943,861 Members | Top Members by Rank

Software Development > Java > Big errors i got plz help me out illegal type of expression type,
Ad:
  • Java Discussion Thread
  • Marked Solved
  • Views: 736
  • Java RSS
Permalink
Jul 1st, 2009
0

Big errors i got plz help me out illegal type of expression type,

Expand Post »
java Syntax (Toggle Plain Text)
  1. import javax.swing.*;
  2. import java.awt.*;
  3. import java.awt.geom.*;
  4. import java.sql.*;
  5. public class panel extends JFrame implements ActionListener  {
  6.  
  7. 		ResultSet res;
  8. 	 Connection conn;
  9. 	 Statement stat;
  10.  
  11.  
  12. String lang;
  13. JFrame frame = new JFrame("Graphics Button");
  14. lang="abc";
  15. JButton b1;
  16. JLabel l1,l2,l3;
  17. JPanel p,p1,p2,p3,p4;
  18. p.setSize(100,100);
  19. p.setLayout(new GridLayout(3,0));
  20.  
  21. p1=new JPanel();
  22. p2=new JPanel();
  23. p3=new JPanel();
  24. p4=new JPanel();
  25. l1=new JLabel(lang);
  26. l2=new JLabel();
  27. l3=new JLabel();
  28. ImageIcon button=new ImageIcon("magnifier1.jpg");
  29. b1=new JButton();
  30. b1.setIcon(button);
  31. b1.setOpaque(false);
  32. b1.setFocusPainted(false);
  33. b1.setBorderPainted(false);
  34. b1.setContentAreaFilled(false);
  35. b1.setBorder(BorderFactory.createEmptyBorder(0,0,0,0));
  36. b1.setBorderPainted(false);
  37. b1.addActionListener(this);
  38. b1.setBackground(Color.green);
  39. //b2=new JButton("cancel");
  40. p1.setBackground(Color.black);
  41. p1.add(l1);
  42. p2.setBackground(Color.green);
  43. p3.setBackground(Color.red);
  44. p4.setBackground(Color.blue);
  45. p.add(p1);
  46. p.add(p2);
  47. p.add(p3);
  48. p4.add(b1);
  49. //p4.add(b2);
  50. frame.add(p,BorderLayout.CENTER);
  51. frame.add(p4,BorderLayout.SOUTH);
  52. frame.pack();
  53. frame.setVisible(true);
  54.  
  55. try
  56. {
  57. Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
  58. Connection con=DriverManager.getConnection("jdbc:odbc:guru","","");
  59. stat = conn.createStatement();
  60. 	res = stat.executeQuery("Select * from hotel");
  61. res.next();
  62.  
  63. //con.close();
  64. }
  65. catch(Exception e)
  66. {
  67. e.printStackTrace();
  68. }//end of try
  69.  
  70. public void actionPerformed(ActionEvent e)  {
  71. 	if(e.getSource() == b1)   {
  72. 	try  {
  73. 	res.next();
  74. 	}
  75. 	catch(Exception ee) {}//end of try
  76. 	showRecord(res);
  77. 	}//end if
  78. 	}//end action performed
  79. public void showRecord(ResultSet res)   {
  80. 	try  {
  81. 	l1.setText(res.getString(1));
  82. 	l2.setText(res.getString(2));
  83. 	}
  84. 	catch(Exception e)  {}//end try
  85.  
  86.         }//end of show record
  87. public static void main(String[] args) {
  88.  
  89.  panel p=new panel();
  90.  
  91. p.showRecord(res);
  92. }	
  93. }//end ma
/* errors:-
C:\>javac panel.java
panel.java:14: <identifier> expected
lang="abc";
^
panel.java:18: <identifier> expected
p.setSize(100,100);
^
panel.java:18: illegal start of type
p.setSize(100,100);
^
panel.java:19: <identifier> expected
p.setLayout(new GridLayout(3,0));
^
panel.java:19: illegal start of type
p.setLayout(new GridLayout(3,0));
^
panel.java:21: <identifier> expected
p1=new JPanel();
^
panel.java:22: <identifier> expected
p2=new JPanel();
^
panel.java:23: <identifier> expected
p3=new JPanel();
^
panel.java:24: <identifier> expected
p4=new JPanel();
^
panel.java:25: <identifier> expected
l1=new JLabel(lang);
^
panel.java:26: <identifier> expected
l2=new JLabel();
^
panel.java:27: <identifier> expected
l3=new JLabel();
^
panel.java:29: <identifier> expected
b1=new JButton();
^
panel.java:30: <identifier> expected
b1.setIcon(button);
^
panel.java:30: <identifier> expected
b1.setIcon(button);
^
panel.java:31: <identifier> expected
b1.setOpaque(false);
^
panel.java:31: illegal start of type
b1.setOpaque(false);
^
panel.java:32: <identifier> expected
b1.setFocusPainted(false);
^
panel.java:32: illegal start of type
b1.setFocusPainted(false);
^
panel.java:33: <identifier> expected
b1.setBorderPainted(false);
^
panel.java:33: illegal start of type
b1.setBorderPainted(false);
^
panel.java:34: <identifier> expected
b1.setContentAreaFilled(false);
^
panel.java:34: illegal start of type
b1.setContentAreaFilled(false);
^
panel.java:35: <identifier> expected
b1.setBorder(BorderFactory.createEmptyBord
^
panel.java:35: <identifier> expected
b1.setBorder(BorderFactory.createEmptyBord

