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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...
What is the status of JSR 305?
I have seen the question JSR305 vs. JSR308 (Java Type Anotations) - Which is going to be the standard? and I understand the difference between JSR 308 and JSR 305 .
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Easy way to write contents of a Java InputStream to an OutputStream
...mple way to write the contents of an InputStream to an OutputStream in Java. Obviously, the byte buffer code isn't difficult to write, but I suspect I'm just missing something which would make my life easier (and the code clearer).
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What does PermGen actually stand for?
.... Details are of course implementation specific.
Briefly, it contains the Java objects associated with classes and interned strings. In Sun's client implementation with sharing on, classes.jsa is memory mapped to form the initial data, with about half read-only and half copy-on-write.
Java objects...
Good reasons to prohibit inheritance in Java?
What are good reasons to prohibit inheritance in Java, for example by using final classes or classes using a single, private parameterless constructor? What are good reasons of making a method final?
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What's the equivalent of Java's Thread.sleep() in Objective-C/Cocoa?
In Java you can suspend the current thread's execution for an amount of time using Thread.sleep() . Is there something like this in Objective-C?
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Why is i++ not atomic?
Why is i++ not atomic in Java?
9 Answers
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Java Name Hiding: The Hard Way
...ble with same name. For more such interesting cases, I would recommend 2 "Java Pitfalls" books: books.google.co.in/books/about/… books.google.co.in/books/about/…
– RRM
Jul 28 '14 at 8:06
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In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without
I'm using Eclipse for Java development. All my sources compile fine and the resulting application compiles fine. However, I keep getting an "red-x" error notification in the Package Explorer.
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Run java jar file on a server as background process
I need to run a java jar in server in order to communicate between two applications. I have written two shell scripts to run it, but once I start up that script I can't shut down / terminate the process. If I press ctrl + C or close the console, the server will shut down. Could anyone help me how ...