java to the left and right spaces (including full-size space, tab, carriage return)

In the development, we will encounter the need to remove about space needs, if only a simple spaces, adjustment to the trim () method can be, but if there are Chinese full-width, carriage return appears to be non-blank spaces, you need to customize to achieve development, this tool can achieve the following about those who seem to be space for all space characters.

import com.google.common.base.CharMatcher;

/**
 * @author yangzhilong
 * @date 6/25/2019
 * / 
Public  class TrimUtils {
     / **
     * trim left and right char to "",chars like tab/chinese space/enter/english space
     * @return
     */
    public static String trimAnyBlank(String str) {
        if(null != str) {
            return CharMatcher.anyOf("\r\n\t \u00A0　").trimFrom(str);
        }
        return str;
    }
}

unit test:

import static org.junit.Assert.assertEquals;

import org.junit.Test;

/**
 * @author yangzhilong
 * @date 6/25/2019
 * / 
Public  class TrimUtilsTest {
    
    @Test
    public  void testTrim () {
         // around each of the spaces in the whole angle 
        String STR = "XFD" ;
         int length = TrimUtils.trimAnyBlank (STR) .length ();
        assertEquals(length, 3);
    }
}