Concatenating elements in an array to a string

Question

I\'m confused a bit. I couldn\'t find the answer anywhere ;(

I\'ve got an String array:

String[] arr = [\"1\", \"2\", \"3\"];

then

Answer 1

This is a little code of convert string array to string without [ or ] or ,

String[] strArray = new String[]{"Java", "String", "Array", "To", "String", "Example"};

String str = Arrays.toString(strArray);
            str = str.substring(1, str.length()-1).replaceAll(",", "");

• First convert array to string.
• Second get text from x to y position.
• third replace all ',' with ""