java二维数组排序_java 二维数组排序

 /* return -1 if a is before b
     * 1 if a is after b
     * 0 if a equals b */
    public static int compareArray(String a[], String b[]) 
    {
        if(Integer.parseInt(a[1]) < Integer.parseInt(b[1])) return 1;
        else if(Integer.parseInt(a[1]) > Integer.parseInt(b[1])) return -1;
        return 0;
    }
 
    // given two row indices, swap two rows in the matrix
    public static void swap(String[][] list, int a, int b) 
    {
        String[] alist = list[a].clone();
        for(int i=0; i < list[b].length; i++) 
        {
            list[a][i] = list[b][i];
        }
        for(int i=0; i < alist.length; i++) 
        {
            list[b][i] = alist[i];
        }
    }
    /**
     * 
     * sort:排序印象
     *
     * @param list
     * @return    
     * @since  翔龙飞天注释模板1.0
     */
    public static String[][] sort(String[][] list) 
    {
        int len = list.length;
        int min, comp;
        for(int i=0; i < len; i++)
        {
            min = i;
            for(int j=i+1; j < len; j++) 
            {
                comp = compareArray(list[min], list[j]);
                if(comp == 1) min = j;
            }
            swap(list, i, min);
        }
        return list;
    }