?一.獲得控制臺(tái)用戶輸入的信息

? public ?String?getInputMessage()? throws ?IOException {
???????System.out.println( " 請(qǐng)輸入您的命令∶ " );
???????? byte ?buffer[] = new ? byte [ 1024 ];
???????? int ?count = System.in.read(buffer);
???????? char []?ch = new ? char [count - 2 ]; // 最后兩位為結(jié)束符，刪去不要
???????? for ( int ?i = 0 ;i < count - 2 ;i ++ )
????????????ch[i] = ( char )buffer[i];
????????String?str = new ?String(ch);
???????? return ?str;
????}

二.字符串?dāng)?shù)組排序
/**?*/ /** 對(duì)字符串?dāng)?shù)組進(jìn)行排序
?????*? @param ?str?原始字符串?dāng)?shù)組
?????*? @param ?flag?flag=0:順序排序??flag=1:倒序排序
?????*? @return ?排序后的字符串?dāng)?shù)組
????? */
???? public ?String[]?sort(String[]?str, int ?flag) ... {
???????? if (str == null || str.length == 0 )
???????????? throw ? new ?IllegalArgumentException();
????????String?temp = str[ 0 ];
???????? // 順序排列?,即從小到大
???????? if (flag == 0 ) ... {
???????????? for ( int ?i = 0 ;i < str.length - 1 ;i ++ ) ... {
???????????????? for ( int ?j = i + 1 ;j < str.length;j ++ ) ... {
???????????????????? if (str[i].compareTo(str[j]) > 0 ) ... {
????????????????????????temp = str[i];
????????????????????????str[i] = str[j];
????????????????????????str[j] = temp;
????????????????????}
????????????????}
????????????}
????????}
???????? else ? if (flag == 1 ) ... { // 倒序排列
???????????? for ( int ?i = 0 ;i < str.length - 1 ;i ++ ) ... {
???????????????? for ( int ?j = i + 1 ;j < str.length;j ++ ) ... {
???????????????????? if (str[i].compareTo(str[j]) < 0 ) ... {
????????????????????????temp = str[i];
????????????????????????str[i] = str[j];
????????????????????????str[j] = temp;
????????????????????}
????????????????}
????????????}
????????}
???????? return ?str;
????}

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