java - 如何使用分隔符按字符串(逐字而不是字符)从字符串数组 [] 中拆分字符串？

Question

void displayResult() {
    String str = "tamilnadu||chennai-karanataka||bengaluru";
    String[] res = str.split("\\-");
    System.out.println(res.length);//res length is 2 

    //res contains two strings splited by -
    String[] result = res.toString().split("\\||");
    //again splitting by || but getting as characters, i need to get word by      word
    // how to achieve this
    System.out.println(result.length);//result length is 28
}
// i was supposed to get tamilnadu and chennai from first string[] res

String[] res 保存两个被 || 分割的字符串 - 我正在尝试以相同的方式分割 res 以获得被 || 分割的字符串管道符号，但我得到的是字符如何变得像以前一样

Answer 1

不要使用两次 split 方法。您可以通过一次 split 方法完成您的任务。像这样，

 void displayResult() {

   String str = "tamilnadu||chennai-karanataka||bengaluru";

   String[] res = str.split("\\|\\||-");

   for(String city : res){

     System.out.println(city);

   }

 }

你的输出将是:-

tamilnadu

chennai

karanataka

bengaluru