在左键盘上加零的数字 [英] Adding number with zero in left pad

问题描述

首先抱歉愚蠢的问题，因为我是java的新手.其实我有一个字符串，其中包含一个数字，我想将其值增加到某个特定数字.我很困惑如何解释.下面是我需要做的例子.

First of all Sorry for foolish question As i am new to java. actually i have a string which contains a number in between i want to increment its value up to some specific number. i am very confused how to explain . below is the example what i need to do.

我有一个字符串，即:-
"03000001da 00000001 666666"
我想像下面那样增加它的值

I have a string i.e :-
"03000001da00000001666666"
and i want to increase its value like below

"03000001da 00000002 666666"
"03000001da 00000003 666666"
"03000001da 00000004 666666" 等

"03000001da00000002666666"
"03000001da00000003666666"
"03000001da00000004666666" etc.

我在下面编写了一个简单的Java代码:

I wrote a simple java code below:

但其打印错误，即:-
"03000001da 2 666666"
"03000001da 3 666666"
"03000001da 4 666666" 等

but its print wrongly i.e:-
"03000001da2666666"
"03000001da3666666"
"03000001da4666666" etc.

public class Demo {

public static void main(String[] args) {
        String content = "03000001da00000001666666";

        String firstIndex = content.substring(0, 10);
        String requireIndex = content.substring(10,18);
        String lastIndex  = content.substring(18, content.length());
       for(int i = 0; i <= 10;i++){
           System.out.println(firstIndex + (Integer.parseInt(requireIndex)+i) + lastIndex);
       }
    } 
}

需要一些帮助，请帮助我.

need some help please help me.

推荐答案

尝试一下:

public static void main(String[] args) {
    String content = "03000001da00000001666666";

    String firstIndex = content.substring(0, 10);
    String requireIndex = content.substring(10,18);
    String lastIndex  = content.substring(18);
    for(int i = 0; i <= 10;i++){
        System.out.printf("%s%08d%s%n",firstIndex, Integer.parseInt(requireIndex)+i, lastIndex);
    }
}

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