Question

有关Java Swing添加Jtabbedpane的问题 急求大神解答！！

我是想把一个JtextField添加到一个Jpanel上，然后再把Jpanel添加到Jtabbedpane上,但是我怎么设置jtextfield在jpanel中的位置他都不变,球怎么改变其位置 急求！！！我的代码如下import java.nio.channels.SelectableChannel;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JTabbedPane;import javax.swing.JTextField;public class JTabbledPaneTest extends JFrame{ private JPanel jPanel; private JTextField field; private JTabbedPane jTabbedPane; private void init(){ setBounds(100, 100, 700, 400); jPanel = new JPanel(); field = new JTextField(); jTabbedPane = new JTabbedPane(); jPanel.add(field); field.setBounds(100,100,100, 100); jTabbedPane.addTab("test", jPanel); getContentPane().add(jTabbedPane); setVisible(true); } public static void main(String[] args) { JTabbledPaneTest paneTest = new JTabbledPaneTest(); paneTest.init(); } }运行结果如图所示急求

Answer 1

jPanel = new JPanel();
jPanel.setLayout(null);