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How do I convert a String to an InputStream in Java?
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Doesn't this charset get lost when doing: String --> bytes --> ByteArrayInputStream ? When trying this on a for example "ü", the bytes will have the right letter, but the ByteArrayInputStream will have lost the right c...
How can I check for an empty/undefined/null string in JavaScript?
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If you just want to check whether there's any value, you can do
if (strValue) {
//do something
}
If you need to check specifically for an empty string over null, I would think checking against "" is your best bet, using the === operator (so that you know that it is, in fact, a ...
What does mvn install in maven exactly do
I just started using Maven and I was told to do mvn install in a specific directory.
7 Answers
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Iterate through a HashMap [duplicate]
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@karim79 what do you think about the following way: Map<Integer, Integer> map = new HashMap<Integer, Integer>(); for (Map.Entry<Integer, Integer> entry : map.entrySet()) { System.out.println("Key = " + entry.getKey() ...
Deleting Files using Git/GitHub
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I think this would be a simpler way to do what you want:
git add . -A
Then you would just do:
git commit -m "removed some files"
As noted above.
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im...
How to get the client IP address in PHP [duplicate]
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Whatever you do, make sure not to trust data sent from the client. $_SERVER['REMOTE_ADDR'] contains the real IP address of the connecting party. That is the most reliable value you can find.
However, they can be behind a proxy server in...
Why is char[] preferred over String for passwords?
...on kicks in.
With an array, you can explicitly wipe the data after you're done with it. You can overwrite the array with anything you like, and the password won't be present anywhere in the system, even before garbage collection.
So yes, this is a security concern - but even using char[] only redu...
How to test code dependent on environment variables using JUnit?
...est this code with different values of the environment variable. How can I do this in JUnit?
13 Answers
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Creating runnable JAR with Gradle
...ight also need to add classpath entries in the manifest, but that would be done the same way.
See http://docs.oracle.com/javase/tutorial/deployment/jar/manifestindex.html
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Why do we declare Loggers static final?
...red Jul 11 '11 at 16:50
Andrzej DoyleAndrzej Doyle
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