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Assignment in an if statement
...the if statement, but isn't definitely assigned.
No, there isn't. It's more idiomatic to write this though:
Dog dog = animal as Dog;
if (dog != null)
{
// Use dog
}
Given that "as followed by if" is almost always used this way, it might make more sense for there to be an operator which per...
JUnit tests pass in Eclipse but fail in Maven Surefire
...ing Maven (during the build process), they fail giving a spring related error. I am not sure what is causing the problem, JUnit, Surefire or Spring. Here is my test code, spring configuration and the exception that I get from Maven:
...
How to read XML using XPath in Java
I want to read XML data using XPath in Java, so for the information I have gathered I am not able to parse XML according to my requirement.
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What is the purpose of python's inner classes?
... keep the two together. Nesting such "helper classes" makes their package more streamlined.
Increased encapsulation: Consider two top-level classes A and B where B needs access to members of A that would otherwise be declared private. By hiding class B within class A A's members can be declared pr...
Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)
... Usage > mobile data
Note that I have to have mobile data turned on PRIOR to sending an MMS OR receiving one. If I receive an MMS with mobile data turned off, I will get the notification of a new message and I will receive the message with a download button. But if I do not have mobile data on p...
Change MySQL default character set to UTF-8 in my.cnf?
...f8'
character-set-server = utf8
If you want to change the character set for an existing DB, let me know... your question didn't specify it directly so I am not sure if that's what you want to do.
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Can “using” with more than one resource cause a resource leak?
...
No.
The compiler will generate a separate finally block for each variable.
The spec (§8.13) says:
When a resource-acquisition takes the form of a
local-variable-declaration, it is possible to acquire multiple
resources of a given type. A using statement of the form
using...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...pp上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 搜索 MQ...
How to present a simple alert message in java?
...n this java desktop app, I just want to alert a message saying "thank you for using java" I have to go through this much suffering:
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Explain how finding cycle start node in cycle linked list work?
I understand that Tortoise and Hare's meeting concludes the existence of loop, but how does moving tortoise to beginning of linked list while keeping the hare at meeting place, followed by moving both one step at a time make them meet at starting point of cycle?
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