JLabel/JPanel定位问题。（GridBagLayout）

对我的JLabel组件的定位存在小问题。JLabel/JPanel定位问题。（GridBagLayout）

代码：

public class delete { 


    public static void main(String[] args){ 
     GridBagConstraints gbc = new GridBagConstraints(); 

     //Adding the JPanels. Panel for instructions 
     JPanel panel = new JPanel(); 
     panel.setLayout(new GridBagLayout()); 

     //JLabel for the Instructions. 
     JLabel label = new JLabel("<html> Instructions: Type in the grades you’ve received, along with the weights they’ll have in the determination of your overall average. <br> After you press ‘Calculate’, the results will show your average so far. <br> Every grade you enter must be a non-negative number, and every percentage/weight you enter must be a positive number :)</html>"); 
     gbc.gridwidth = 2; 
     gbc.fill = GridBagConstraints.HORIZONTAL; 
     gbc.anchor = GridBagConstraints.PAGE_START; 
     gbc.weighty = 1; 
     panel.add(label, gbc); 


     //JLabel1 for Assingment/Grade/Weight(Percent) 
     JLabel label1 = new JLabel("<html><pre>Assingment\t\t\t\t\tWeight\t\t\t\t\tPercentage</pre></html>"); 
     gbc.gridx = 0; 
     gbc.gridy = 0; 
     panel.add(label1, gbc); 


     //New frame set 
     JFrame frame = new JFrame("Grade Calculator"); 
     frame.setVisible(true); 
     frame.setSize(750,500); 
     frame.setDefaultCloseOperation(EXIT_ON_CLOSE); 
     frame.add(panel); 



    } 


}

现在现在这个位置JLabel（label）在这是我想要的框架的顶部。问题是JLabel（label1）我想label1略低于标签。

如果我设置gbc.gridy = 0,label1显示在标签的顶部使两个单独的碰撞在一起。

当我设置gbc.gridy = 1时，label1一直走到框架的底部。

现在我想要label1只是略低于标签，但我不能使用漂浮与gridy。我怎样才能解决这个问题？

来源

2015-07-12 bob9123

gbc.weighty = 1;正在为组件提供所有组件布置后留下的所有剩余空间。相反，提供label这一限制的，你应该给label1只

当你不提供旁边的最后一个组件，因为没有其他成分被添加，label一个gridx/gridy到组件，GridBagLayout地方组件放置在顶部，但是您还要提供0的gridx/gridy到label1，它放置在相同的位置。

相反，放置在label和0x0在label10x1

JLabel label = new JLabel("<html> Instructions: Type in the grades you’ve received, along with the weights they’ll have in the determination of your overall average. <br> After you press ‘Calculate’, the results will show your average so far. <br> Every grade you enter must be a non-negative number, and every percentage/weight you enter must be a positive number :)</html>"); 

gbc.gridwidth = 2; 
gbc.fill = GridBagConstraints.HORIZONTAL; 
gbc.gridy = 0; 
panel.add(label, gbc); 

//JLabel1 for Assingment/Grade/Weight(Percent) 
JLabel label1 = new JLabel("<html><pre>Assingment\t\t\t\t\tWeight\t\t\t\t\tPercentage</pre></html>"); 
gbc.gridx = 0; 
gbc.gridy = 1; 
gbc.anchor = GridBagConstraints.NORTH; 
gbc.weighty = 1; 
panel.add(label1, gbc);

您也可以影响该组件将调整到内它是通过使用anchor物业小区的位置。

GridBagLayout

看一看How to Use GridBagLayout的一些细节

不知道“正是”你在做什么，我可能会建议也有看How to Use Tables

来源

2015-07-13 00:03:41 MadProgrammer

谢谢这非常重要。我一直在问这里一个问题之前总是使用Java教程，但直到有人在这里解释之后，我才能完全理解它。再次感谢。 – bob9123

你好，还有一件事我遇到了问题。你能帮我解答吗？ – bob9123

@ bob9123我通常会提供指向其他教程，文档或支持文档的链接，因为您不应该把我的话当做事情;）。如果你有更多的问题，也许考虑问另一个问题，只需提供一个链接回到这个作为参考点的人谁可能还没有读过这个;） – MadProgrammer

//JLabel for the Instructions. 
JLabel label = new JLabel("<html> Instructions: Type in the grades you’ve received, along with the weights they’ll have in the determination of your overall average. <br> After you press ‘Calculate’, the results will show your average so far. <br> Every grade you enter must be a non-negative number, and every percentage/weight you enter must be a positive number :)</html>"); 
gbc.fill = GridBagConstraints.HORIZONTAL; 
gbc.weighty = 1; 
gbc.gridx = 0; 
gbc.gridy = 0; 
panel.add(label, gbc); 


//JLabel1 for Assingment/Grade/Weight(Percent) 
JLabel label1 = new JLabel("<html><pre>Assingment\t\t\t\t\tWeight\t\t\t\t\tPercentage</pre></html>"); 
gbc.gridx = 0; 
gbc.gridy = 1; 
panel.add(label1, gbc);

来源

2015-07-13 10:41:15

JLabel/JPanel定位问题。 （GridBagLayout）

回答

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JLabel/JPanel定位问题。（GridBagLayout）