java去除字符串中的空格、回车、换行符、制表符
import java.util.regex.Matcher; import java.util.regex.Pattern; /** * @author lei * 2011-9-2 */ public class StringUtils { public static String replaceBlank(String str) { String dest = ""; if (str!=null) { Pattern p = Pattern.compile("\\s*|\t|\r|\n"); Matcher m = p.matcher(str); dest = m.replaceAll(""); } return dest; } public static void main(String[] args) { System.out.println(StringUtils.replaceBlank("just do it!")); }
/*-----------------------------------
笨方法:String s = "你要去除的字符串";
1.去除空格:s = s.replace('\\s','');
2.去除回车:s = s.replace('\n','');
这样也可以把空格和回车去掉,其他也可以照这样做。
注:\n 回车(\u000a)
\t 水平制表符(\u0009)
\s 空格(\u0008)
\r 换行(\u000d)*/
}

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