How to use generics to create a method that sorts an array using the "bubble" method?

Question

Java

How to correctly describe a method that sorts an array of numeric data (double, int, etc.) using Generic?
Tried to do something like this:

public <Type extends Number> static void BubbleSort(Type array[]) { 
        for (int i = array.length - 1; i >= 0; i--)
            for (int j = 0; j < i; j++)
                if (array[j] > array[j+1]) { 
                    array[j] = array[j] - array[j+1]; 
                    array[j+1] = array[j+1] + array[j]; 
                    array[j] = array[j+1] - array[j]; 
                }
    }

To get the value of the array[i] variable, I must write array[i].intValue() or array[i].doubleValue(), etc., but I want to sort an array of any numeric data and it is not known in advance which type is fed into method.

Answer 1

And why do you need to do intValue? If your generalization has comparison operators, then it doesn't matter what the value is - let it compare itself.

Answer 2

Implemented like this:

public static <Type extends Comparable<Type>> void BubbleSort(Type array[]) { 
        Type temp;
        for (int i = array.length - 1; i >= 0; i--)
            for (int j = 0; j < i; j++)
                if (array[j].compareTo(array[j+1]) > 0) {
                    temp = array[j];
                    array[j] = array[j+1];
                    array[j+1] = temp;
                }
    }