Question

final String json = "\"name\" : \"john\" , \"worth\" : \"123,456\"";    
String[] ss = json.split("\"\\s*,\\s*\"");
System.out.println(json);
for (String s : ss) {
    System.out.println("--> " + s);
}

The output is

"name" : "john" , "worth" : "123,456"
--> "name" : "john
--> worth" : "123,456"

Is there any way I can get

"name" : "john" , "worth" : "123,456"
--> "name" : "john"
--> "worth" : "123,456"

Answer 1

Using Regex

While I must agree that using a JSON parser makes a lot more sense, even if you want to use regex, String.split() is not the right tool. Use a Pattern and a Matcher:

final String json = "\"name\" : \"john\" , \"worth\" : \"123,456\"";
final Pattern pattern =
    Pattern.compile("\"(.*?)\"\\s*:\\s*\"(.*?)\"", Pattern.DOTALL);
final Matcher matcher = pattern.matcher(json);
while(matcher.find()){
    System.out.println(matcher.group(1) + ":" + matcher.group(2));
}

Output:

name:john
worth:123,456

And if you really want to retrieve the quotes, change the pattern to

final Pattern pattern =
    Pattern.compile("(\".*?\")\\s*:\\s*(\".*?\")", Pattern.DOTALL);

Output:

"name":"john"
"worth":"123,456"

Of course this won’t help with different JSON structures like nested object structures, arrays, primitives etc.

---

Using JSON parsers

But if your question is just about how to do this with JSON parsers, here is an example using JSONObject:

final String json = "{\"name\" : \"john\" , \"worth\" : \"123,456\"}";
final JSONObject jsonObject = new JSONObject(json);
@SuppressWarnings("unchecked")
final Iterator<String> it = jsonObject.keys();
while(it.hasNext()){
    final String nextKey = it.next();
    System.out.println(nextKey + ":" + jsonObject.getString(nextKey));
}

No classes needed. Output:

name:john
worth:123,456