blocks|key|54045|text|当您使用BoxLayout时，Box.createVerticalGlue()方法可以帮助您创建一些空白。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|54046|另一种方法是BorderFactory.createEmptyBorder(int+top,+int+left,+int+bottom,+int+right)。它可以帮助你在组件周围留出一些空白。|54047|感谢Andrew+Thompson的提醒。我最近几天修改了BoxLayout，我发现Box.createVerticalGlue()可以根据面板的大小添加一些空白，你不能明确设置白色space.But的像素值长度，Box.createVerticalStrut()可以做到这一点。下面是一个MCTaRE，展示了这两种方法的效果。|54048|​|54049|📷|atomic|54050|54051|import+java.awt.*;
import+java.awt.event.*;
import+javax.swing.*;
import+javax.swing.border.*;
import+javax.swing.event.*;

public+class+WhiteSpace+extends+JFrame{
++++static+WhiteSpace+whiteSpace;
++++DemoPanel+demoPanel;
++++boolean+withGlue;
++++JSpinner+spinner;

++++public+WhiteSpace(){
++++++++initialWindow();
++++++++demoPanel+=+new+DemoPanel();
++++++++ActionPanel+actionPanel+=+new+ActionPanel();

++++++++setLayout(new+BorderLayout());

++++++++getContentPane().add(actionPanel,BorderLayout.NORTH);
++++++++getContentPane().add(demoPanel,BorderLayout.CENTER);
++++++++++++setVisible(true);
++++}

++++public+void+initialWindow(){
++++++++setSize(220,+300);
++++++++setTitle("White+Space");
++++++++setResizable(false);
++++++++setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
++++++++setLocationRelativeTo(null);
++++++++//Show+the+window+in+the+middle+of+the+screen
++++}

++++/**
+++++*+@param+args
+++++*/
++++public+static+void+main(String[]+args)+{
++++++++Runnable+runnable+=+new+Runnable()+{
++++++++++++@Override
++++++++++++public+void+run()+{
++++++++++++++++whiteSpace+=+new+WhiteSpace();
++++++++++++}
++++++++};
++++++++SwingUtilities.invokeLater(runnable);
++++}

++++class+DemoPanel+extends+JPanel{
++++++++//Show+the+vertical+white+space+between+label1+and+label2
++++++++JLabel+label1;
++++++++JLabel+label2;
++++++++public+void+initialDemoPanel(){
++++++++++++setBorder(BorderFactory.createTitledBorder(getBorder(),+"DemoPanel",+TitledBorder.LEADING,+TitledBorder.TOP,+new+Font("Default",Font.PLAIN,10),+Color.gray));
++++++++++++setLayout(new+BoxLayout(this,+BoxLayout.Y_AXIS));

++++++++++++label1+=+new+JLabel("This+is+first+line");
++++++++++++label2+=+new+JLabel("This+is+second+line");
++++++++}

++++++++public+DemoPanel(){
++++++++++++initialDemoPanel();
++++++++++++add(label1);
++++++++++++if(withGlue){
++++++++++++++++add(Box.createVerticalGlue());
++++++++++++}
++++++++++++add(label2);
++++++++}

++++++++public+DemoPanel(int+strutValue){
++++++++++++initialDemoPanel();
++++++++++++add(label1);
++++++++++++add(Box.createVerticalStrut(strutValue));
++++++++++++add(label2);
++++++++}
++++}

++++class+ActionPanel+extends+JPanel{
++++++++public+ActionPanel(){
++++++++++++setBorder(BorderFactory.createTitledBorder(getBorder(),+"ActionPanel",+TitledBorder.LEADING,+TitledBorder.TOP,+new+Font("Default",Font.PLAIN,10),+Color.gray));

++++++++++++setLayout(new+BoxLayout(this,BoxLayout.X_AXIS));
++++++++++++JRadioButton+glueButton+=+new+JRadioButton("With+Glue");
++++++++++++glueButton.addActionListener(new+glueButtonListener());
++++++++++++add(glueButton);