panel.java:36: <identifier> expected
b1.setBorderPainted(false);
^
panel.java:36: illegal start of type
b1.setBorderPainted(false);
^
panel.java:37: <identifier> expected
b1.addActionListener(this);
^
panel.java:37: illegal start of type
b1.addActionListener(this);
^
panel.java:38: <identifier> expected
b1.setBackground(Color.green);
^
panel.java:38: <identifier> expected
b1.setBackground(Color.green);
^
panel.java:40: <identifier> expected
p1.setBackground(Color.black);
^
panel.java:40: <identifier> expected
p1.setBackground(Color.black);
^
panel.java:41: <identifier> expected
p1.add(l1);
^
panel.java:41: <identifier> expected
p1.add(l1);
^
panel.java:42: <identifier> expected
p2.setBackground(Color.green);
^
panel.java:42: <identifier> expected
p2.setBackground(Color.green);
^
panel.java:43: <identifier> expected
p3.setBackground(Color.red);
^
panel.java:43: <identifier> expected
p3.setBackground(Color.red);
^
panel.java:44: <identifier> expected
p4.setBackground(Color.blue);
^
panel.java:44: <identifier> expected
p4.setBackground(Color.blue);
^
panel.java:45: <identifier> expected
p.add(p1);
^
panel.java:45: <identifier> expected
p.add(p1);
^
panel.java:46: <identifier> expected
p.add(p2);
^
panel.java:46: <identifier> expected
p.add(p2);
^
panel.java:47: <identifier> expected
p.add(p3);
^
panel.java:47: <identifier> expected
p.add(p3);
^
panel.java:48: <identifier> expected
p4.add(b1);
^
panel.java:48: <identifier> expected
p4.add(b1);
^
panel.java:50: <identifier> expected
frame.add(p,BorderLayout.CENTER);
^
panel.java:50: <identifier> expected
frame.add(p,BorderLayout.CENTER);
^
panel.java:50: <identifier> expected
frame.add(p,BorderLayout.CENTER);
^
panel.java:51: <identifier> expected
frame.add(p4,BorderLayout.SOUTH);
^
panel.java:51: <identifier> expected
frame.add(p4,BorderLayout.SOUTH);
^
panel.java:51: <identifier> expected
frame.add(p4,BorderLayout.SOUTH);
^
panel.java:52: <identifier> expected
frame.pack();
^
panel.java:53: <identifier> expected
frame.setVisible(true);
^
panel.java:53: illegal start of type
frame.setVisible(true);
^
panel.java:55: illegal start of type
try
^
panel.java:65: illegal start of type
catch(Exception e)
^
panel.java:65: ';' expected
catch(Exception e)
^
61 errors
*/
Last edited by Tekmaven; Jul 2nd, 2009 at 5:29 pm. Reason: Code Tags
Similar Threads
Reputation Points: 10
Solved Threads: 0
Newbie Poster
karamjeet2004 is offline Offline
12 posts
since Jul 2009
Permalink
Jul 1st, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

