get closest value to a number in array

Question

I have an array of positive/negative ints

int[] numbers = new int[10];
numbers[0] = 100;
numbers[1] = -34200;
numbers[2] = 3040;
numbers[3] = 400433;
numbers         


        

Answer 1

int valueToFind = 490;

Map map = new HashMap();

for (int i = 0, i < numbers.length; i++){
    map.put(Math.abs(numbers[i] - valueToFind), numbers[i]);
}

List keys = new ArrayList(map.keySet());
Collections.sort(keys);

return map.get(keys.get(0));