Specifying a Minimum Field Width : Formatter Field Width « Development « Java Tutorial

1. Java Tutorial
2. Development
3. Formatter Field Width

An integer between the % sign and the format conversion code acts as a minimum field width specifier.

The default padding is done with spaces.

If you want to pad with 0's, place a 0 before the field width specifier.

For example, %05d will pad a number of less than five digits with 0's.

import java.util.Formatter;

public class MainClass {
  public static void main(String args[]) {
    Formatter fmt = new Formatter();

    fmt.format("%05d", 88);
    System.out.println(fmt);
  }
}

00088