++++++++++++add(Box.createHorizontalStrut(10));
++++++++++++//To+create+horizontal+white+space
++++++++++++JLabel+strutLabel+=+new+JLabel("Strut+Value");
++++++++++++add(strutLabel);
++++++++++++spinner+=+new+JSpinner(new+SpinnerNumberModel(0,0,50,1));
++++++++++++spinner.addChangeListener(new+spinnerListener());
++++++++++++add(spinner);
++++++++++++//public+SpinnerNumberModel(Number+value,Comparable+minimum,Comparable+maximum,Number+stepSize)
++++++++}
++++}

++++class+glueButtonListener+implements+ActionListener{
++++++++@Override
++++++++public+void+actionPerformed(ActionEvent+e)+{
++++++++++++spinner.setValue(new+Integer(0));
++++++++++++withGlue+=+(withGlue+==+true+?+false:true);
++++++++++++whiteSpace.getContentPane().remove(demoPanel);
++++++++++++demoPanel+=+new+DemoPanel();
++++++++++++whiteSpace.getContentPane().add(demoPanel,BorderLayout.CENTER);
++++++++++++whiteSpace.getContentPane().validate();
++++++++}
++++}

++++class+spinnerListener+implements+ChangeListener{

++++++++@Override
++++++++public+void+stateChanged(ChangeEvent+e)+{
++++++++++++int+strutValue+=+(Integer)+spinner.getValue();
++++++++++++whiteSpace.getContentPane().remove(demoPanel);
++++++++++++demoPanel+=+new+DemoPanel(strutValue);
++++++++++++whiteSpace.getContentPane().add(demoPanel,BorderLayout.CENTER);
++++++++++++whiteSpace.getContentPane().validate();
++++++++}
++++}
}|code-block|syntax|javascript|54052|也可以使用Box.createHorizontalGlue()和Box.createHorizontalStrut(int+height)。此外，Box.createRigidArea(Dimension+d)也有创建空白的能力。|54053|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/f147c43a9cc94be366be5bb8d0bf4e00.gif|imageAlt^0|4|9|F|O|0|6|21|0|16|O|2Z|P|0|0|0|1|0|0|0|0|5|Q|W|11|21|W|0^^$0|@$1|2|3|4|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1D|8|@$9|1E|A|1F|B|C]|$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|1I|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|1J|8|@]|D|@$9|1K|A|1L|1|1M]]|E|$]]|$1|O|3|K|5|6|7|1N|8|@]|D|@]|E|$]]|$1|P|3|Q|5|R|7|1O|8|@]|D|@]|E|$S|T]]|$1|U|3|V|5|6|7|1P|8|@$9|1Q|A|1R|B|C]|$9|1S|A|1T|B|C]|$9|1U|A|1V|B|C]]|D|@]|E|$]]|$1|W|3|-4|5|6|7|1W|8|@]|D|@]|E|$]]]|X|$Y|$5|Z|10|11|E|$12|13|14|-4]]]]

When you use <code>BoxLayout</code>, <code>Box.createVerticalGlue()</code> method can help you to make some white space.

Another method is <code>BorderFactory.createEmptyBorder(int top, int left, int bottom, int right)</code>. It can help you to make some white space around component.

Thanks for Andrew Thompson's remind.I've revised BoxLayout in recent days and I find that <code>Box.createVerticalGlue()</code> can add some white space depend on the panel's size and you can not set the explicit pixel value of the length of white space.But <code>Box.createVerticalStrut()</code> can do that. Here is a MCTaRE and show the effect of those two methods.

<img src="https://i.stack.imgur.com/qOIZ5.gif" alt="enter image description here">

<pre><code>import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;

public class WhiteSpace extends JFrame{
 static WhiteSpace whiteSpace;
 DemoPanel demoPanel;
 boolean withGlue;
 JSpinner spinner;

 public WhiteSpace(){
 initialWindow();
 demoPanel = new DemoPanel();
 ActionPanel actionPanel = new ActionPanel();

 setLayout(new BorderLayout());

 getContentPane().add(actionPanel,BorderLayout.NORTH);
 getContentPane().add(demoPanel,BorderLayout.CENTER);
 setVisible(true);
 }

 public void initialWindow(){
 setSize(220, 300);
 setTitle("White Space");
 setResizable(false);
 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 setLocationRelativeTo(null);
 //Show the window in the middle of the screen
 }

