如何在删除数组中的字符串后删除逗号

Question

我的阵列：

["12","empty","22"],["13","23","33"]]

我的正则表达方式：

arr.replace("\"empty\"", "")
String[] array = arr.split("\",\"");

输出

["12",,"22"],["13","23","33"]]

在我的字符串数组中替换之后删除逗号的最佳方法是什么？

Answer 1

这样可行。

    String arr="[\"12\",\"empty\",\"22\"],[\"13\",\"23\",\"33\"]]";
    System.out.println("Input: "+arr);
    System.out.println("Result: "+arr.replaceAll("\"empty\",?",""));

给出

Input: ["12","empty","22"],["13","23","33"]]
Result: ["12","22"],["13","23","33"]]