大约有 35,470 项符合查询结果（耗时：0.0553秒） [XML]
How to properly seed random number generator
...{
rand.Seed(time.Now().UTC().UnixNano())
fmt.Println(randomString(10))
}
func randomString(l int) string {
bytes := make([]byte, l)
for i := 0; i < l; i++ {
bytes[i] = byte(randInt(65, 90))
}
return string(bytes)
}
func randInt(min int, max int) int {
return ...
How to set a Timer in Java?
... @Override
public void run() {
// Your database code here
}
}, 2*60*1000);
// Since Java-8
timer.schedule(() -> /* your database code here */, 2*60*1000);
To have the task repeat after the duration you would do:
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run...
AngularJS - how to get an ngRepeat filtered result reference
...
answered Jul 30 '12 at 13:12
Andrew JoslinAndrew Joslin
42.7k2020 gold badges9696 silver badges7575 bronze badges
...
Find the Smallest Integer Not in a List
...
120
If the datastructure can be mutated in place and supports random access then you can do it in O(...
How to overlay one div over another div
...
#container {
width: 100px;
height: 100px;
position: relative;
}
#navi,
#infoi {
width: 100%;
height: 100%;
position: absolute;
top: 0;
left: 0;
}
#infoi {
z-index: 10;
}
<div id="container">
<div id="nav...
In which case do you use the JPA @JoinTable annotation?
...
EDIT 2017-04-29: As pointed to by some of the commenters, the JoinTable example does not need the mappedBy annotation attribute. In fact, recent versions of Hibernate refuse to start up by printing the following error:
org.hiberna...
What's the difference between returning void and returning a Task?
...ippert
599k164164 gold badges11551155 silver badges20142014 bronze badges
7
...
Formatting Decimal places in R
I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to screen (or written to a file). How does one do that?
...
In C#, can a class inherit from another class and an interface?
...
edited Dec 19 '13 at 23:10
Zain Rizvi
20.7k1717 gold badges7878 silver badges119119 bronze badges
answe...