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Disable IntelliJ Starred (Package) Imports?
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In IDEA 14+ the sequence is:
Settings > Editor > Code Style > Java > Imports > Class count to use import with '*'
In older version of IDEA:
Settings -> Java -> Code Style -> Imports -> Class count to use import with '*'
The feature can not be disabled. You need to s...
How to use WeakReference in Java and Android development?
I have been a java developer for 2 years.
4 Answers
4
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javac not working in windows command prompt
I'm trying to use javac with the windows command prompt, but it's not working.
17 Answers
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Match whitespace but not newlines
...eason, Perl \h differs from POSIX blank ([[:blank:]] in Perl, \p{Blank} in Java) and Java 8 \h. Admittedly, it's an edge case.
– Aleksandr Dubinsky
Feb 3 '16 at 18:07
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How to parse/format dates with LocalDateTime? (Java 8)
Java 8 added a new java.time API for working with dates and times ( JSR 310 ).
7 Answers
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How to set up Spark on Windows?
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Steps to install Spark in local mode:
Install Java 7 or later.
To test java installation is complete, open command prompt type java and hit enter.
If you receive a message 'Java' is not recognized as an internal or external command. You need to configure your environmen...
Does setting Java objects to null do anything anymore?
I was browsing some old books and found a copy of "Practical Java" by Peter Hagger. In the performance section, there is a recommendation to set object references to null when no longer needed.
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How can I find and run the keytool
...und a solution by myself as below quote. It works fine.
"C:\Program Files\Java\jdk1.6.0_26\bin\keytool.exe" -exportcert -alias
> sociallisting -keystore "D:\keystore\SocialListing" |
> "C:\cygwin\bin\openssl.exe" sha1 -binary | "C:\cygwin\bin\openssl.exe"
> base64
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Downcasting in Java
Upcasting is allowed in Java, however downcasting gives a compile error.
11 Answers
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How can I make a multipart/form-data POST request using Java?
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These are the Maven dependencies I have.
Java Code:
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
FileBody uploadFilePart = new FileBody(uploadFile);
MultipartEntity reqEntity = new MultipartEntity();
reqEntity.addPart("up...