Yes. Because you have no main method - you need to put any code (other than variable declarations) inside methods. The main method is the method that runs when you first start your program, *edit*


Oops, nevermind - I see that you do have a main method. For statements like String lang, then lang = "abc", you would need to initially just say String lang = "abc"; . . and what I said about only having variable declarations still stands. lang = "abc" is an assignment statement, and thus, isn't allowed unless you do it inside of a method.
Last edited by BestJewSinceJC; Jul 1st, 2009 at 10:30 pm.
Reputation Points: 874
Solved Threads: 352
Posting Maven
BestJewSinceJC is offline Offline
2,758 posts
since Sep 2008
Permalink
Jul 1st, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

edit, sorry guys. Combined the two posts.
Last edited by BestJewSinceJC; Jul 1st, 2009 at 10:30 pm.
Reputation Points: 874
Solved Threads: 352
Posting Maven
BestJewSinceJC is offline Offline
2,758 posts
since Sep 2008
Permalink
Jul 2nd, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

I am not satisfied with this answer
Reputation Points: 10
Solved Threads: 0
Newbie Poster
karamjeet2004 is offline Offline
12 posts
since Jul 2009
Permalink
Jul 2nd, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

It gives me errors like previous one
Reputation Points: 10
Solved Threads: 0
Newbie Poster
karamjeet2004 is offline Offline
12 posts
since Jul 2009
Permalink
Jul 2nd, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

Satisfied or not, he's right. Everything except variable declarations have to be inside a method. Post your latest code, with code=java tags.
Featured Poster
Reputation Points: 1924
Solved Threads: 951
Posting Expert
JamesCherrill is online now Online
5,787 posts
since Apr 2008
Permalink
Jul 2nd, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

