[英]How to convert a string contains array format to java array or list?
我有一个像这样的字符串:
String res = '["A","B","0","1"]';
如何将其转换为Java中的数组或列表,使其变成这样:
String[] r = {"A","B","0","1"};
由于您的字符串是正确的Json字符串,因此可以使用gson
库:
String s = "[\"A\",\"B\",\"0\",\"1\"]";
Gson gson = new GsonBuilder().create();
String[] arr = gson.fromJson(s, String[].class);
// {"A","B","0","1"}
不使用Gson
,您可以通过以下方法获得所需的结果-
String inputStr = "[\"A\",\"B\",\"0\",\"1\"]";
String[] strArray = inputStr.split("[^\\w\\d]");
List<String> list = new ArrayList<>();
for (String str : strArray) {
if (str != null && !str.isEmpty()) {
list.add(str);
}
}
System.out.println(list);
输出将是:[A,B,0、1]
String res = "[A,B,0,1]";
res = res.replace("[", "");
res = res.replace("]", "");
res = res.replaceAll(",", "");
String [] arrayOutput = new String [res.length()];
char [] ar = res.toCharArray();
for(int i = 0; i< ar.length; i++)
{
char buffer = ar[i];
arrayOutput[i] = String.valueOf(buffer);
}
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