java对象在窗口调整大小调整大小

Question

我必须调整窗口大小调整一些像JTable的元素。我一直在尝试这个代码，但它不能正常工作：

table.setLocation(0, 23); 
    Dimension siz = contentPane.getMaximumSize(); 
    table.setSize(siz.height, siz.width - 46); 

它调整我的表，但它使它无尽的，我不想要的。此外，我想连接滚动条到这张表，如果有可能 - 设置列宽在百分比

Answer 1

您的主要问题（与调整大小）有更多的依赖表单编辑器，然后任何与Swing或Java

查看Laying Out Components Within a Container了解更多详情。

你好像也并不被利用JScrollPane容纳在JTable。看一看How to Use Tables和How to Use Scroll Panes更多细节

import java.awt.BorderLayout; 
import java.awt.Dimension; 
import java.awt.EventQueue; 
import java.awt.FlowLayout; 
import java.awt.Graphics; 
import java.awt.Graphics2D; 
import java.awt.GridLayout; 
import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.UIManager; 
import javax.swing.UnsupportedLookAndFeelException; 
import javax.swing.table.DefaultTableModel; 

public class ResizeTest { 

    public static void main(String[] args) { 
     new ResizeTest(); 
    } 

    public ResizeTest() { 
     EventQueue.invokeLater(new Runnable() { 
      @Override 
      public void run() { 
       try { 
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); 
       } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { 
        ex.printStackTrace(); 
       } 

       JFrame frame = new JFrame("Testing"); 
       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
       frame.add(new TestPane()); 
       frame.pack(); 
       frame.setLocationRelativeTo(null); 
       frame.setVisible(true); 
      } 
     }); 
    } 

    public class TestPane extends JPanel { 

     private JTable table; 
     private JButton historyButton; 
     private JButton otherButton; 

     public TestPane() { 

      table = new JTable(new DefaultTableModel(10, 10)); 
      historyButton = new JButton("History"); 
      otherButton = new JButton("Other"); 

      setLayout(new BorderLayout()); 
      JPanel buttons = new JPanel(new FlowLayout(FlowLayout.LEFT)); 
      buttons.add(historyButton); 
      buttons.add(otherButton); 
      add(buttons, BorderLayout.NORTH); 

      add(new JScrollPane(table)); 

      JPanel footers = new JPanel(new GridLayout(1, 2)); 
      JLabel left = new JLabel("Left"); 
      left.setHorizontalAlignment(JLabel.LEFT); 
      JLabel right = new JLabel("Right"); 
      right.setHorizontalAlignment(JLabel.LEFT); 
      footers.add(left); 
      footers.add(right); 

      add(footers, BorderLayout.SOUTH); 
     } 

     @Override 
     public Dimension getPreferredSize() { 
      return new Dimension(200, 200); 
     } 

    } 

}