java - 调整 Jtable 的大小以填充 JFrame 并且仍然滚动

Question

我正在尝试调整选项卡 View 中的scrollPanel 中的两个JTable 的大小。我已成功将框架的大小设置为 12000、5000，但 Jtable/scrollPanel 无法正常工作。

我找到了一些代码来设置有效的表格列的大小，但它没有填充 Jframe，而是在表格/scrollPanel 的底部添加了一个滚动条

任何人都可以想出一种方法让表格填满框架并仍然可以滚动吗？

表文件是:

public class ViewInTablePET extends JPanel {
private String[][] rowData = new String[0][];
private String columnNames[] = {"Shop", "Type", "price", "dateAcquired", "notes"};
private DefaultTableModel tableMod = new DefaultTableModel(rowData, columnNames);
private JTable table = new JTable(tableMod);

public ViewInTablePET() {

    String bob;
    String[] dan;

    for (Integer i = 0; i < AppModel.getArrayListPet().size(); i++) { 
        bob = AppModel.getArrayListPet().get(i).toString();
        dan = AppModel.getStringAsArray(bob, "\t");
        tableMod.insertRow(i, new Object[]{dan[0], dan[1], dan[2], dan[3], dan[4]});
    }
    JScrollPane scrollPane = new JScrollPane(table);
    this.add(scrollPane, BorderLayout.CENTER);    
}
}

Fram 文件是:

public class ViewInTabbs extends JFrame {

JLabel Average = new JLabel("Click a table row to get the average price");

public ViewInTabbs() {

    JTabbedPane tabs =              new JTabbedPane();
    ViewInTablePetShope petShop =   new ViewInTablePetShope();
    ViewInTablePET pet =            new ViewInTablePET();

    tabs.add("Pet Shope", (JPanel) petShop);
    tabs.add("Pets in the shop", (JPanel) pet);
    this.setTitle("Tabb View of Data");
    this.add(tabs, BorderLayout.CENTER);
    this.setSize(12000, 5000);
    this.setVisible(true);
    this.add(Average, BorderLayout.SOUTH);
}
public void setAverage(String ave) {
    this.Average.setText(ave);
}
}

Answer 1

啊..第二读:罪魁祸首是ViewInTablePET的LayoutManager，它默认为FlowLayout。更改边框布局

 public ViewInTablePET() {
    super(new BorderLayout());
    // your code
    ...
 }