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Java null check why use == instead of .equals()
In Java I am told that when doing a null check one should use == instead of .equals(). What are the reasons for this?
16 An...
How do I programmatically change file permissions?
In Java, I'm dynamically creating a set of files and I'd like to change the file permissions on these files on a linux/unix file system. I'd like to be able to execute the Java equivalent of chmod . Is that possible Java 5? If so, how?
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Why does this Java code compile?
... reasons for the errors are also different.
Fields
Field initializers in Java are governed by JLS §8.3.2, Initialization of Fields.
The scope of a field is defined in JLS §6.3, Scope of a Declaration.
Relevant rules are:
The scope of a declaration of a member m declared in or inherited by a ...
Eclipse comment/uncomment shortcut?
...t so far I haven't found solutions for comment/uncomment shortcut on both Java class editor and jsf faceted webapp XHTML file editor :
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Python requests - print entire http request (raw)?
...: *
Access-Control-Allow-Credentials: true
<!DOCTYPE html>
<html lang="en">
...
</html>
You may want to change res.text to res.content if the response is binary.
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Trusting all certificates with okHttp
...stManager() {
@Override
public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType)...
How can you speed up Eclipse?
...Kepler SR2 (4.3.2) in 7 seconds and in Luna (4.4.0) in 10 seconds. All are Java EE bundles. Newer versions have more bundled plugins, but still the trend is obvious. (by "same" workspace I mean: same (additionally installed) plugins used, same projects checked out from version control).
Launching ...
What is the difference between Collection and List in Java?
What is the difference between Collection and List in Java? When should I use which?
7 Answers
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object==null or null==object?
...tion of putting the constant on the left side of == isn't really useful in Java since Java requires that the expression in an if evaluate to a boolean value, so unless the constant is a boolean, you'd get a compilation error either way you put the arguments. (and if it is a boolean, you shouldn't be...
How do you automate Javascript minification for your Java web applications?
I'm interested in hearing how you prefer to automate Javascript minification for your Java web apps. Here are a few aspects I'm particularly interested in:
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