Does it has some method to set Max Length on Field!

I want to set a maximun length on textfield and jtable cell to control the number of character on the field.
do you have any way?
thanks!

aaaaalmost, quizmaster.
But your code doesnt check the result size.
If offs = 100 and maxlength = 100, it would
allow any String to be inserted.
Anyway...is a detail of course.
one other possibility, also improveable:
public class CharacterLimitedDocument extends PlainDocument
private int maxNumberOfCharacters = 64;
public CharacterLimitedDocument(int maxCharacters )
    super();
    this.maxNumberOfCharacters = maxCharacters;
public void insertString(int offs, String str, AttributeSet a) throws BadLocationException
    if( this.getLength() + str.length() < maxNumberOfCharacters )
       super.insertString(offs,str,a);
} // CharacterLimitedDocument

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Sorry, I'm just not finish typing when accidently push "Post Message".
This the full question of mine.
Currently I use FM REUSE_ALV_GRID_DISPLAYfor my report. The problem is, my internal table contain some field which have no reference to any data dictionary.
This part of my code when set that kind of field T_OUT-ARKTX into t_field_cat.
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        i_callback_program                           = z_repid
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        it_fieldcat                                         = t_field_cat
        i_save                                              = 'A'
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        t_outtab                                           = t_out_final
      EXCEPTIONS
        program_error                                   = 1
In internal table T_OUT, ARKTX length = 200. But somehow when it is displayed in ALV, it just show 128 characters.
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How to set max length to textfield?

I have a textfield. I want to set maxlength to this textfield. Example, length = 3.
Help me?

I succeeded. That link you sent very well. Thanks you. Then it's code:
JTextFieldLimit.java
import javax.swing.text.*;
//import com.sun.java.swing.*;
//import javax.swing.text.*;
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tswing.java
import java.awt.*;
import javax.swing.*;
//import javax.swing.*;
public class tswing extends JApplet{
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<applet code=tswing width=500 height=500>
</applet>
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By tungld_c0701m+

PL/SQL Function to convert fields & set max length

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Write a stored PL-SQL function called namefct that will convert two varchar2 fields (first and last names) into the format: lastname, firstname with a maximum length of 10 chars. If the combined size of the two names is greater than 10 characters, you will issue an error message indicating the name has been shortened to 10 characters and return only the first ten characters, otherwise return the entire name. Test the namefct function by using the staff table created in Part 1 (above). Turn in: the SQL statements to build the function, execute the sample code and the resulting output.
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BEGIN
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Write a stored PL-SQL function called namefct that
will convert two varchar2 fields (first and last
names) into the format: lastname, firstname with a
maximum length of 10 chars. If the combined size of
the two names is greater than 10 characters, you will
issue an error message indicating the name has been
shortened to 10 characters and return only the first
ten characters, otherwise return the entire name.
Test the namefct function by using the staff table
created in Part 1 (above). Turn in: the SQL
statements to build the function, execute the sample
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SQL> ed
Wrote file afiedt.buf
1 CREATE OR REPLACE FUNCTION f_name(p_forename IN VARCHAR2, p_surname IN VARCHAR2) RETURN VARCHAR2 IS
2    name_too_long EXCEPTION;
3 BEGIN
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7    RETURN p_surname||', '||p_forename;
8 EXCEPTION
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11      RETURN SUBSTR(p_surname||', '||p_forename, 1, 10);
12* END;
SQL> /
Function created.
SQL> select f_name('FRED','SIMS') from dual;
F_NAME('FRED','SIMS')
SIMS, FRED
SQL> select f_name('FRED','SIMKINSON') from dual;
F_NAME('FRED','SIMKINSON')
SIMKINSON,
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;)

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Message was edited by:
Mike Mac

Getting the max length

i am using pl/sql and i need to do some validation regarding the max length of the string. but the problem is that i have to refer back to the database for the length so that if the database change, my code don't change.
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eg:
lets say i got a table call Person with column Name(varchar2(66)) and Sex(char(1))
so how i retrieve the max length of the field Name?
thanks

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2 /
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12 /
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oops! string is too long
PL/SQL procedure successfully completed.
SQL>
SQL> ROLLBACK
2 /
Rollback complete.
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2 /
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2 /
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SQL> Cheers, APC

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