Formatting a string array in java

Use a loop:

for (String s : array) {
    System.out.print(String.format("%s ", s));
}
System.out.println();

you can use

System.out.format("%s". Arrays.toString(your_array));

Java 8:

String formatted = Stream.of(arrayOfStrings)
    .collect(Collectors.joining(",","[","]"));

String formatted = Stream.of(arrayOfSomethingElse)
    .map(Object::toString)
    .collect(Collectors.joining(",","[","]"));