Question

如何在字符串值中找到回车符？我已经按照方式实现了它，但是对于长字符串值，有时它可能不起作用。谢谢。

String value = "carriage\n return\r\n in\n a\r\n string\n" 

for(String line : value.split("\n")) {
    if(line.contains("\r")) {
       System.out.println("Carriage return found");
    }
}

Answer 1

关注这篇文章：Difference between \n and \r?我认为你可以这样做：

String value = "carriage\n return\r\n in\n a\r\n string\n";

    for (String line : value.split("\n|\r"))
        if (!line.trim().isEmpty())
            System.out.println("Carriage return found:" + line.trim());

输出：

Carriage return found:carriage
Carriage return found:return
Carriage return found:in
Carriage return found:a
Carriage return found:string

Java +如何在字符串值中查找回车符

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