java处理字符串的空格 (包括char code 160, \t \s \r\ \n)

替换字符串左右两端的空格。并且将文件中  (char ASCII code 160);, 回车,换行符 替换;

字符串中间连续的空格替换成一个的方法:

public class regexTest
{
    public static void main(String[] args)
    {
        // TODO Auto-generated method stub
        //summary keyword title shortname

        String title = "\t\n" +
                "  1  title test \t\t  test title \n\t\r\t\t123\n456\t789\t\r\n1\t    ";

        System.out.println(title);

        System.out.println("===================================");

        System.out.println(regexTest.regStr(title));

        char space_1 = new Character(' ');//英文空格

        char space_2 = new Character('A');//中文空格

        System.out.println((int)space_1);

        System.out.println((int)space_2);

    }

    public static String regStr(String s)
    {

        //https://stackoverflow.com/questions/2132348/what-does-char-160-mean-in-my-source-code
        //http://www.unicode.org/charts/PDF/U0080.pdf
        return s.replace(String.valueOf((char)160), "").trim().replaceAll("[\\r|\\n]+", "").replaceAll("\\s+", " ");
        //return s.replace(String.valueOf((char)160), "").replaceAll("[\\t\\r|\\n|\\s| ]+", "");
    }
}

 

 关于char code的问题参照:

 https://stackoverflow.com/questions/2132348/what-does-char-160-mean-in-my-source-code

 http://www.unicode.org/charts/PDF/U0080.pdf

你可能感兴趣的:(java)