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Feb 15th, 2016
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  1. import javax.swing.*;
  2. import java.awt.*;
  3. import java.awt.event.*;
  4.  
  5. import javax.swing.JFrame;
  6.  
  7. import class_program.NextPage;
  8.  
  9. class Login extends JFrame implements ActionListener
  10. {
  11. JButton SUBMIT;
  12. JPanel panel;
  13. JLabel label1,label2;
  14. final JTextField text1,text2;
  15. Login()
  16. {
  17. label1 = new JLabel();
  18. label1.setText("Username:");
  19. text1 = new JTextField(15);
  20.  
  21. label2 = new JLabel();
  22. label2.setText("Password:");
  23. text2 = new JPasswordField(15);
  24.  
  25. SUBMIT=new JButton("SUBMIT");
  26.  
  27. panel=new JPanel(new GridLayout(3,1));
  28. panel.add(label1);
  29. panel.add(text1);
  30. panel.add(label2);
  31. panel.add(text2);
  32. panel.add(SUBMIT);
  33. add(panel,BorderLayout.CENTER);
  34. SUBMIT.addActionListener(this);
  35. setTitle("LOGIN FORM");
  36. }
  37. public void actionPerformed(ActionEvent ae)
  38. {
  39. String value1=text1.getText();
  40. String value2=text2.getText();
  41. if (value1.equals("jomy") && value2.equals("jomy")) {
  42. NextPage page=new NextPage();
  43. page.setVisible(true);
  44. JLabel label = new JLabel("Welcome:"+value1);
  45. page.getContentPane().add(label);
  46. }
  47. else{
  48. System.out.println("enter the valid username and password");
  49. JOptionPane.showMessageDialog(this,"Incorrect login or password",
  50. "Error",JOptionPane.ERROR_MESSAGE);
  51. }
  52. }
  53. }
  54. class jframes
  55. {
  56. public static void main(String arg[])
  57. {
  58. try
  59. {
  60. Login frame=new Login();
  61. frame.setSize(300,100);
  62. frame.setVisible(true);
  63. }
  64. catch(Exception e)
  65. {JOptionPane.showMessageDialog(null, e.getMessage());}
  66. }
  67. }
  68.  
  69. package class_program;
  70.  
  71. import javax.swing.JFrame;
  72.  
  73. public class NextPage extends JFrame
  74. {
  75. public NextPage()
  76. {
  77. setDefaultCloseOperation(javax.swing.
  78. WindowConstants.DISPOSE_ON_CLOSE);
  79. setTitle("");
  80. setSize(400, 200);
  81. }
  82. }
  83.  
  84. public void actionPerformed(ActionEvent ae)
  85. {
  86. String value1=text1.getText();
  87. String value2=text2.getText();
  88. if (value1.equals("jomy") && value2.equals("jomy")) {
  89.  
  90. dispose(); // this will close current login box window
  91.  
  92. //this will open a nextpage window.
  93. NextPage page=new NextPage();
  94. page.setVisible(true);
  95. JLabel label = new JLabel("Welcome:"+value1);
  96. page.getContentPane().add(label);
  97. }
  98. else{
  99. System.out.println("enter the valid username and password");
  100. JOptionPane.showMessageDialog(this,"Incorrect login or password",
  101. "Error",JOptionPane.ERROR_MESSAGE);
  102. }
  103.  
  104. nextPage page=new NextPage();
  105. page.setVisible(true);
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