 /**
 * @param args
 */
 public static void main(String[] args) {
 Runnable runnable = new Runnable() {
 @Override
 public void run() {
 whiteSpace = new WhiteSpace();
 }
 };
 SwingUtilities.invokeLater(runnable);
 }

 class DemoPanel extends JPanel{
 //Show the vertical white space between label1 and label2
 JLabel label1;
 JLabel label2;
 public void initialDemoPanel(){
 setBorder(BorderFactory.createTitledBorder(getBorder(), "DemoPanel", TitledBorder.LEADING, TitledBorder.TOP, new Font("Default",Font.PLAIN,10), Color.gray));
 setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));

 label1 = new JLabel("This is first line");
 label2 = new JLabel("This is second line");
 }

 public DemoPanel(){
 initialDemoPanel();
 add(label1);
 if(withGlue){
 add(Box.createVerticalGlue());
 }
 add(label2);
 }

 public DemoPanel(int strutValue){
 initialDemoPanel();
 add(label1);
 add(Box.createVerticalStrut(strutValue));
 add(label2);
 }
 }

 class ActionPanel extends JPanel{
 public ActionPanel(){
 setBorder(BorderFactory.createTitledBorder(getBorder(), "ActionPanel", TitledBorder.LEADING, TitledBorder.TOP, new Font("Default",Font.PLAIN,10), Color.gray));

 setLayout(new BoxLayout(this,BoxLayout.X_AXIS));
 JRadioButton glueButton = new JRadioButton("With Glue");
 glueButton.addActionListener(new glueButtonListener());
 add(glueButton);

 add(Box.createHorizontalStrut(10));
 //To create horizontal white space
 JLabel strutLabel = new JLabel("Strut Value");
 add(strutLabel);
 spinner = new JSpinner(new SpinnerNumberModel(0,0,50,1));
 spinner.addChangeListener(new spinnerListener());
 add(spinner);
 //public SpinnerNumberModel(Number value,Comparable minimum,Comparable maximum,Number stepSize)
 }
 }

 class glueButtonListener implements ActionListener{
 @Override
 public void actionPerformed(ActionEvent e) {
 spinner.setValue(new Integer(0));
 withGlue = (withGlue == true ? false:true);
 whiteSpace.getContentPane().remove(demoPanel);
 demoPanel = new DemoPanel();
 whiteSpace.getContentPane().add(demoPanel,BorderLayout.CENTER);
 whiteSpace.getContentPane().validate();
 }
 }

 class spinnerListener implements ChangeListener{

 @Override
 public void stateChanged(ChangeEvent e) {
 int strutValue = (Integer) spinner.getValue();
 whiteSpace.getContentPane().remove(demoPanel);
 demoPanel = new DemoPanel(strutValue);
 whiteSpace.getContentPane().add(demoPanel,BorderLayout.CENTER);
 whiteSpace.getContentPane().validate();
 }
 }
}
</code></pre>

<code>Box.createHorizontalGlue()</code> and <code>Box.createHorizontalStrut(int height)</code> can be used too. Besides, <code>Box.createRigidArea(Dimension d)</code> has the ability too create white space too.

blocks|key|54113|text|MigLayout有多种方式来创造空间。(在此布局中，空间称为间隙。)可以在具有布局约束的最高级别创建间隙，可以在行和列之间创建间隙，并且还可以在具有元件约束的单个零部件之间设置间隙。容器的边界周围也有特定的间隙，称为insets，它有自己的特定关键字要设置。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|54114|下面的示例创建了所有这些类型的间隙：|54115|package+com.zetcode;

import+java.awt.EventQueue;
import+javax.swing.BorderFactory;
import+javax.swing.JButton;
import+javax.swing.JFrame;
import+javax.swing.JLabel;
import+javax.swing.JPanel;
import+javax.swing.JTextField;
import+net.miginfocom.swing.MigLayout;


public+class+MigLayoutGaps2+extends+JFrame+{

++++public+MigLayoutGaps2()+{

++++++++initUI();

