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Solving a “communications link failure” with JDBC and MySQL [duplicate]
...number
interactive_timeout = number
connect_timeout = number
Make sure Java isn't translating 'localhost' to [:::1] instead of [127.0.0.1]
Since MySQL recognizes 127.0.0.1 (IPv4) but not :::1 (IPv6)
This could be avoided by using one of two approaches:
Option #1: In the connection string us...
Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
...
In Java 8 there is another solution available by using java.util.Optional and the ifPresent-method.
Optional.ofNullable(list1).ifPresent(l -> l.forEach(item -> {/* do stuff */}));
So, not a solution for the exact proble...
What is an xs:NCName type and when should it be used?
... How can I convert that expression to a programming language like Java or JS?
– calbertts
May 4 '16 at 20:14
...
Difference between web reference and service reference?
...posters indicate that it is only ASMX, but Web References can also talk to Java-based Web Services or Python-based or Ruby so long as they all talk WSDL and conform to the WS-I interoperability standard).
A Service Reference will create a client proxy class that communicates with a WCF-based servic...
How to sort a List alphabetically using Object name field
...Name().compareTo(object2.getName());
}
});
}
Or if you are using Java 1.8
list
.stream()
.sorted((object1, object2) -> object1.getName().compareTo(object2.getName()));
One final comment -- there's no point in checking the list size. Sort will work on an empty list.
...
How to avoid type safety warnings with Hibernate HQL results?
...ngs for unavoidable problems
In Eclipse, go to Window>Preferences>Java>Compiler>Errors/Warnings and under Generic type, select the checkbox
Ignore unavoidable generic type problems due to raw APIs
This will turn off unnecessary warnings for similar problems like the one described ab...
How to send PUT, DELETE HTTP request in HttpURLConnection?
... know if it is possible to send PUT, DELETE request (practically) through java.net.HttpURLConnection to HTTP-based URL.
9...
How to wait for several Futures?
....onFailure{case i => println(i)}
// this waits one second, then prints "java.lang.ArithmeticException: / by zero"
// the first to fail in traversal order
And:
val f1 = Future { Thread.sleep(1000) ; 5 / 0 }
val f2 = Future { 5 }
val f3 = Future { None.get }
sequenceOrBailOut(List(f1,f2,f3)).on...
How to clear the cache in NetBeans
... following text:
Product Version: NetBeans IDE 8.0.2 (Build 201411181905)
Java: 1.7.0_80; Java HotSpot(TM) 64-Bit Server VM 24.80-b11
Runtime: Java(TM) SE Runtime Environment 1.7.0_80-b15
System: Windows 7 version 6.1 running on amd64; Cp1252; en_CA (nb)
User directory: C:\Users\Username\AppData\Ro...
Hidden Features of MySQL
...LL |
| 5 | system user | | NULL | Connect | 98 | Waiting for master to send event | NULL |
| 6 | system user | | NULL | Connect | 5018 | Reading event from the relay log | NULL |
+-----+------+-----------+---------+---------+---...