How can I verify that an array of strings contain a certain string? [duplicate]

manpreet Best Answer 2 years ago

_x000D_ Convert the array of valid directions to a list: List valid = Arrays.asList(directions) Or just declare it directly as: List valid = Arrays.asList("UP", "DOWN", "RIGHT", "LEFT", "up", "down", "right", "left") You can then use the contains method: if (valid.contains(input)) { // is valid } else { // not valid } Note that this won't match a mixed case input such as "Up" so you might want to store just the uppercase values in the list and then use valid.contains(input.toUpperCase())