在逗号分割字符串 [英] Split string at commas

问题描述

我有一些Java中的字符串，如下所示：

 一个String =AAC格式1Zl亚琛,, DE，5048.850N，00611.483E，189.0米，1 ,,,,亚琛
 

我想在每一个逗号分割字符串并分配分裂值的数组。但我无法弄清楚如何保持多个逗号，这应该是空的空值。

结果数组应该是这样的：

 数组[0] =AAC格式1Zl亚琛
    阵列[1] = NULL
    阵列[2] =DE
    数组[3] =5048.850N
    数组[4] =00611.483E
    阵列[5] =189.0米
    阵列[6] =1
    阵列[7] = NULL
    数组[8] = NULL
    阵列[9] = NULL
    数组[10] =亚琛
 

解决方案

您可以使用的分裂，字符串的方法，用空替换空字符串

 进口java.util.Arrays中;公共类RegFun {    公共静态无效的主要（字串[] args）{
        字符串s =\\AAC格式1Zl亚琛\\,, DE，5048.850N，00611.483E，189.0米，1 ,,,, \\亚琛\\;
        的String [] =拆分s.split（）;        的for（int i = 0; I＆LT; split.length;我++）{
            如果（拆分[I] .equals（））{
                拆分[我] = NULL;
            }
        }        的System.out.println（Arrays.toString（分割））;
    }
}
 

输出

  [AAC格式1Zl亚琛，空，DE，5048.850N，00611.483E，189.0米，1，NULL，NULL，NULL，亚琛]
 

I have some strings in Java, which look like the following:

    String s = ""Aac 1Zl Aachen",,DE,5048.850N,00611.483E,189.0m,1,,,,"AACHEN""

I wanna split the string at every comma and assign the splitted values to an array. But i couldn't figure out how to keep the empty values between the multiple commas, which should be null.

The resulting array should look like this:

    array[0] = ""Aac 1Zl Aachen""
    array[1] = null
    array[2] = "DE"
    array[3] = "5048.850N"
    array[4] = "00611.483E"
    array[5] = "189.0m"
    array[6] = "1"
    array[7] = null
    array[8] = null
    array[9] = null
    array[10] = ""AACHEN""

解决方案

You can use split, method of String and replace empty string with null

import java.util.Arrays;

public class RegFun {

    public static void main(String[] args) {
        String s = "\"Aac 1Zl Aachen\",,DE,5048.850N,00611.483E,189.0m,1,,,,\"AACHEN\"";
        String[] split = s.split(",");

        for (int i = 0; i < split.length; i++) {
            if (split[i].equals("")) {
                split[i] = null;
            }
        }

        System.out.println(Arrays.toString(split));
    }
}

output

["Aac 1Zl Aachen", null, DE, 5048.850N, 00611.483E, 189.0m, 1, null, null, null, "AACHEN"]

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