Question

Hy everybody,

I need to convert a array of long into an array (1,2,3,4,5)

new String[] {arrayTeste.toString().replace("[","(").replace("]",")")}

is this correct?

Answer 1

Use a StringBuilder and append all array elements to it. It is more efficient than concatenating strings directly.

This is very much like Arrays.toString() does the job, but it does not require to replace the brackets afterwards:

StringBuilder b = new StringBuilder();
b.append("(");

for(int i = 0; i < arrayTeste.length; ++i) {
   if(i != 0)
     b.append(",");

   b.append(arrayTeste[i]);
}
b.append(")");
String s = b.toString();