Question

我试图通过使用setBounds（）方法在我的JFrame中心移动一个JTable对象，但不幸的是它并没有在中心移动。使用setbounds（）方法无法做到这一点。这是我的代码：

package table;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.*;
public class Table extends JFrame{
    JTable tabel;
Table()
{
   String[] columnNames = {"First Name","Last Name","Sport","# of Years","Vegetarian"};
    Object[][] data = {
    {"Kathy", "Smith",
     "Snowboarding", new Integer(5), new Boolean(false)},
    {"John", "Doe",
     "Rowing", new Integer(3), new Boolean(true)},
    {"Sue", "Black",
     "Knitting", new Integer(2), new Boolean(false)},
    {"Jane", "White",
     "Speed reading", new Integer(20), new Boolean(true)},
    {"Joe", "Brown",
     "Pool", new Integer(10), new Boolean(false)}
};
   tabel=new JTable(data,columnNames);
   tabel.setLayout(null);
   tabel.setBounds(100,900,700,400);
   tabel.setPreferredScrollableViewportSize(new Dimension(500,50));
   tabel.setFillsViewportHeight(true);
   JScrollPane pane=new JScrollPane(tabel);
  add(pane);
}
    public static void main(String[] args) {
        Table gui=new Table();
        gui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        gui.setBounds(300,100,700,500);
        gui.setVisible(true);
    }    
}

我做错了什么？

如何在jframe的中心移动jtable？

0 个答案: