public class Three {
public static void main(String[] args) {
Three obj = new Three();
obj.function(600851475143);
}
private Long function(long i) {
Stack<Long> stack = new Stack<Long>();
for (long j = 2; j <= i; j++) {
if (i % j == 0) {
stack.push(j);
}
}
return stack.pop();
}
}
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运行上面的代码时,它会在行上产生错误obj.function(600851475143);.为什么?
我已经为我的问题取出了不相关的代码,并留下了与我的问题相关的内容.它表明整数太大了.我已将当前时间转换为毫秒,我试图以毫秒为单位添加一个月,两周和一周来实现"过期日期".如果有人知道如何使用Long而不是int?我很困惑,因为我的日期不是作为一个整数被宣布?
它表示'dateExpired = dateExpired + 2628000000;'的错误.
public class VIP implements Serializable {
private Date dateExpired;
public VIP(Date dateExpired) {
this.dateExpired = new Date(Calendar.getInstance().getTimeInMillis());
}
public Date getDateExpired() {
return dateExpired;
}
public void setDateExpired(String ticketType) {
if (ticketType.equals("Gold")) {
dateExpired = dateExpired + 2628000000;
} else if (ticketType.equals("Silver")) {
dateExpired = dateExpired + 1209600000;
} else {
dateExpired = dateExpired + 604800000;
}
}
}
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