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How to create a self-signed certificate with OpenSSL
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You can do that in one command:
openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365
You can also add -nodes (short for no DES) if you don't want to protect your private key with a passphrase. Otherwise it will prompt you for "at least a 4 characte...
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...
“Instantiating” a List in Java? [duplicate]
...ayList<T>();
This is in contrast with .NET, where, since version 2.0, List<T> is the default implementation of the IList<T> interface.
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Find the Smallest Integer Not in a List
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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
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#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...
Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)
... Mateng
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answered Nov 10 '11 at 19:08
marimafmarimaf
4,89133 gold bad...
Should I use @EJB or @Inject
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Nov 15 '11 at 15:08
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In C#, can a class inherit from another class and an interface?
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edited Dec 19 '13 at 23:10
Zain Rizvi
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answe...
dd: How to calculate optimal blocksize? [closed]
...ters... :( )
– Tom
Dec 9 '15 at 17:10
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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...ed with 3 bytes in UTF-8. Here you have a character that needs 4 bytes: \xF0\x90\x8D\x83 (U+10343 GOTHIC LETTER SAUIL).
If you have MySQL 5.5 or later you can change the column encoding from utf8 to utf8mb4. This encoding allows storage of characters that occupy 4 bytes in UTF-8.
You may also have...