VOid(Java)


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Thread: VOid(Java)

  1. #1
    Join Date
    May 2006
    Posts
    3

    VOid(Java)

    Does anyone Knows how to void off Something??

    For example...

    using array i stored 10 item with ID
    Code:
    int [] item=new int [10] 
    item[1]=11000;
    item[2]=11001;
    ....
    when i key in the "11000" in a text field and press Enter button
    something will appear on my textArea
    Code:
    textarea.setText("the code which i preSet");
    BUT now My Question is .. How can i void off one item when i Press a void button... i dunno how to start off.. any one can help me??

  2. #2
    Join Date
    Mar 2005
    Location
    UK, London
    Posts
    150
    Hi, can u explain a little more plz.

  3. #3
    Join Date
    May 2006
    Posts
    3
    Quote Originally Posted by major
    Hi, can u explain a little more plz.
    ok.. no Problem... this is how my Program goes.. it reads an Xml and called out all the label buttons and function stored in it....
    i hard coded 4 item currently in item:
    Code:
    public int [] item=new int[100];
    
            item[0]=11000;
    	item[1]=11001;
    	item[2]=11002;
    	item[3]=11003;
    this items stored in Items ID which represent the Stuff i have in a store....
    when the ID is key into the textField....

    this will be seen on the textarea..

    Code:
    IF (textarea.getText()=11000)
    {
    toAppend="Coke"
    cost="0.60"          
    textarea.setText(toAppend+"\n"+"cost")
    }
    
    IF (textarea.getText()=11001)
    {
    toAppend="Sprite"
    cost="0.60"          
    textarea.setText(toAppend+"\n"+"cost")
    }

    IF my text area i display this 2 item and i wan to void off the last one(mean to delete one) how can i do it??

  4. #4
    Join Date
    Mar 2005
    Location
    UK, London
    Posts
    150
    okay is it a textarea where you will entere the number such as 10101 or a textfield, will you be entering the numbers in a row for example, if u wanted to add the following for coke in a textarea 010101 then for sprite 001110 will the textaraea look like this : 010101001110 or will the first number 010101 be deleted?

    You will need a keylistener to listen out for key events as you type.

  5. #5
    Join Date
    May 2006
    Posts
    3
    Quote Originally Posted by major
    okay is it a textarea where you will entere the number such as 10101 or a textfield, will you be entering the numbers in a row for example, if u wanted to add the following for coke in a textarea 010101 then for sprite 001110 will the textaraea look like this : 010101001110 or will the first number 010101 be deleted?

    You will need a keylistener to listen out for key events as you type.

    thanks i manage to do it... but what i was actually doin was having a numberpad on my program which i void button...



    the Problem i faced now is..

    Code:
    	String tex = text.getText();
    		int newlineIndex = tex.lastIndexOf('\n');
    		if (newlineIndex>=0) {
      		tex = tex.substring(0, newlineIndex);
    
    } else {
      		tex = "";
    }
    		text.setText(tex);
    by doin this.. it eats up my "\n" and i will have the next item keyed on the same line... is there any solution to this??

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