Guys i changed the code now i get 3 errors plz HLP me out errors are after the code
//code
java Syntax (Toggle Plain Text)
  1. /*<applet code=panel.class height=300 width=500></applet>*/
  2. import javax.swing.*;
  3. import java.awt.*;
  4. import java.awt.geom.*;
  5. import java.sql.*;
  6. import java.awt.event.*;
  7. import java.net.*;
  8. public class panel extends JApplet implements ActionListener{
  9. 	 ResultSet res;
  10. 	 Connection con;
  11. 	 Statement stat;
  12.          JFrame frame;
  13.          JButton b1;
  14. 	 JLabel l1,l2,l3;
  15. 	 JPanel p,p1,p2,p3,p4;
  16. 	 ImageIcon button;
  17. public void init(){
  18.  
  19. 	 p=new JPanel();
  20. 	 p1=new JPanel();
  21. 	 p2=new JPanel();
  22. 	 p3=new JPanel();
  23. 	 p4=new JPanel();
  24. 	 l1=new JLabel();
  25. 	 l2=new JLabel();
  26.  	 l3=new JLabel();
  27. 	 b1=new JButton();
  28. 	frame = new JFrame("Graphics Button");
  29. 	button=new ImageIcon("magnifier1.jpg");
  30. 	p.setSize(100,100);
  31. 	p.setLayout(new GridLayout(3,0));
  32. 	p1.setBackground(Color.black);
  33. 	p1.add(l1);
  34. 	p2.setBackground(Color.green);
  35. 	p3.setBackground(Color.red);
  36. 	p4.setBackground(Color.blue);
  37. 	p.add(p1);
  38. 	p.add(p2);
  39. 	p.add(p3);
  40. 	p4.add(b1);
  41. 	b1.setIcon(button);
  42. 	b1.setOpaque(false);
  43. 	b1.setFocusPainted(false);
  44. 	b1.setBorderPainted(false);
  45. 	b1.setContentAreaFilled(false);
  46. 	b1.setBorder(BorderFactory.createEmptyBorder(0,0,0,0));
  47. 	b1.setBorderPainted(false);
  48. 	b1.addActionListener(this);
  49. 	frame.add(p,BorderLayout.CENTER);
  50. 	frame.add(p4,BorderLayout.SOUTH);
  51. 	frame.pack();
  52. 	frame.setVisible(true);
  53.  }//end init
  54. try
  55.  {
  56. 	Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
  57. 	con=DriverManager.getConnection("jdbc:odbc:guru","","");
  58.  try{
  59.  
  60. 	stat = conn.createStatement();
  61. 	res = stat.executeQuery("Select * from granth");
  62. 	res.next();
  63.  
  64. //con.close();
  65.     }
  66. catch(Exception e){
  67. 	e.printStackTrace();
  68.     }
  69.  }
  70. catch(Exception e){
  71. 	e.printStackTrace();
  72.  }//end of try
  73. public void actionPerformed(ActionEvent e)  {
  74. 	if(e.getSource() == b1)   {
  75. 	try  {
  76. 	res.next();
  77. 	}
  78. 	catch(Exception ee) {}//end of try
  79. 	showRecord(res);
  80. 	}//end if
  81. 	}//end action performed
  82. public void showRecord(ResultSet res)   {
  83. 	try  {
  84. 	l1.setText(res.getString(1));
  85. 	l2.setText(res.getString(2));
  86. 	}
  87. 	catch(Exception e)  {}//end try
  88.  
  89.         }//end of show record
  90. }
/*errors
C:\Documents and Settings\Desktop>javac panel.java
panel.java:54: illegal start of type
try
^
panel.java:70: illegal start of type
catch(Exception e){
^
panel.java:70: ';' expected
catch(Exception e){
^
3 errors
*/
Last edited by Tekmaven; Jul 2nd, 2009 at 5:32 pm. Reason: Code Tags
Reputation Points: 10
Solved Threads: 0
Newbie Poster
karamjeet2004 is offline Offline
12 posts
since Jul 2009
Permalink
Jul 2nd, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

Everything except variable declarations still have to be inside a method. Indent your code so you can see where methods and classes end. Your errors start immediately after the end of the init method because the following code isn't in a method.
This would have been obvious to you with proper indentation and code tags.
Last edited by JamesCherrill; Jul 2nd, 2009 at 8:51 am.
Featured Poster
Reputation Points: 1924
Solved Threads: 951
Posting Expert
JamesCherrill is online now Online
5,787 posts
since Apr 2008
Permalink
Jul 2nd, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

ps: If you have code that looks like this:
Java Syntax (Toggle Plain Text)
  1. catch(Exception ee) {}
then what you are saying is: "if my code goes wrong I do not want to know why or where it happened. Please just stop executing and give me no help at all".
Try replacing all those with
Java Syntax (Toggle Plain Text)
  1. catch(Exception ee) {
  2.   ee.printStackTrace();
  3. }
so you know what's happening.
Last edited by JamesCherrill; Jul 2nd, 2009 at 9:06 am.
Featured Poster
Reputation Points: 1924
Solved Threads: 951
Posting Expert
JamesCherrill is online now Online
5,787 posts
since Apr 2008
Permalink
Jul 2nd, 2009
0

Re: Big errors i got plz help me out illegal type of expression type,

thnks my code is now running
Reputation Points: 10
Solved Threads: 0
Newbie Poster
karamjeet2004 is offline Offline
12 posts
since Jul 2009

This thread is solved

Either the thread starter or a moderator has marked this thread as solved. You can most likely trust the responses and answers given. There is most likely no reason for any further responses to be posted here. If you have a related question, please start a new thread in this forum instead.

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.
Message:
Previous Thread in Java Forum Timeline: print a pascal type char pattern
Next Thread in Java Forum Timeline: Student Assignment





About Us | Contact Us | Advertise | Acceptable Use Policy
Forum Index | Build Custom RSS Feed


Follow us on Twitter


© 2011 DaniWeb® LLC