Nonsense is not much to say, the key code looks like this:
package cn.com.songjy; import Java.text.NumberFormat;//java to the left of the number 0 public class Numbe rformattest {public static void main (string[] args) {//To test data int i = 1;//Get an instance of NumberFormat NumberFormat NF = number
Format.getinstance ();
Sets whether to use group nf.setgroupingused (false);
Set the maximum number of integer digits nf.setmaximumintegerdigits (4);
Set minimum integer digits nf.setminimumintegerdigits (4);
Output Test Statement System.out.println (Nf.format (i));
}/** * Java, the implementation of automatic complement 0 in front of the digital spin string.
* */public class Teststringformat {public static void main (string[] args) {int younumber = 1;
0 represents a front complement of 0//4 representing a length of 4//d representing the parameter as a positive String str = String.Format ("%04d", Younumber); System.out.println (str);
0001}///stream number plus 1 after return, serial number length is 4 private static final String Str_format = "0000";
public static string haoaddone_2 (String Liushuihao) {Integer Inthao = Integer.parseint (Liushuihao);
DecimalFormat df = new DecimalFormat (Str_format);
Return Df.format (Inthao); }
OK, the above code is about Java string string complement 0 or space implementation code, very good, I hope to help you, if you have any questions welcome to my message, small series will promptly reply to everyone, here also thank you for your support cloud Habitat community site!