Databases
StackOverflow2013
Postsdbo
POJava - formatting string output to display in a TextArea
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POJava - formatting string output to display in a TextArea
    primarykey
    data
    text
    <p>I've got 2 fields to display to a textarea in a simple java application I'm writing to learn the swing library.</p> <p>Basically, this small app has a few buttons I can click and the values for each button get stored in an ArrayList. When I press "calculate", I want to output the names, values, and a sum of the numeric values at the bottom of the output.</p> <p>For example, element 1 in the ArrayList would be an object with a name of "ItemOne" and a value of 12. Element 2 would be an object with the name "ItemTwoHasALongName" and a value of 15.</p> <p>I want to output the following to a textarea:</p> <pre><code>ItemOne 15 ItemTwoHasALongName 12 Total: 27 </code></pre> <p>I have no problem outputting the values, but I have trouble getting the formatting to be correct. Here's what I have:</p> <pre><code>for (MyItemObjects itemObject : objItemObjects){ this.billTextArea.append(itemObject.getItemName() + " " + itemObject.GetItemCost()); total += itemObject.getmCost(); } this.textArea.append("Total: $" + Total + "\n"); </code></pre> <p>Now, I know I'm not left padding the item cost in the above example. Whenever I try to, I get awful looking output that isn't correct. </p> <p>Here's an example of how I'm trying to format the output as a string, then I append the string to the text area. How can I have the item name be left justified, and the item cost padded left by as many spaces as necessary (based on the item name's length) to get the cost to be in line as a column for each line? </p> <pre><code>String strLine = String.format("%" + maxLineLength + "s%", itemObject.getItemName() + " " + itemObject.GetItemCost()); </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USuser797963
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload