排序算法类模板

import java.util.Scanner;/** * Created by 1 on 2017/4/10. *排序算法类的模板 */public abstract class SortExample {    public static void sort(Comparable[] a){        //排序算法实现    }    public static boolean less(Comparable v, Comparable w){        //对元素进行比较        return v.compareTo(w)<0;    }    public static void exch(Comparable[] a,int i,int j){        //交换元素        Comparable t=a[i];        a[i]=a[j];        a[j]=t;    }    public static void show(Comparable[] a){        //在单行中打印数组        for(int i=0;i<a.length;i++){            System.out.print(a[i]+"");            System.out.println();        }    }    public static boolean isSorted(Comparable[] a){        //测试数组元素是否有序        for(int i=0;i<a.length;i++){            if(less(a[i],a[i-1])){                return false;            }        }        return true;    }    public static  void main(String[] args){        Scanner scanner=new Scanner(System.in);        while (scanner.hasNext()){            String line=scanner.nextLine();            String[] a=line.split(" ");            sort(a);            assert isSorted(a);            show(a);        }    }}