import java.util.Random;
/***********************
 * Author:  G. Towell
 * Created: August 28, 2019
 * Modified: August 29, 2019
 * Purpose:
 *    Generic Methods
 ***********************/
public class Genere {

    public static void main(String[] args) {
	Integer[] jj = {1,2,3,4,5,6, 7, 8, 9};  // NOTE AUTOBOXING!!!
	Genere.randomize(jj);
	for (int j : jj)
	    System.out.println(j);
	String[] ss = {"A", "B", "c", "d", "E", "F"};
	Genere.randomize(ss);
	for (String s : ss)
	    System.out.println(s);
    }

    /*****
     * Randomize an array, in place
     * @param data the array to be randomized
     **/
    public static <T> void randomize(T[] data) {
    	Random r = new Random();
    	for (int i=0; i<data.length; i++) {
    		int tgt = r.nextInt(data.length);
    		//swap(data, tgt, i);
    	}
    }
 
    /**
     * Swap to items in an array
     * @param data the array with items to be swapped
     * @param loc1 the location of one item to be swapped
     * @param loc1 the location of the other item to be swapped
     **/
    public static <T> void swap(T[] data, int loc1, int loc2)
    {
	T temp = data[loc1];
	data[loc1] = data[loc2];
	data[loc2] = temp;
    }
    
}