如何在android中提取这个字符串变量?

2022-01-15 00:00:00 string format android java 
String test=
      ["1","Low-level programming language",true],
      ["2","High level programming language",false],
      ["3","Machine language",false],["4","All of the above",false],
      ["5","None of these",false]

我想把这个文件像[1","Low-level programming language",true]等分成5种字符串变量.

I want to separate this file like [1","Low-level programming language",true] and others into 5 types of string variables.

推荐答案

你可以在一个简单的正则表达式上拆分:

You could split on a simple regex:

String [] splitStrings = test.split("\],\[");

你不想只用逗号分割，因为你只想要方括号之间的逗号.

You don't want to split on just comma because you only want the commas between the square brackets.

这是一个更完整的示例(如果需要，还有一个正则表达式可以保留括号)

Here is a more complete example (and a regex that holds onto the brackets if you want)

public static void main(String []args){
    String test="["1","Low-level programming language",true],["2","High level programming language",false],["3","Machine language",false],["4","All of the above",false],["5","None of these",false]";
    String [] splitStrings = test.split("(?!\]),(?=\[)");

    System.out.println(splitStrings[0]);
    System.out.println(splitStrings[1]);
    System.out.println(splitStrings[2]);
    System.out.println(splitStrings[3]);
    System.out.println(splitStrings[4]);
}

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