Java中的进一步拆分数组

Question

我有一个字符串数组'oldArray'&；要使用“oldArray”的元素创建一个“newArray”，方法如下：

String[] oldArray = {"1|14", "10|15", "16|5"};
newArray after spliting oldArary should be like :

newArray = [1,14,10,15,16,5];

在新数组中打印

Answer 1

试试这个

public static void main(String[] args) throws IOException {
    String[] oldArray = {"1|14", "10|15", "16|5"};
    String[] newArray = Arrays.stream(oldArray)
        .flatMap(s -> Arrays.stream(s.split("\\|")))
        .toArray(String[]::new);
    System.out.println(Arrays.toString(newArray));
}

输出：

[1, 14, 10, 15, 16, 5]