljeOtroski.setText("");
            poljeSpol.setText("");
            poljePeta.setText("");
        } catch (Exception e1) {
            glavnoOkno.getTekstnoOkno().append("Napaka - poskusite znova!\n");
        }
    }
}

---

}

旁注：非英语变量名使代码非常难以读取。请避免这种情况

---

我认为您应该使用JScrollPane。请尝试以下方法：

JPanel yourPanel = new JPanel();
// all kinds of code that adds elements to it
// now wrap the panel in a scroll pane
JScrollPane scrollPane = new JScrollPane(yourPanel);

// and use the scroll pane instead of your main component
Container cp = this.getContentPane();
cp.setLayout(new BorderLayout());
cp.add(scrollPane, BorderLayout.CENTER);

---

旁注：非英语变量名使代码非常难以阅读。避免这种情况

---

我认为您应该使用JScrollPane。请尝试以下方法：

JPanel yourPanel = new JPanel();
// all kinds of code that adds elements to it
// now wrap the panel in a scroll pane
JScrollPane scrollPane = new JScrollPane(yourPanel);

// and use the scroll pane instead of your main component
Container cp = this.getContentPane();
cp.setLayout(new BorderLayout());
cp.add(scrollPane, BorderLayout.CENTER);

---

为您的问题添加了Swing标记。应用程序应该只有一个JFrame。子窗口应该是一个JDialog，框架指定为父窗口。请参阅：为您的问题添加了Swing标记。应用程序应该只有一个JFrame。子窗口应该是一个JDialog，框架指定为父窗口。请参阅：它正在工作。谢谢关于非英语变量，我知道，但是对我来说，阅读和使用代码容易得多吗。非常感谢：）至于非英语变量，我知道，但是对我来说阅读和使用代码更容易吗。