Java print array of integers joined by spaces

One solution is to iterate over the array and print the desired string. Another solution is just using substring as following:

String result = Arrays.toString(arr);
System.out.println(" "+result.substring(1, result.length()-1));

By iterating also you can get this result as following:

for (int i=0;i    System.out.print(arr[i] + " ");
}

Or using regex, you can replace first and last characters as following:

System.out.println(" " + Arrays.toString(arr).replaceAll("^.|.$", ""));

You can also use StringUtils(commons-lang) which is null safe:

StringUtils.substringBetween(Arrays.toString(arr), "[", "]");