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what is the difference between a portlet and a servlet?
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Servlets and Portlets are web based components which use Java for
their implementation.
Portlets are managed by a portlet container just like servlet is
managed by servlet container.
Both static and dynamic content can be generated by Portlets and
Servlets.
The life cycle of por...
Eclipse and Windows newlines
...inux just try this on a command line:
sed 's/$'"/`echo \\\r`/" yourfile.java > output.java
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Generate a random double in a range
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This question was asked before Java 7 release but now, there is another possible way using Java 7 (and above) API:
double random = ThreadLocalRandom.current().nextDouble(min, max);
nextDouble will return a pseudorandom double value between the minimum (...
How to parameterize @Scheduled(fixedDelay) with Spring 3.0 expression language?
...sk:scheduled ref="someObject" method="readLog"
fixed-rate="#{T(java.lang.Long).valueOf(YourConfigurationBean.stringValue)}"/>
</task:scheduled-tasks>
Again, I haven't tried any of these setups, but I hope it might help you a bit.
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Maven error: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher
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Worked with Maven 3.3.3 binary, on Ubuntu. JAVA_HOME is not set.
– TFuto
Jun 2 '15 at 14:07
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Scripting Language vs Programming Language [closed]
...before you can run it. But in the normal case, you don't have to compile a JavaScript program before you run it. So JavaScript is sometimes called a "scripting" language.
This line is getting more and more blurry since compilation can be so fast with modern hardware and modern compilation technique...
Type safety: Unchecked cast
...re would not be a warning in the first case, I'm not sure how pedantic the Java compiler is with warnings for Java 5). However, you are converting it to a HashMap<String, String>.
HashMaps are really maps that take an object as a key and have an object as a value, HashMap<Object, Object>...
Java 8 stream reverse order
... one of our company's internal utility classes, which we use to supplement java.util.stream.Stream's static methods.
– Brandon
Jan 6 '16 at 20:54
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RabbitMQ and relationship between channel and connection
The RabbitMQ Java client has the following concepts:
4 Answers
4
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What is the difference between == and equals() in Java?
...ich states that equal objects must have equal hash codes. (docs.oracle.com/javase/7/docs/api/java/lang/…)
– Abhijeet
Jul 6 '16 at 13:20
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