Java Format String Spacing

Question

I've been looking through the forum to find an exact answer to this, but have been unable to do so. Here is my code:

String item = String.format("%-6s $%-6.2f Number in Inventory: %-3d", this.getBarcode(), this.getPrice(), this.getInventory());

The output looks like this for two items put in:

DR4423 $700.04 Number in Inventory: 24 
LD342  $1234.24 Number in Inventory: 425

The output should look like this, with an extra character space in the price for Number in Inventory to line up:

DR4423 $ 700.04 Number in Inventory: 24 
LD342  $1234.24 Number in Inventory: 425

How do I make the "Number in Inventory" line up? It looks like the first item in the example lost an empty character space as it only has 5 digits instead of 6 for the price. Thanks in advance for the help.

Answer 1

I think you need to use:

String.format("%-6s $%-7.2f Number in Inventory: %-3d", this.getBarcode(), this.getPrice(), this.getInventory());

Or, if you want the space added to the front:

String.format("%-6s $%#7.2f Number in Inventory: %-3d", this.getBarcode(), this.getPrice(), this.getInventory());

Notice the %-7 instead of %-6 . The period is counted as a character.

Answer 2

在价格和“数字”之间插入\\t应该可以正常工作。

Answer 3

- in %-6.2f means you want passed number to be aligned to left, like:

|123,45|
|123,40|
|123,00|
|12,00 |
|1,00  |

If you want to align your number to right like:

|123,45|
|123,40|
|123,00|
| 12,00|
|  1,00|

then simply remove this - .

You should should also probably set minimal used length to 7 since . also takes some space which means that to produce

| 700.04|
 1234567

you need 7 characters.

So try with %-6s $%7.2f Number in Inventory: %-3d