String convertion in Java mit eingebauter String-Funktion

Question

Wie konvertiere ich eine Zeichenfolge wie unten

String str="[in,us,eu,af,th]"; 

in

["in","us","eu","af","th"] 

Answer 1

String result = str.replace("[", "[\"").replace(",", "\",\"").replace("]", "\"]"); 

Answer 2

Nur String-Funktionen verwenden:

str = str.substring(1,str.length()-2); // remove brackets 
String a[] = str.split(","); //split it. 

Answer 3

public static void main(String[] args) { 
    String str = "[in,us,eu,af,th]"; 

    str = str.substring(1, str.length() - 1); 

    // #1 remove starting and ending brackets 
    System.out.println("String without brackets : " + str); 

    //#2 split by comma 
    String[] stringTokens = str.split(","); 
    StringBuffer outputStrBuffer = new StringBuffer(); 

    outputStrBuffer.append("["); // append starting square bracket 

    for (int i = 0; i <= stringTokens.length - 1; i++) { 
     //prefix and postfix each token with double quote 
     outputStrBuffer.append("\""); 
     outputStrBuffer.append(stringTokens[i]); 
     outputStrBuffer.append("\""); 

     // for last toke dont append comma at end 
     if (i != stringTokens.length - 1) { 
      outputStrBuffer.append(","); 
     } 
    } 
    outputStrBuffer.append("]"); // append ending square bracket 

    System.out.println("String prefixed & postfixed with double quotes, separated by comma : " + outputStrBuffer.toString()); 
}