Filling to get a certain number of digits in a number

Question

String val = "98"

I need to get the output as 0000098(7 digits).

I need to leave in writing zeros in a string or integer value ...

The number stored in val is dynamic and can contain any number of digits, but the output should always be 7 digits.

+5

Bharath an Jul 13 '12 at 7:56

4 answers

tim_yates · Answer 1 · 2012-07-13T08:25:08+0000

In groovy, you can insert lines like this:

val.padLeft( 7, '0' )

This will put the left side of the string with zeros until it becomes 7 characters long

daniel kullmann · Answer 2 · 2012-07-13T08:02:40+0000

public class A {
  public static void main(String[] args) {
    System.out.println(String.format("%07d", 98)); // -> 0000098
  }
}

Michael Laffargue · Answer 3 · 2012-07-13T08:00:56+0000

jjordan · Answer 4 · 2012-07-13T08:07:15+0000

String NumberFormat :

NumberFormat formatter = new DecimalFormat("0000000");

This means your string will be filled with zeros as you want.

And then, to get the string format, you can do:

String formatRes = formatter.format(new Double(val));

because the "format" method requires a double argument.