Print array without brackets and commas

Solution 1:

Replace the brackets and commas with empty space.

String formattedString = myArrayList.toString()
    .replace(",", "")  //remove the commas
    .replace("[", "")  //remove the right bracket
    .replace("]", "")  //remove the left bracket
    .trim();           //remove trailing spaces from partially initialized arrays

Solution 2:

Basically, don't use ArrayList.toString() - build the string up for yourself. For example:

StringBuilder builder = new StringBuilder();
for (String value : publicArray) {
    builder.append(value);
}
String text = builder.toString();

(Personally I wouldn't call the variable publicArray when it's not actually an array, by the way.)

Solution 3:

You can use join method from android.text.TextUtils class like:

TextUtils.join("",array);

Solution 4:

first

StringUtils.join(array, "");

second

Arrays.asList(arr).toString().substring(1).replaceFirst("]", "").replace(", ", "")

EDIT

probably the best one: Arrays.toString(arr)

Solution 5:

With Java 8 or newer, you can use String.join, which provides the same functionality:

Returns a new String composed of copies of the CharSequence elements joined together with a copy of the specified delimiter

String[] array = new String[] { "a", "n", "d", "r", "o", "i", "d" };
String joined = String.join("", array); //returns "android"

With an array of a different type, one should convert it to a String array or to a char sequence Iterable:

int[] numbers = { 1, 2, 3, 4, 5, 6, 7 };

//both of the following return "1234567"
String joinedNumbers = String.join("",
        Arrays.stream(numbers).mapToObj(String::valueOf).toArray(n -> new String[n]));
String joinedNumbers2 = String.join("",
        Arrays.stream(numbers).mapToObj(String::valueOf).collect(Collectors.toList()));

The first argument to String.join is the delimiter, and can be changed accordingly.