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public class Lottery {

public static void main(String[] args) {
      int[] data1 = {3, 5, 6, 8, 9, 15, 18, 24, 27, 30, 32};
      Random r = new Random();
      int irdm = 0;
      for(int i = 0; i < 7; i ++) {
         irdm = r.nextInt(11 - i);
         System.out.println(data1[irdm]);
         for(int j = irdm; j < 11 - i - 1; j ++) {
            data1[j] = data1[j + 1];
         }
      }
}
}

鏂規(guī)硶娌℃湁紜涓嶇煡閬撴槸鍚﹀彲琛宲ublic class AAAAA {
public static void main(String[] args) {

int i = 0;
int j = 0;
int[] temp = new int[20];
for (j = 0; j < temp.length; j++) {
temp[j] = Math.random() * 100 + 1;
System.out.print(temp[j] + ","

;
}

HashSet hh = new HashSet();
while (hh.size() < 7) {
int aa = (int) (Math.random() * 100 + 1);
hh.add(aa);
}
System.out.println(hh.size());
Iterator ii = hh.iterator();
while (ii.hasNext()) {
System.out.print(ii.next() + ","

;
}
}

}

java浠庢寚瀹氭暟緇勪腑鍙栦笉閲嶅鐨?涓殢鏈烘暟

濡備綍鐢╦ava浠庢寚瀹氭暟緇勪腑鍙栦笉閲嶅鐨?涓殢鏈烘暟錛屼互涓嬫槸鎴戝啓鐨勪唬鐮侊紝浣嗘槸鏄湁閲嶅鐨勶紝鍝綅澶т緺璧愭暀涓€涓嬪浣曚嬌鐢≧andom綾葷殑縐嶅瓙錛屽府鎴戝疄鐜頒笉閲嶅鐨勯殢鏈烘暟銆傘€傘€?br /> import java.util.*;
public class Lottery {

public static void main(String[] args)
{
      int[] data1 = {3,5,6,8,9,15,18,24,27,30,32};
      Random r=new Random();
      StringBuffer str1=new StringBuffer();
      for(int i=0;i<6;i++)
      {
      str1.append(data1[r.nextInt(11)]);
      }
      System.out.println(str1);
}
}