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  1.    import java.awt.*;
  2. import java.awt.event.*;
  3. class MyLoginWindow extends Frame
  4. {
  5.     TextField name,pass;
  6.     Button b1,b2;
  7.     MyLoginWindow()
  8.     {
  9.         setLayout(new FlowLayout());
  10.         this.setLayout(null);
  11.         Label n=new Label("Name:",Label.CENTER);
  12.         Label p=new Label("password:",Label.CENTER);
  13.         name=new TextField(20);
  14.         pass=new TextField(20);
  15.         pass.setEchoChar('#');
  16.         b1=new Button("submit");
  17.         b2=new Button("cancel");
  18.         this.add(n);
  19.         this.add(name);
  20.         this.add(p);
  21.         this.add(pass);
  22.         this.add(b1);
  23.         this.add(b2);
  24.         n.setBounds(70,90,90,60);
  25.         p.setBounds(70,130,90,60);
  26.         name.setBounds(200,100,90,20);
  27.         pass.setBounds(200,140,90,20);
  28.         b1.setBounds(100,260,70,40);
  29.         b2.setBounds(180,260,70,40);
  30.  
  31.     }
  32.     public static void main(String args[])
  33.     {
  34.         MyLoginWindow ml=new MyLoginWindow();
  35.         ml.setVisible(true);
  36.         ml.setSize(400,400);
  37.         ml.setTitle("my login window");
  38.  
  39.     }
  40. }
  41.  
  42.  
  43.  
Runtime error #stdin #stdout #stderr 0.28s 41456KB
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Standard input is empty
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Standard output is empty
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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.desktop/java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:197)
	at java.desktop/java.awt.Window.<init>(Window.java:538)
	at java.desktop/java.awt.Frame.<init>(Frame.java:423)
	at java.desktop/java.awt.Frame.<init>(Frame.java:388)
	at MyLoginWindow.<init>(Main.java:8)
	at MyLoginWindow.main(Main.java:34)
https://ideone.com/eaTFI4
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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