java - 如何使用正则表达式拆分此字符串“-25+26+78-21”以获得-25、26、78、-21？

Question

如何使用正则表达式拆分此字符串“-25+26+78-21”以获得-25、26、78、-21？

标签： javaregex

Answer 1

你可以尝试这样的事情：

    //your input
    String numbers = "-25+26+78-21";
    //split lookahead by + or - and store them in array of strings
    //you can do with it afterwards whatever you like, turn it into ints for example
    String[] tokens = numbers.split("(?=\\-)|\\+");
    System.out.println(Arrays.asList(tokens));