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  1. /* package whatever; // don't place package name! */
  2. import java.awt.*;
  3.  
  4. import javax.swing.*;
  5. import javax.swing.event.*;
  6.  
  7. import java.util.Calendar;
  8. import java.util.Date;
  9.  
  10. import java.util.*;
  11. import java.lang.*;
  12. import java.io.*;
  13.  
  14. /* Name of the class has to be "Main" only if the class is public. */
  15. class Ideone extends JFrame
  16. {
  17. 	JLabel nameLabel, streetLabel, stateLabel, dateLabel,
  18. 		ageLabel, sexLabel, optionsLabel, aboutLabel;
  19. 	JTextField nameText, streetText;
  20. 	JComboBox stateList;
  21. 	JSpinner dateSpin;
  22. 	JSlider ageSlider;
  23. 	JRadioButton maleRadio, femaleRadio;
  24. 	ButtonGroup sexGroup;
  25. 	JCheckBox morningCheck, afterNCheck, eveningCheck;
  26. 	JTextArea aboutYou;
  27.  
  28.  
  29. 	public static void main(String[] args){
  30.  
  31. 		new Ideone();
  32.  
  33. 	}
  34.  
  35. 	public Ideone(){
  36.  
  37. 		// Create the frame, position it and handle closing it
  38.  
  39. 		this.setLocationRelativeTo(null);
  40. 		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  41. 		this.setTitle("Random Layout");
  42.  
  43. 		JPanel thePanel = new JPanel();
  44.  
  45. 		thePanel.setLayout(new GridBagLayout());
  46.  
  47. 		nameLabel = new JLabel("  Name:");
  48.  
  49. 		addComp(thePanel, nameLabel, 0, 0, 1, 1, GridBagConstraints.EAST, GridBagConstraints.NONE);
  50.  
  51. 		nameText = new JTextField(30);
  52.  
  53. 		addComp(thePanel, nameText, 1, 0, 2, 1, GridBagConstraints.WEST, GridBagConstraints.NONE);
  54.  
  55. 		streetLabel = new JLabel("  Street:");
  56.  
  57. 		addComp(thePanel, streetLabel, 0, 1, 1, 1, GridBagConstraints.EAST, GridBagConstraints.NONE);
  58.  
  59. 		streetText = new JTextField(30);
  60.  
  61. 		addComp(thePanel, streetText, 1, 1, 2, 1, GridBagConstraints.WEST, GridBagConstraints.NONE);
  62.  
  63. 		// Create a set of radio buttons and wrap them in a group
  64.  
  65. 		Box sexBox = Box.createVerticalBox();
  66. 		maleRadio = new JRadioButton("Male");
  67. 		femaleRadio = new JRadioButton("Female");
  68. 		ButtonGroup sexGroup = new ButtonGroup();
  69. 		sexGroup.add(maleRadio);
  70. 		sexGroup.add(femaleRadio);
  71. 		sexBox.add(maleRadio);
  72. 		sexBox.add(femaleRadio);
  73. 		sexBox.setBorder(BorderFactory.createTitledBorder("Sex"));
  74. 		addComp(thePanel, sexBox, 3, 0, 2, 1, GridBagConstraints.WEST, GridBagConstraints.NONE);
  75.  
  76. 		// Create a flow layout panel and space components 10px apart
  77.  
  78. 		JPanel statePanel = new JPanel();
  79. 		statePanel.setLayout(new FlowLayout(FlowLayout.LEFT, 10, 0));
  80.  
  81. 		stateLabel = new JLabel("State");
  82.  
  83. 		statePanel.add(stateLabel);
  84.  
  85. 		// Create a combo box that will hold the states
  86.  
  87. 		String[] states = {"PA", "NY", "OH", "WV", "NJ"};
  88.  
  89. 		stateList = new JComboBox(states);
  90.  
  91. 		statePanel.add(stateList);
  92.  
  93. 		dateLabel = new JLabel("Appointment Date");
  94.  
  95. 		statePanel.add(dateLabel);
  96.  
  97. 		// Get todays date
  98.  
  99. 		Date todaysDate = new Date();
  100.  
  101. 		// Create a date spinner & set default to today, no minimum, or max
  102. 		// Increment the days on button presses
  103. 		// Can also increment YEAR, MONTH, or DAY_OF_MONTH
  104.  
  105. 		dateSpin = new JSpinner(new SpinnerDateModel(todaysDate, null, null,
  106. 				   Calendar.DAY_OF_MONTH));
  107.  
  108. 		// DateEditor is an editor that handles displaying & editing the dates
  109.  
  110. 		JSpinner.DateEditor dateEditor = new JSpinner.DateEditor(dateSpin, "dd/MM/yy");
  111. 		dateSpin.setEditor(dateEditor);
  112.  
  113. 		statePanel.add(dateSpin);
  114.  
  115. 		ageLabel = new JLabel("Age: 50");
  116.  
  117. 		statePanel.add(ageLabel);
  118.  
  119. 		// Creates a slider with a min value of 1 thru 100
  120. 		// and an initial value of 1
  121.  
