我在Java中有一个字符串,它以斜杠开头,但是斜杠的数量是未知的。如何在开始时删除所有这些斜杠?
例如:
String a="//abc";
应输出abc
。
String b="////abc";
还应输出abc
。
答案 0 :(得分:2)
您可以使用简单的模式:
private static final Pattern HEADING_SLASHES = Pattern.compile("^/+");
// ...
public static String removeHeadingSlashes(final String input)
{
// .replaceFirst() or .replaceAll() will have the same effect, so...
return HEADING_SLASHES.matcher(input).replaceFirst("");
}
答案 1 :(得分:2)
诀窍是删除前导斜杠,而不是全斜杠。
public class StringTest {
public static void main(String[] args) {
String url = "////abc//def";
System.out.println(url.replaceFirst("/+", ""));
}
}
答案 2 :(得分:1)
MakePRI : warning 0xdef01051: No default or neutral resource given for 'Files/Project/Strings/testfile_de.xml'. The application may throw an exception for certain user configurations when retrieving the resources.
MakePRI : warning 0xdef00522: Resources found for language(s) 'en,de' but no resources found for default language(s): 'en-US'. Change the default language or qualify resources with the default language.
输出是:
AB / C