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Java LinkedHashMap get first or last entry
...ent = iterator.next() }
edit: However, if you're willing to go beyond the JavaSE API, Apache Commons Collections has its own LinkedMap implementation, which has methods like firstKey and lastKey, which do what you're looking for. The interface is considerably richer.
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Encode String to UTF-8
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String objects in Java use the UTF-16 encoding that can't be modified.
The only thing that can have a different encoding is a byte[]. So if you need UTF-8 data, then you need a byte[]. If you have a String that contains unexpected data, then ...
Give examples of functions which demonstrate covariance and contravariance in the cases of both over
Please show a good example for covariance and contravariance in Java.
3 Answers
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Double decimal formatting in Java
...h is probably different from those of Nambari. Have a look at NumberFormat javadoc : docs.oracle.com/javase/1.4.2/docs/api/java/text/…
– Michael Zilbermann
Oct 9 '12 at 18:54
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java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
...k right the file "add as library" 3. check your import statements in your .java-files.
– Martin Pfeffer
Apr 2 '17 at 12:06
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What is the best Java library to use for HTTP POST, GET etc.? [closed]
What is the best Java library to use for HTTP POST, GET etc. in terms of performance, stability, maturity etc.? Is there one particular library that is used more than others?
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Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?
If you started a new Java EE project today which is to be finished in about a year, which application server would you choose and why?
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Use JNI instead of JNA to call native code?
...ses this byte buffer. This would require you to copy this buffer from c to java, then copy it back from java to c. In this case jni will win in performance because you can keep and modify this buffer in c, without copying.
These are the problems I've encountered. Maybe there's more. But in general...
Proper usage of Java -D command-line parameters
When passing a -D parameter in Java, what is the proper way of writing the command-line and then accessing it from code?
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Javadoc: package.html or package-info.java
When trying to create package level Javadoc comments, whats the preferred method? What do you do?
1 Answer
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