converting string array to string

[Aashish Paruthi]

I need to convert array of strings to string joined by ','(comma).
I have been trying to use
String []vars;
String someString=arrayToString(vars,',');
I get the following error:
cannot resolve symbol

[Balaji Natarajan]

Try this...

  
public class StrArray {
public static void main(String args[]) {
String vars[] = {"balaji","Siva","guru"};
String str = new String();
for(int i=0;i<vars.length;i++) {
if(i>0)
str = str.concat(",");
str = str.concat(vars[i]);
}
System.out.println(str);
}
}

[Aashish Paruthi]

Thanks, but I was trying to use a predefined function in util or array class and it would give me as I mentioned "
cannot resolve symbol" . I wanted to know if the method exists or is it deprecated.
Which classes should I import or should I make it work?

[Joel McNary]

Two things:
1). Remember, any method call without an object becomes a method call to this. So your call to "arrayToString" is looking for that function in the current class.
2). I don't know of any standard Java class that will do what you are asking to do here. A quick search on Google shows that many people have written this method, but I don't see that this is part of SUN's API.

[Aashish Paruthi]

Thanks.
I got some fundamentals straightened out.