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Thread: adding Checkboxes to JTextArea

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    Default adding Checkboxes to JTextArea

     
    JTextArea display = new JTextArea();
      CheckboxGroup idList = new CheckboxGroup();
        Checkbox cID=null;
    display.append(add(new Checkbox(idno, idList, false))  + " " + thirdrow + " " + firstrow + " " + "#" + secondrow + " " + fifthrow + " " + sixthrow + "/" + seventhrow + "/" + eightrow + " TO " + ninerow + "/" + tenrow + "/" + elevenrow + " " + "$" + twelverow + " "  + fourthrow + "\n" + "\n");

    idno is an int from the mysql..

    i want to insert the checkbox to the JTextArea so that the user could select which entry he want to make the update... the error or bug i get is shown in picture



  2. #2
    Super Moderator Norm's Avatar
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    Default Re: adding Checkboxes to JTextArea

    shown in picture
    What is shown looks like what is returned by the object's toString() method. When you build a String and concatenate an object into it, the compiler calls the object's toString() to get a String to concatentate.
    The append() method takes a String as an argument.
    If you want to put components into a text display area, look at using the JTextPane class.

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    Default Re: adding Checkboxes to JTextArea

    Quote Originally Posted by Norm View Post
    What is shown looks like what is returned by the object's toString() method. When you build a String and concatenate an object into it, the compiler calls the object's toString() to get a String to concatentate.
    The append() method takes a String as an argument.
    If you want to put components into a text display area, look at using the JTextPane class.
    sorry i am really new to this topic of java... after reading the API file i don't really understand how do i merge the JTextArea with my Checkbox with the JTextPane??

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    Super Moderator Norm's Avatar
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    Default Re: adding Checkboxes to JTextArea

    merge the JTextArea with my Checkbox with the JTextPane??
    The JTextPane replaces the JTextArea.
    The JTextPane allows you to display text and to have components like a Checkbox in with the text.
    Very similar to how HTML allows text and controls to be displayed in the same area.

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    Default Re: adding Checkboxes to JTextArea

    Quote Originally Posted by Norm View Post
    The JTextPane replaces the JTextArea.
    The JTextPane allows you to display text and to have components like a Checkbox in with the text.
    Very similar to how HTML allows text and controls to be displayed in the same area.
    hi.. sorry for asking this.. i understand how do i insert the text and component to the JTextPane now.. and from my research CheckBox seems like only allow 1box to be selected at any 1 time.. as for JCheckBox i don't really understand how do i handle the selected boxes... what i need is something like those email checkboxes whereby u got click on multi checkbox and do a delete.... and the check box name or id would like link or set which a pri key gotten from the database...
    Last edited by bczm8703; November 7th, 2011 at 01:45 AM.

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    Super Moderator Norm's Avatar
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    Default Re: adding Checkboxes to JTextArea

    CheckBox seems like only allow 1box to be selected at any 1 time..
    I don't think that is correct. You can select all or none. Are you thinking of RadioButtons where only one of a group can be selected at a time.
    how do i handle the selected boxes
    Read the Tutorial: How to Use Buttons, Check Boxes, and Radio Buttons (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)

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