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生成订单编号
生成订单编号
xiaoxiao
2021-03-26
18
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 import java.util.Scanner; public class Test { //A20150400001 public static String getNumber(String kind, String year, String month, String num){ if (month.length() == 1 ){ month = "0" + month; } if (num.length() == 1 ){ num = "0000" + num; } else if (num.length() == 2 ){ num = "000" + num; } else if (num.length() == 3 ){ num = "00" + num; } else if (num.length() == 4 ){ num = "0" + num; } else if (num.length() > 5 ){ System.out.println( "num is out of range" ); } return kind.concat(year).concat(month).concat(num); } public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println( "input kinds [eg: A]:" ); String kind = sc.next(); System.out.println( "input year [eg:2015]:" ); String year = sc.next(); System.out.println( "input month between 1 and 12:" ); String month = sc.next(); System.out.println( "input num between 1 and 99999:" ); String num = sc.next(); System.out.println( "The result is :" + getNumber(kind, year, month, num));; } }
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