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How to synchronize a static variable among threads running different instances of a class in Java?
I know that using the synchronize keyword before a method brings synchronization to that object. That is, 2 threads running the same instance of the object will be synchronized.
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How can I initialize base class member variables in derived class constructor?
Why can't I do this?
8 Answers
8
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Git diff against a stash
How can I see the changes un-stashing will make to the current working tree? I would like to know what changes will be made before applying them!
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Hadoop “Unable to load native-hadoop library for your platform” warning
I'm currently configuring hadoop on a server running CentOs . When I run start-dfs.sh or stop-dfs.sh , I get the following error:
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Find element's index in pandas Series
I know this is a very basic question but for some reason I can't find an answer. How can I get the index of certain element of a Series in python pandas? (first occurrence would suffice)
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What does `void 0` mean? [duplicate]
Reading through the Backbone.js source code, I saw this:
3 Answers
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How to find the sum of an array of numbers
Given an array [1, 2, 3, 4] , how can I find the sum of its elements? (In this case, the sum would be 10 .)
43 Answers
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What is the most efficient/elegant way to parse a flat table into a tree?
Assume you have a flat table that stores an ordered tree hierarchy:
14 Answers
14
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Transitions on the CSS display property
I'm currently designing a CSS 'mega dropdown' menu - basically a regular CSS-only dropdown menu, but one that contains different types of content.
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How can I round down a number in Javascript?
How can I round down a number in JavaScript?
11 Answers
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