Java 为什么边界不能在这个GUI上工作
为什么panelFirst上的边界不起作用？它只在顶部显示所有内容，而不按照我设置的顺序显示边界？单选按钮应显示在另一个按钮下方，下一个按钮应显示在最右侧，但它不工作Java 为什么边界不能在这个GUI上工作,java,swing,layout,jpanel,Java,Swing,Layout,Jpanel,为什么panelFirst上的边界不起作用？它只在顶部显示所有内容，而不按照我设置的顺序显示边界？单选按钮应显示在另一个按钮下方，下一个按钮应显示在最右侧，但它不工作 public MyWizard() { panelContainer.setLayout(c1); panelFirst.add(btNext); panelSecond.add(btNextTwo); panelFirst.setBackground(Col
public MyWizard() {
panelContainer.setLayout(c1);
panelFirst.add(btNext);
panelSecond.add(btNextTwo);
panelFirst.setBackground(Color.BLUE);
panelSecond.setBackground(Color.RED);
panelThird.setBackground(Color.GREEN);
panelContainer.add(panelFirst, "1");
panelContainer.add(panelSecond,"2");
panelContainer.add(panelThird,"3");
c1.show(panelContainer, "1");
btNext.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
c1.show(panelContainer,"2");
}
});
btNextTwo.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
c1.show(panelContainer,"3");
}
});
RadioButtons();
Button();
frame.add(panelContainer);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.pack();
frame.setSize(600,360);
frame.setVisible(true);
}
public void RadioButtons() {
btLdap = new JRadioButton ("Ldap");
btLdap.setBounds(60,85,100,20);
panelFirst.add(btLdap);
btKerbegos = new JRadioButton ("Kerbegos");
btKerbegos.setBounds(60,115,100,20);
panelFirst.add(btKerbegos);
btSpnego =new JRadioButton("Spnego");
btSpnego.setBounds(60,145,100,20);
panelFirst.add(btSpnego);
btSaml2 = new JRadioButton("Saml2");
btSaml2.setBounds(60,175,100,20);
panelFirst.add(btSaml2);
}
public void Button() {
btNext.setBounds(400,260,100,20);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new MyWizard();
}
});
}
}
假设
panelFirstJPanelFlowLayoutsetBoundssetLocationsetSizeLayoutManager查看并假设
panelFirstJPanelFlowLayoutsetBoundssetLocationsetSizeLayoutManager查看和如果您的单选按钮应该位于彼此下方，则为它们创建一个面板，并将面板的布局设置为
BoxLayoutJPanel p = new JPanel();
p.setLayout(new BoxLayout(p,BoxLayout.Y_AXIS));
p.add(...);
//then add p to the fram's container or to some other container
如果您的单选按钮应位于彼此下方，则为它们创建一个面板，并将面板的布局设置为
BoxLayoutJPanel p = new JPanel();
p.setLayout(new BoxLayout(p,BoxLayout.Y_AXIS));
p.add(...);
//then add p to the fram's container or to some other container
因为您使用的是
LayoutManagerLayoutManagerFlowLayoutsetBoundssetLayout（null）LayoutManagerLayoutManagerFlowLayoutsetBoundssetLayout（null）