java基于句号的分割句子和打印序列号，每个句子前都有要点，包括下一行[关闭]

Question

我想根据“”来拆分句子并在每个句子前打印序列号，例如

String str= "Hello World."
           +"This is new."
           +"Java Program.";

输出：-

    1.1.Hello World.

    1.2.This is new.

    1.3.Java Program.

Answer 1

您需要一个简单的模式，如[^.]\\

int i = 1;
String str = "Hello World.This is new.Java Program.";
Matcher m = Pattern.compile("[^.]+\\.").matcher(str);
while (m.find()) {
    System.out.println("1." + (i++) + "." + m.group());
}

1.1.Hello World.
1.2.This is new.
1.3.Java Program.