  122. 		ageSlider = new JSlider(1, 99, 50);
  123.  
  124. 		// Create an instance of ListenForEvents to handle events
  125.  
  126. 		ListenForSlider lForSlider = new ListenForSlider();
  127.  
  128. 		// Tell Java that you want to be alerted when an event
  129. 		// occurs on the slider
  130.  
  131. 		ageSlider.addChangeListener(lForSlider);
  132.  
  133. 		statePanel.add(ageSlider);
  134.  
  135. 		addComp(thePanel, statePanel, 1, 2, 5, 1, GridBagConstraints.EAST, GridBagConstraints.NONE);
  136.  
  137. 		// Create check boxs and assign them to a group
  138.  
  139. 		JCheckBox morningCheck, afterNCheck, eveningCheck;
  140.  
  141. 		Box optionBox = Box.createVerticalBox();
  142. 		morningCheck = new JCheckBox("Morning");
  143. 		afterNCheck = new JCheckBox("Afternoon");
  144. 		eveningCheck = new JCheckBox("Evening");
  145.  
  146. 		optionBox.add(morningCheck);
  147. 		optionBox.add(afterNCheck);
  148. 		optionBox.add(eveningCheck);
  149. 		optionBox.setBorder(BorderFactory.createTitledBorder("Time of Day"));
  150. 		addComp(thePanel, optionBox, 1, 3, 2, 1, GridBagConstraints.NORTHWEST, GridBagConstraints.NONE);
  151.  
  152. 		// Create a text area that is 6 columns high and 40 long
  153.  
  154. 		aboutYou = new JTextArea(6, 40);
  155.  
  156. 		// Set the default text for the text area
  157.  
  158. 		aboutYou.setText("Tell us something about you");
  159.  
  160. 		// If text doesn't fit on a line, jump to the next
  161.  
  162. 		aboutYou.setLineWrap(true);
  163.  
  164. 		// Makes sure that words stay intact if a line wrap occurs
  165.  
  166. 		aboutYou.setWrapStyleWord(true);
  167.  
  168. 		// Adds scroll bars to the text area ----------
  169.  
  170. 		JScrollPane scrollbar1 = new JScrollPane(aboutYou, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
  171.  
  172. 		// Other options: VERTICAL_SCROLLBAR_ALWAYS, VERTICAL_SCROLLBAR_NEVER
  173.  
  174. 		addComp(thePanel, scrollbar1, 2, 3, 3, 1, GridBagConstraints.EAST, GridBagConstraints.NONE);
  175.  
  176. 		this.add(thePanel);
  177.  
  178. 		// Adjusts the size of the frame to best work for the components
  179.  
  180. 		this.pack();
  181.  
  182. 		this.setVisible(true);
  183.  
  184. 		// Define if the user can resize the frame (true by default)
  185. 		this.setResizable(false);
  186.  
  187. 	}
  188.  
  189. 	// Sets the rules for a component destined for a GridBagLayout
  190. 	// and then adds it 
  191.  
  192. 	private void addComp(JPanel thePanel, JComponent comp, int xPos, int yPos, int compWidth, int compHeight, int place, int stretch){
  193.  
  194. 		GridBagConstraints gridConstraints = new GridBagConstraints();
  195.  
  196. 		gridConstraints.gridx = xPos;
  197. 		gridConstraints.gridy = yPos;
  198. 		gridConstraints.gridwidth = compWidth;
  199. 		gridConstraints.gridheight = compHeight;
  200. 		gridConstraints.weightx = 100;
  201. 		gridConstraints.weighty = 100;
  202. 		gridConstraints.insets = new Insets(5,5,5,5);
  203. 		gridConstraints.anchor = place;
  204. 		gridConstraints.fill = stretch;
  205.  
  206. 		thePanel.add(comp, gridConstraints);
  207.  
  208. 	}
  209.  
  210. 	// Implements ActionListener so it can react to events on components
  211.  
  212. 	private class ListenForSlider implements ChangeListener{
  213.  
  214. 	// Called when the spinner is changed
  215. 		public void stateChanged(ChangeEvent e) {
  216.  
  217. 			// Check if the source of the event was the button
  218.  
  219. 			if(e.getSource() == ageSlider){
  220.  
  221. 				// Change the value for the label next to the spinner
  222.  
  223. 				ageLabel.setText("Age: " + ageSlider.getValue() );
  224.  
  225.  
  226. 			}
  227.  
  228. 		}
  229.  
  230.  
  231.  
  232. 	}
  233. }
Runtime error #stdin #stdout #stderr 0.21s 2846720KB
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Exception in thread "main" java.awt.HeadlessException: 
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
	at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:204)
	at java.awt.Window.<init>(Window.java:536)
	at java.awt.Frame.<init>(Frame.java:420)
	at java.awt.Frame.<init>(Frame.java:385)
	at javax.swing.JFrame.<init>(JFrame.java:189)
	at Ideone.<init>(Main.java:35)
	at Ideone.main(Main.java:31)
https://ideone.com/ApL0Xy
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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