Sort an ArrayList of Strings that are numbers

Question

What is the fastest way to sort an ArrayList (in descending/ascending manner) that contains numbers, eg: { \"12\", \"3.5\", \"188\", \"33.03

Answer 1

Try following code:

String test[] = {"12", "3.5", "188", "33.03"};
double numbers[] = new double[test.length];
for (int i = 0; i < test.length; i++) {
     numbers[i] = Double.parseDouble(test[i]);
}
Arrays.sort(numbers);
for (double i : numbers) {
     System.out.println(i);
}

Output :

3.5
12.0
33.03
188.0