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  1. import java.awt.Color;
  2. import java.awt.FlowLayout;
  3. import java.awt.Graphics;
  4. import java.awt.Graphics2D;
  5. import java.awt.Image;
  6. import java.awt.Window;
  7. import java.awt.event.ActionEvent;
  8. import java.awt.event.ActionListener;
  9. import java.awt.image.BufferedImage;
  10. import java.io.File;
  11. import java.io.IOException;
  12. import javax.imageio.ImageIO;
  13. import javax.swing.JButton;
  14. import javax.swing.JFileChooser;
  15. import javax.swing.JFrame;
  16. import javax.swing.JLabel;
  17. import javax.swing.JPanel;
  18. import javax.swing.JTextField;
  19. import javax.swing.SwingUtilities;
  20. import javax.swing.filechooser.FileNameExtensionFilter;
  21.  
  22. class T extends JPanel implements ActionListener {
  23.     /**
  24.      * 
  25.      */
  26.     private static final long serialVersionUID = -2900955352094956729L;
  27.     int x = 0;
  28.     int flag = 0;
  29.     BufferedImage b;
  30.     Image z;
  31.     JButton j, a, cl;
  32.     JTextField ht, wdth;
  33.  
  34.     T() {
  35.         j = new JButton("Hi");
  36.         a = new JButton("Resizze");
  37.         a.addActionListener(this);
  38.         add(a);
  39.         j.addActionListener(this);
  40.         add(j);
  41.         setBackground(Color.WHITE);
  42.  
  43.     }
  44.  
  45.     class tobi implements ActionListener {// for close button of second window
  46.         public void actionPerformed(ActionEvent asd) {
  47.             // if(x==1)
  48.             {
  49.                 int gadda = 100, w = 100;
  50.                 gadda = Integer.parseInt(ht.getText());
  51.                 w = Integer.parseInt(wdth.getText());
  52.                 z = z.getScaledInstance(gadda, w, Image.SCALE_SMOOTH);
  53.                 setBackground(Color.BLACK);
  54.                 j.repaint();
  55.                 JButton ttr = (JButton) asd.getSource();
  56.                 Window qwe = SwingUtilities.windowForComponent(ttr);
  57.                 qwe.setVisible(false);
  58.             }
  59.         }
  60.  
  61.     }
  62.  
  63.     public void meth()// method to create second window
  64.     {
  65.         JFrame win = new JFrame();
  66.         win.setTitle("resizze!!");
  67.         win.setLayout(new FlowLayout());
  68.         JLabel height = new JLabel("Height:");
  69.         ht = new JTextField(20);
  70.  
  71.         JLabel width = new JLabel("Width:");
  72.         wdth = new JTextField(20);
  73.         JButton cl = new JButton("close");
  74.  
  75.         cl.addActionListener(new tobi());
  76.         win.add(height);
  77.         win.add(ht);
  78.         win.add(width);
  79.         win.add(wdth);
  80.         win.add(cl);
  81.         win.pack();
  82.         win.setVisible(true);
  83.     }
  84.  
  85.     public void paintComponent(Graphics g) {
  86.  
  87.         Graphics2D gt = (Graphics2D) g;
  88.         super.paintComponent(g);
  89.         if (x == 1)
  90.             g.drawImage(z, 0, 0, null);
  91.     }
  92.  
  93.     public void actionPerformed(ActionEvent e) {
  94.         if (e.getSource() == j) {
  95.             JFileChooser q = new JFileChooser();
  96.             // q.setFileFilter(new
  97.             // FileNameExtensionFilter("Image Files",ImageIO.getReaderFileSuffixes()));
  98.             q.addChoosableFileFilter(new FileNameExtensionFilter("Image Files",
  99.                     "jpg", "jpeg", "png"));
  100.             int option = q.showOpenDialog(null);
  101.             if (option == JFileChooser.APPROVE_OPTION) {
  102.                 File f = q.getSelectedFile();
  103.                 try {
  104.                     b = ImageIO.read(f);
  105.                     z = b.getScaledInstance(100, 100, Image.SCALE_SMOOTH);
  106.                 } catch (IOException ae) {
  107.                 }
  108.             }
  109.             x = 1;
  110.             repaint();
  111.         }
  112.  
  113.         else if (e.getSource() == a) {
  114.             meth();
  115.         }
  116.  
  117.     }
  118.  
  119.     public static void main(String args[]) {
  120.         SwingUtilities.invokeLater(new Runnable(){
  121. 	public void run(){
  122. 	JFrame j = new JFrame();
  123.         j.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  124.         j.setSize(500, 500);
  125.         j.add(new T());
  126.         j.setVisible(true);
  127. 	j.revalidate();
  128. 	j.repaint();
  129.  
  130. }
  131. });
  132.     }
  133. }
Success #stdin #stdout #stderr 0.16s 322688KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
stderr 
Exception in thread "AWT-EventQueue-0" 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:207)
	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 T$1.run(Main.java:122)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
https://ideone.com/9vii2E
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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