++++++++setTitle("Gaps");
++++++++setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
++++++++setLocationRelativeTo(null);
++++}

++++private+void+initUI()+{

++++++++JPanel+base+=+new+JPanel(new+MigLayout("flowy,+ins+30,+gap+15"));
++++++++setContentPane(base);

++++++++JPanel+pnl1+=+new+JPanel();
++++++++pnl1.setBorder(
++++++++++++++++BorderFactory.createTitledBorder("Grid+gaps")
++++++++);

++++++++pnl1.setLayout(new+MigLayout("gap+5+5,+ins+10,+wrap+3"));

++++++++pnl1.add(new+JButton("1"));
++++++++pnl1.add(new+JButton("2"));
++++++++pnl1.add(new+JButton("3"));
++++++++pnl1.add(new+JButton("4"));
++++++++pnl1.add(new+JButton("5"));
++++++++pnl1.add(new+JButton("6"));

++++++++JPanel+pnl2+=+new+JPanel();
++++++++pnl2.setBorder(
++++++++++++++++BorderFactory.createTitledBorder("Column+gaps")
++++++++);

++++++++pnl2.setLayout(new+MigLayout("wrap+3",+"[]10[]"));

++++++++JLabel+lbl1+=+new+JLabel();
++++++++lbl1.setBorder(
++++++++++++BorderFactory.createEtchedBorder()
++++++++);

++++++++JLabel+lbl2+=+new+JLabel();
++++++++lbl2.setBorder(
++++++++++++BorderFactory.createEtchedBorder()
++++++++);

++++++++JLabel+lbl3+=+new+JLabel();
++++++++lbl3.setBorder(
++++++++++++BorderFactory.createEtchedBorder()
++++++++);++++++++

++++++++pnl2.add(lbl1,+"w+40,+h+110");
++++++++pnl2.add(lbl2,+"w+40,+h+110");
++++++++pnl2.add(lbl3,+"w+40,+h+110");

++++++++JPanel+pnl3+=+new+JPanel();
++++++++pnl3.setBorder(
++++++++++++++++BorderFactory.createTitledBorder("Row+gaps")
++++++++);

++++++++pnl3.setLayout(new+MigLayout("wrap",+"",+"[]15[]"));

++++++++JLabel+lbl4+=+new+JLabel();
++++++++lbl4.setBorder(
++++++++++++BorderFactory.createEtchedBorder()
++++++++);

++++++++JLabel+lbl5+=+new+JLabel();
++++++++lbl5.setBorder(
++++++++++++BorderFactory.createEtchedBorder()
++++++++);

++++++++JLabel+lbl6+=+new+JLabel();
++++++++lbl6.setBorder(
++++++++++++BorderFactory.createEtchedBorder()
++++++++);++++++++

++++++++pnl3.add(lbl4,+"w+150,+h+20");
++++++++pnl3.add(lbl5,+"w+150,+h+20");
++++++++pnl3.add(lbl6,+"w+150,+h+20");++++++++

++++++++JPanel+pnl4+=+new+JPanel();
++++++++pnl4.setBorder(
++++++++++++++++BorderFactory.createTitledBorder("Component+gaps")
++++++++);

++++++++pnl4.setLayout(new+MigLayout());

++++++++pnl4.add(new+JLabel("Name:"),+"gapright+5");
++++++++pnl4.add(new+JTextField(10),+"gapbottom+20,+gaptop+20");

++++++++base.add(pnl1);
++++++++base.add(pnl2);
++++++++base.add(pnl3);
++++++++base.add(pnl4);

