Java:使用带有多个分隔符的 split 函数

Question

我想根据两个分隔符分割字符串。

1. 第一个分隔符是空格“”和
2. 第二个是“.”
3. 但是，最后一句以句号结尾的句子不应该是 split 了。

对于给定的字符串:

Undersay    v.  To say by way of derogation or contradiction.

我想要以下输出

Undersay

v.

To say by way of derogation or contradiction.

Answer 1

您可以尝试使用此正则表达式:

 (?=.*\.(?=.*\.))|(?<=\.)(?=.*\.)

或者作为java字符串:

" (?=.*\\.(?=.*\\.))|(?<=\\.)(?=.*\\.)"

Regex Demo

示例 Java 代码:

final String regex1 = " (?=.*\\.(?=.*\\.))|(?<=\\.)(?=.*\\.)"
final String string = "Undersay v.To say by way of derogation or contradiction.";

String[] result=string.split(regex1);

for(String s:result) {
    System.out.println(s);
}

将输出:

Undersay

v.

To say by way of derogation or contradiction.