[技術文]真正的樂透系統寫法

String sNum = "", pNum = "";
//系統數字
while(sNum.split(",").length < 5){
int sk = 1 + (int) (Math.random() * 46);
if(sNum.indexOf(sk + ",") < 0)
sNum += String.valueOf(sk) + ",";
}
//玩家數字
while(pNum.split(",").length < 5){
int pk = 1 + (int) (Math.random() * 46);
if(pNum.indexOf(pk + ",") < 0)
pNum += String.valueOf(pk) + ",";
}
int ch = 0;
for(int i=0; i<sNum.split(",").length;i++) {
String pk[] = pNum.split(",");
if((","+sNum).indexOf(","+pk[ i ]+",") >= 0)
ch++;
}
System.out.println(sNum);
System.out.println(pNum);
System.out.println("**********************你對中了" + ch + "個號碼!");

Microsoft Windows XP [版本 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\\Documents and Settings\\Administrator>cd..

C:\\Documents and Settings>cd..

C:\\>java Test
26,25,21,31,43,
25,13,30,46,41,
**********************你對中了1個號碼!
26,42,44,30,34,
42,13,20,44,21,
**********************你對中了2個號碼!
17,27,34,29,18,
41,8,36,44,32,
**********************你對中了0個號碼!
44,28,34,46,2,
31,32,33,18,46,
**********************你對中了1個號碼!
41,2,43,37,19,
19,6,46,44,23,
**********************你對中了1個號碼!
43,18,11,36,40,
8,38,42,22,35,
**********************你對中了0個號碼!
42,43,6,46,20,
45,4,27,30,8,
**********************你對中了0個號碼!
22,32,12,25,44,
19,25,36,7,18,
**********************你對中了1個號碼!
3,14,24,30,28,
20,17,30,32,37,
**********************你對中了1個號碼!
24,45,27,28,29,
7,46,14,38,12,
**********************你對中了0個號碼!

C:\\>

if (k == 40787){
//獎品
int itemId1 = 40308; //-----------金幣
int itemId2 = 40733; //-----------1億代幣，請自己設定
int itemId3 = 40734; //-----------5億代幣，請自己設定
int itemId4 = 40735; //----------10億代幣，請自己設定
int itemId5 = 40736; //---------500萬代幣，請自己設定

// TODO Auto-generated method stub
String sNum = "", pNum = "";
//系統數字
while(sNum.split(",").length < 6){
int sk = 1 + (int) (Math.random() * 49);
if(sNum.indexOf(sk + ",") < 0)
sNum += String.valueOf(sk) + ",";
}
//玩家數字
while(pNum.split(",").length < 6){
int pk = 1 + (int) (Math.random() * 49);
if(pNum.indexOf(pk + ",") < 0)
pNum += String.valueOf(pk) + ",";
}
int ch = 0;
int iloop = sNum.split(",").length;
String pk[] = pNum.split(",");
for(int a=0; a<sNum.split(",").length;a++) {
if((","+sNum).indexOf(","+pk[a]+",") >= 0)
ch++;
}
l1pcinstance.sendPackets(new S_SystemMessage(sNum));
l1pcinstance.sendPackets(new S_SystemMessage(pNum));
l1pcinstance.sendPackets(new S_SystemMessage("對中了" + ch + "個號碼!"));
l1pcinstance.getInventory().removeItem(l1iteminstance,1);

switch(ch)
{

case 3:
l1pcinstance.sendPackets(new S_SystemMessage("您中了普獎!! "));
L1ItemInstance item = l1pcinstance.getInventory().storeItem(itemId5, 2); //----1千萬
l1pcinstance.sendPackets(new S_SkillSound(j, 2011));
l1pcinstance.broadcastPacket(new S_SkillSound(j, 2011));
break;
case 4:
l1pcinstance.sendPackets(new S_SystemMessage("您中了参獎!! "));
L1ItemInstance item1 = l1pcinstance.getInventory().storeItem(itemId3, 2); //-----10億
l1pcinstance.sendPackets(new S_SkillSound(j, 2011));
l1pcinstance.broadcastPacket(new S_SkillSound(j, 2011));
break;
case 5:
l1pcinstance.sendPackets(new S_SystemMessage("您中了貳獎!! "));
L1ItemInstance item2 = l1pcinstance.getInventory().storeItem(itemId4, 10); //----100億
l1pcinstance.sendPackets(new S_SkillSound(j, 2020));
l1pcinstance.broadcastPacket(new S_SkillSound(j, 2020));
break;
case 6:
l1pcinstance.sendPackets(new S_SystemMessage("您中了頭獎!! "));
L1ItemInstance item3 = l1pcinstance.getInventory().storeItem(itemId4, 50); //---500億
l1pcinstance.sendPackets(new S_SkillSound(j, 2047));
l1pcinstance.broadcastPacket(new S_SkillSound(j, 2047));
break;
default:
l1pcinstance.sendPackets(new S_SystemMessage("您槓龜了!! "));
break;
}
} else