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LottoMachine.java
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LottoMachine.java
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package myproject_modification;
import java.time.LocalDate;
import java.util.HashSet;
import java.util.Random;
import java.util.TreeSet;
public class LottoMachine implements LottoTool{
private int lottoNumber;
public void setLottoState(LottoEnum state){
switch(state){
case BIGLOTTO:
lottoNumber = 49;
chooseNumber();
openNumber();
judgment();
createTime();
break;
case POWERLOTTO:
lottoNumber = 38;
chooseNumber();
openNumber();
judgment();
createTime();
break;
case TODAYLOTTO:
lottoNumber = 39;
chooseNumber();
openNumber();
judgment();
createTime();
break;
}
}
//------------------------------------------
HashSet<Integer> hashSet;
TreeSet<Integer> treeSet;
@Override
public void chooseNumber(){
hashSet = new HashSet<>();
while(hashSet.size() < 6){
int temp = new Random().nextInt(lottoNumber)+1;
hashSet.add(temp);
//System.out.printf("加入 %d 是否成功:%b%n", temp,hashSet.add(temp));
}
System.out.println("下注號碼:" + hashSet);
System.out.println("--------------------------------");
}
@Override
public void openNumber(){
treeSet = new TreeSet<>();
while(treeSet.size() < 6){
treeSet.add(new Random().nextInt(lottoNumber)+1);
}
System.out.println("開獎號碼:" + treeSet);
System.out.println("--------------------------------");
}
@Override
public void judgment(){
int count = 0;
String msg = "";
for(int i : hashSet){
if(treeSet.contains(i)){
count++;
msg = msg + i + " ";
}
}
System.out.printf("中獎號碼:%s,共 %d 個%n", msg, count);
}
@Override
public void createTime(){
LocalDate date = LocalDate.now();
System.out.println("建立時間:" + date);
}
}