Bubble Sort in Java

import java.util.Scanner;

public class BubbleSort {

    private static void swap(Comparable[] a, int i, int j) {
        Comparable t = a[i];
        a[i] = a[j];
        a[j] = t;
    }

    private static boolean checkMin(Comparable v, Comparable w) {
        return v.compareTo(w) < 0;
    }

    private static void display(Comparable[] a) {
        for (int i = 0; i < a.length; i++) {
            System.out.print(a[i] + "\t");
        }
    }

    private static void BubbleSort(Comparable[] a) {
        int n = a.length;
        boolean sorted = false;
        while (!sorted) {
            sorted = true;
            for (int i = 0; i < n - 1; i++) {
                if (checkMin(i, i+1)) {
                    swap(a,i+1,i);
                    sorted = false;
                }
            }
            n--;
        }
    }

    public static void main(String[] args) {
        String a;String[] b;
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter the data to be sorted seperated by space :-");
        a = sc.nextLine();

        System.out.println("\nSort using Bubble Sort");
        b = a.trim().split(" ");
        BubbleSort(b);
        display(b);
    }
}