在Java中将String转换为int数组 [英] Convert String to int array in java

问题描述

我有一个字符串

String arr= "[1,2]";

即[1,2]就像一个字符串

ie "[1,2]" is like a single string

如何将此arr转换为java中的int数组

How do convert this arr to int array in java

推荐答案

String arr = "[1,2]";
String[] items = arr.replaceAll("\\[", "").replaceAll("\\]", "").replaceAll("\\s", "").split(",");

int[] results = new int[items.length];

for (int i = 0; i < items.length; i++) {
    try {
        results[i] = Integer.parseInt(items[i]);
    } catch (NumberFormatException nfe) {
        //NOTE: write something here if you need to recover from formatting errors
    };
}

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