strip string from Start - Android java.lang

Android examples for java.lang:String Strip

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Description

strip string from Start

Demo Code

import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.security.SecureRandom;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Locale;

public class Main{

    /**/*from w  ww. j a  va2  s  . c o m*/
     * 
     * <pre>
     * StringUtil.stripStart(null, *)          = null
     * StringUtil.stripStart("", *)            = ""
     * StringUtil.stripStart("abc", "")        = "abc"
     * StringUtil.stripStart("abc", null)      = "abc"
     * StringUtil.stripStart("  abc", null)    = "abc"
     * StringUtil.stripStart("abc  ", null)    = "abc  "
     * StringUtil.stripStart(" abc ", null)    = "abc "
     * StringUtil.stripStart("yxabc  ", "xyz") = "abc  "
     * </pre>
     */
    public static String stripStart(String str, String stripChars) {
        int strLen;
        if (str == null || (strLen = str.length()) == 0) {
            return str;
        }
        int start = 0;
        if (stripChars == null) {
            while ((start != strLen)
                    && Character.isWhitespace(str.charAt(start))) {
                start++;
            }
        } else if (stripChars.length() == 0) {
            return str;
        } else {
            while ((start != strLen)
                    && (stripChars.indexOf(str.charAt(start)) != -1)) {
                start++;
            }
        }

        return str.substring(start);
    }

}

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