++++++++pack();
++++}

++++public+static+void+main(String[]+args)+{

++++++++EventQueue.invokeLater(new+Runnable()+{
++++++++++++@Override
++++++++++++public+void+run()+{
++++++++++++++++MigLayoutGaps2+ex+=+new+MigLayoutGaps2();
++++++++++++++++ex.setVisible(true);
++++++++++++}
++++++++});
++++}
}|code-block|syntax|javascript|54116|我们在布局中有四个面板。每个面板都有一个MigLayout管理器。|54117|JPanel+base+=+new+JPanel(new+MigLayout("flowy,+ins+30,+gap+15"));|54118|这一行创建了容器插图和面板之间的垂直间隙。|54119|pnl1.setLayout(new+MigLayout("gap+5+5,+ins+10,+wrap+3"));|54120|在这里，我们为整个网格结构应用间隙，并设置容器间隙。|54121|pnl2.setLayout(new+MigLayout("wrap+3",+"[]10[]"));|54122|这条线在列之间创建间隙。|54123|pnl3.setLayout(new+MigLayout("wrap",+"",+"[]15[]"));|54124|行间距是用以下代码定义的。|54125|pnl4.add(new+JLabel("Name:"),+"gapright+5");
pnl4.add(new+JTextField(10),+"gapbottom+20,+gaptop+20");|54126|最后，有可能在各个组件之间创建间隙。|54127|​|54128|📷|atomic|54129|54130|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/85c7ce8e98128c7def0dd58b2f0dbea0.png|imageAlt^0|0|9|0|0|0|K|9|0|0|0|0|0|0|0|0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|1N|8|@$9|1O|A|1P|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1Q|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1R|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1S|8|@$9|1T|A|1U|B|C]]|D|@]|E|$]]|$1|O|3|P|5|J|7|1V|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1W|8|@]|D|@]|E|$]]|$1|S|3|T|5|J|7|1X|8|@]|D|@]|E|$K|L]]|$1|U|3|V|5|6|7|1Y|8|@]|D|@]|E|$]]|$1|W|3|X|5|J|7|1Z|8|@]|D|@]|E|$K|L]]|$1|Y|3|Z|5|6|7|20|8|@]|D|@]|E|$]]|$1|10|3|11|5|J|7|21|8|@]|D|@]|E|$K|L]]|$1|12|3|13|5|6|7|22|8|@]|D|@]|E|$]]|$1|14|3|15|5|J|7|23|8|@]|D|@]|E|$K|L]]|$1|16|3|17|5|6|7|24|8|@]|D|@]|E|$]]|$1|18|3|19|5|6|7|25|8|@]|D|@]|E|$]]|$1|1A|3|1B|5|1C|7|26|8|@]|D|@$9|27|A|28|1|29]]|E|$]]|$1|1D|3|19|5|6|7|2A|8|@]|D|@]|E|$]]|$1|1E|3|-4|5|6|7|2B|8|@]|D|@]|E|$]]]|1F|$1G|$5|1H|1I|1J|E|$1K|1L|1M|-4]]]]

<code>MigLayout</code> has multiple ways of creating space. (A space is called a gap in this layout.)
Gaps can be created at the highest level with layout constraints, it is possible to
create gaps between rows and column and gaps can be also set between individual 
components with component constraints. There are also specific gaps around the borders
of a container called insets which have their own specific keyword to be set.

The following example creates all these kinds of gaps:

<pre><code>package com.zetcode;

import java.awt.EventQueue;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import net.miginfocom.swing.MigLayout;


public class MigLayoutGaps2 extends JFrame {

 public MigLayoutGaps2() {

 initUI();

 setTitle("Gaps");
 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 setLocationRelativeTo(null);
 }

 private void initUI() {

 JPanel base = new JPanel(new MigLayout("flowy, ins 30, gap 15"));
 setContentPane(base);

 JPanel pnl1 = new JPanel();
 pnl1.setBorder(
 BorderFactory.createTitledBorder("Grid gaps")
 );

 pnl1.setLayout(new MigLayout("gap 5 5, ins 10, wrap 3"));

 pnl1.add(new JButton("1"));
 pnl1.add(new JButton("2"));
 pnl1.add(new JButton("3"));
 pnl1.add(new JButton("4"));
 pnl1.add(new JButton("5"));
 pnl1.add(new JButton("6"));

 JPanel pnl2 = new JPanel();
 pnl2.setBorder(
 BorderFactory.createTitledBorder("Column gaps")
 );

 pnl2.setLayout(new MigLayout("wrap 3", "[]10[]"));

 JLabel lbl1 = new JLabel();
 lbl1.setBorder(
 BorderFactory.createEtchedBorder()
 );

 JLabel lbl2 = new JLabel();
 lbl2.setBorder(
 BorderFactory.createEtchedBorder()
 );

