java字符串String a = "12345,56789"; 怎么转换成 String a =" '12345','56789' &q

java字符串String a = "12345,56789"; 怎么转换成 String a =" '12345','56789' ";

用这个肯定可以，你的几个case都包含在里面了

public class Baidu {

public static void main(String[] args) {

String str1 = "12345,56789";
String str2 = "12344556";
String str3 = "12345,56789,123333";

splieStringWithSeparator(str1);
splieStringWithSeparator(str2);
splieStringWithSeparator(str3);

}

private static String splieStringWithSeparator(String a) {
String[] arys = a.split(",");

StringBuffer sb = new StringBuffer();

for (String str : arys) {
sb.append("'");
sb.append(str);
sb.append("',");
}

String str = sb.toString();
str = str.substring(0, str.length() - 1);

System.out.println(a + " after spliting -> " + str);

return str;
}
}

-----------testing
12345,56789 after spliting -> '12345','56789'
12344556 after spliting -> '12344556'
12345,56789,123333 after spliting -> '12345','56789','123333'

抱歉！这个问题不懂哦，请再加油吧！

String[] str = a.split(",");
str[0] = "12345";
str[1] = "56789" ;

用split并不好的。因为转化的结果是一个字符串，并不是一个字符串数组。
String a = "12345,56789";
String b =" '12345','56789' ";
a="'"+a.replaceAll(",", "','")+"'";
System.out.println(a);
System.out.println("\r\n");
System.out.println(b);
用replaceAll比较好一些，就是有多个逗号也是可以的。

抱歉！这个问题不懂哦，请再加油吧！

不用分割数组，两句话搞定：
a.replace(",", "','");
a = "'" + a + "'";
打印一下a就知道了。

String[] strs = a.split(",");