基于Java中的多个定界符将字符串拆分为数组 [英] Split String into Array based on multiple delimiters in Java

问题描述

我正在尝试根据多个值将字符串分成两个不同的数组

I am trying to split a string into two different arrays based on multiple values

例如，用户在控制台窗口中输入

For example user inputs in the console window

   2+4/8*9

我只希望数字位于数组中

I want only the numbers to be in an array

Arr[0] = 2;
Arr[1] = 4;
Arr[2] = 8;
Arr[3] = 9;

然后

Operator[0] = +;
Operator[1] = /;
Operator[2] = *;

我熟悉只使用一个定界符的split方法，但是如何分割字符串

I am familiar with split method that uses only one delimiter but how will I be able to split the string based on various number of delimiters?

以下是我尝试过的最新代码，通过查看互联网上的各种文章却遇到错误

Following is the latest code I have tried by looking at various articles on the internet but getting error

Scanner in = new Scanner(System.in);
System.out.println("Enter input");
s = in.toString();

String [] operators = s.split("+|-|*|/"); //Also tried s.split("\\+\\-\\*\\/")

for(int i = 0; i<operators.length; i++) {
    System.out.println(operators[i]);
}

推荐答案

使用正则表达式，我们可以将表达式并将操作数存储在String []

Using Regex we can split the expression and store the operand in String[]

String [] t = st.split（-| \\＃| \ \（| \\）| \\ {| \\} | \\< | \\> | \\s + | \\（\＼ \＼ | \\;）;

正则表达式基于-，＃，（，）拆分字符串 ，{，}，<，>，空格，;，＃
表示（双引号）和（反斜线）之类的字符，然后迭代String的元素并删除字符。

The regex expression split String based on "-, #, (, ), {, }, <, >, space, ;, #" for character like "(double quote) and (backlash) then iterate the elements of String and remove the char.

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