CODEWITHSUNDEEP
javaarraysstringsplit
user1193134
user1193134

Reputation: 163

Split-string java return value


I'm looking for a way to realise the following problem.

Starting from a String a I try to return a String[] equals 

new String[]{Q},{ec.Qh},{ec.Q2}

Does anyone have any sugestions?

So far:

    String a="Q={{ec.Qh}{ec.Q2}}";

    int index_first = a.indexOf("="); 
    String name= a.substring(0,index_first); 
    String temp=a.substring(index_first+1, a.length());
    temp=temp.replaceAll("\\{\\{","");
    temp=temp.replaceAll("\\}\\{","\\,");
    temp=temp.replaceAll("\\}\\}","");
    String[] synonyms=temp.split(",");

    //for(int i =0;i<synonyms.length;i++){System.out.println(synonyms[i]);}

    String[] result=new String[]{name,synonyms} // does not work!

Upvotes: 0

Views: 144

Answers (2)

Brian Agnew
Brian Agnew

Reputation: 272297

You could use a StringTokenizer thus:

new StringTokenizer(string, "{}")

Note that the StringTokenizer splits on the nominated characters (} and {) and doesn't return these. You should iterate through the tokenizer results using nextToken() and add the results to a List<String>.

It's useful here because of its simplicity but the documentation notes that StringTokenizer is a legacy class, so you should use with discretion.

Upvotes: 3

Peter Lawrey
Peter Lawrey

Reputation: 533530

You can use

String s = "Q={{ec.Qh}{ec.Q2}}";
String[] parts = s.split("(=\\{\\{|}\\{|}})");
System.out.println(Arrays.toString(parts));

prints

[Q, ec.Qh, ec.Q2]

Upvotes: 2

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