 JLabel lbl3 = new JLabel();
 lbl3.setBorder(
 BorderFactory.createEtchedBorder()
 ); 

 pnl2.add(lbl1, "w 40, h 110");
 pnl2.add(lbl2, "w 40, h 110");
 pnl2.add(lbl3, "w 40, h 110");

 JPanel pnl3 = new JPanel();
 pnl3.setBorder(
 BorderFactory.createTitledBorder("Row gaps")
 );

 pnl3.setLayout(new MigLayout("wrap", "", "[]15[]"));

 JLabel lbl4 = new JLabel();
 lbl4.setBorder(
 BorderFactory.createEtchedBorder()
 );

 JLabel lbl5 = new JLabel();
 lbl5.setBorder(
 BorderFactory.createEtchedBorder()
 );

 JLabel lbl6 = new JLabel();
 lbl6.setBorder(
 BorderFactory.createEtchedBorder()
 ); 

 pnl3.add(lbl4, "w 150, h 20");
 pnl3.add(lbl5, "w 150, h 20");
 pnl3.add(lbl6, "w 150, h 20"); 

 JPanel pnl4 = new JPanel();
 pnl4.setBorder(
 BorderFactory.createTitledBorder("Component gaps")
 );

 pnl4.setLayout(new MigLayout());

 pnl4.add(new JLabel("Name:"), "gapright 5");
 pnl4.add(new JTextField(10), "gapbottom 20, gaptop 20");

 base.add(pnl1);
 base.add(pnl2);
 base.add(pnl3);
 base.add(pnl4);

 pack();
 }

 public static void main(String[] args) {

 EventQueue.invokeLater(new Runnable() {
 @Override
 public void run() {
 MigLayoutGaps2 ex = new MigLayoutGaps2();
 ex.setVisible(true);
 }
 });
 }
}
</code></pre>

We have four panels in the layout. Each of this panels has a <code>MigLayout</code> manager.

<pre><code>JPanel base = new JPanel(new MigLayout("flowy, ins 30, gap 15"));
</code></pre>

This line creates container insets and vertical gaps between panels.

<pre><code>pnl1.setLayout(new MigLayout("gap 5 5, ins 10, wrap 3"));
</code></pre>

Here we apply gaps for the whole grid structure and also set container gaps.

<pre><code>pnl2.setLayout(new MigLayout("wrap 3", "[]10[]"));
</code></pre>

This line creates gaps between columns.

<pre><code>pnl3.setLayout(new MigLayout("wrap", "", "[]15[]"));
</code></pre>

Row gaps are defined with this code.

<pre><code>pnl4.add(new JLabel("Name:"), "gapright 5");
pnl4.add(new JTextField(10), "gapbottom 20, gaptop 20");
</code></pre>

Finally, it is possible to create gaps between individual components.

<img src="https://i.stack.imgur.com/tfA8d.png" alt="Gaps">

blocks|key|270619|text|每当我遇到这个问题时，我都会使用JPanels。例如，在GridLayout中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|270620|JFrame+frame+=+new+JFrame;
frame.setLayout(new+GridLayout(2,+0));

//We+want+the+bottom+left+to+be+blank
frame.add(new+JLabel("Top+Left"));
frame.add(new+JLabel("Top+Right"));

//This+is+the+position+we+want+empty
frame.add(new+JPanel());

//Now+we+can+continue+with+the+rest+of+the+script|code-block|syntax|javascript|270621|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Whenever I have this issue, I just use JPanels. For example in a GridLayout:
<pre><code>JFrame frame = new JFrame;
frame.setLayout(new GridLayout(2, 0));

//We want the bottom left to be blank
frame.add(new JLabel(&quot;Top Left&quot;));
frame.add(new JLabel(&quot;Top Right&quot;));

//This is the position we want empty
frame.add(new JPanel());

//Now we can continue with the rest of the script
</code></pre>

A GUI with no white space appears 'crowded'. How can I provide white space without resorting to explicitly setting the position or size of components?­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­

Providing white space in a Swing GUI

容器

没有空白的GUI显示为“拥挤”。如何在不显式设置components?­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­...

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