String apple11[] ={};
String apple12[] ={};
String apple13[] ={};
String apple21[] ={};
String apple22[] ={};
String apple23[] ={};
String apple31[] ={};
String apple32[] ={};
String apple33[] ={};
String apple41[] ={};
String apple42[] ={};
String apple43[] ={};如何实现从上面的4组数组中随即从每组中取出一个,然后将取出的4个数组进行去安排列呢?
String apple12[] ={};
String apple13[] ={};
String apple21[] ={};
String apple22[] ={};
String apple23[] ={};
String apple31[] ={};
String apple32[] ={};
String apple33[] ={};
String apple41[] ={};
String apple42[] ={};
String apple43[] ={};如何实现从上面的4组数组中随即从每组中取出一个,然后将取出的4个数组进行去安排列呢?
然后把这些元素丢进一个List里面,然后用Collections.sort(list)即可
String apple12[] ={"b", "2"};
String apple13[] ={"c", "3"};
String apple21[] ={"d", "4"};
String apple22[] ={"e", "5"};
String apple23[] ={"f", "6"};
String apple31[] ={"g", "7"};
String apple32[] ={"h", "8"};
String apple33[] ={"j", "9"};
String apple41[] ={"k", "10"};
String apple42[] ={"l", "11"};
String apple43[] ={"m", "12"};String[][][] all = new String[][][]{
{apple11,apple12,apple13},
{apple21,apple22,apple23},
{apple31,apple32,apple33},
{apple41,apple42,apple43}
};String[][] ranApple = new String[all.length][];
for (int i=0; i<all.length; i++) {
int random = (int)(Math.random()*all[i].length);
ranApple[i] = all[i][random];
System.out.printf("the %d th array of group %d: %s\n", random+1, i+1, Arrays.toString(ranApple[i]));
}System.out.println("parade result");
int[] idx = new int[ranApple.length];
Arrays.fill(idx, 0);
while (true) {
StringBuilder sb = new StringBuilder();
for (int i=0; i<idx.length; i++) {
if (idx[i] < ranApple[i].length) {
sb.append(ranApple[i][idx[i]]);
} else {
sb.append("");
}
if (i < idx.length-1) {
sb.append(",");
}
}
System.out.println(sb.toString()); idx[idx.length-1]++;
for (int i=idx.length-1; i>0; i--) {
if (idx[i] >= ranApple[i].length) {
idx[i] = 0;
idx[i-1]++;
}
}
if (idx[0] >= ranApple[0].length) {break;}
}