兩種方法 去除字串中空格製表符換行：

  public String checkString(String str) {
        if (TextUtils.isEmpty(str)) return "";
        int len = str.length();
        int i = 0, j = 0;
        char[] strChar = str.toCharArray();
        for (; i < len; i++) {
            if (' ' == strChar[i] || '\t' == strChar[i] || '\n'
 
 == strChar[i])
                continue;
            if (i != j) strChar[j] = strChar[i];
            j++;
        }
        //strChar[j] = 0;//C/C++中0是結束標誌位需要新增該語句，Java中會越界，需要註釋該句；
        return new String(Arrays.copyOf(strChar, j));
    }

利用正則表示式

public static String replaceBlank(String src) {
        String dest = ""
 
;
        if (src != null) {
            Pattern pattern = Pattern.compile("\t|\r|\n|\\s*");
            Matcher matcher = pattern.matcher(src);
            dest = matcher.replaceAll("");
        }
        return dest;
    }

補充兩種去除的演算法

//2.1 Delete
    int k = 0;
    int i = 0;
    while (i < NowListSize)
    {
        if
 
 (NowListFlag[i] == 0)
        {
            NowList[i]->deleteIcon();
        }
        else
        {
            NowList[k++] = NowList[i];
        }
        i++;
    }
    NowListSize = k;

或者

    int pos = 0;
    for (int j = 0; j < NowListSize; j++)
    {
        if (NowListFlag[j + pos] == 0)
        {
            NowList[j + pos]->deleteIcon();
            pos++;
            NowListSize--;
            j--;
            continue;
        }
        NowList[j] = NowList[j + pos];
    }