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A JRE or JDK must be available in order to run Eclipse. No JVM was found after searching the followi

Eclipse is unable to open, have used eclipse before and has open before without a problem. Now I keep getting the following error message: ...
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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities

What are some algorithms which we use daily that has O(1), O(n log n) and O(log n) complexities? 11 Answers ...
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How do you find out the type of an object (in Swift)?

When trying to understand a program, or in some corner-cases, it's useful to be able to actually find out what type something is. I know the debugger can show you some type information, and you can usually rely on type inference to get away with not specifying the type in those situations, but still...
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How do I add comments to package.json for npm install?

I've got a simple package.json file and I want to add a comment. Is there a way to do this, or are there any hacks to make this work? ...
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Inputting a default image in case the src attribute of an html is not valid?

...tatic.net/Img/unified/sprites.svg?v=e5e58ae7df45" alt="Stack Overflow logo and icons and such"> </object> </p> </body> </html> Since the first image doesn't exist, the fallback (the sprites used on this web site*) will display. And if you're using a re...
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How to configure Ruby on Rails with no database?

...ent need for a database. I know I could create an empty database in MySQL and go from there, but does anyone know a better way to run Rails without a database? ...
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Capturing standard out and error with Start-Process

Is there a bug in PowerShell's Start-Process command when accessing the StandardError and StandardOutput properties? ...
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How can I convert spaces to tabs in Vim or Linux?

... Using Vim to expand all leading spaces (wider than 'tabstop'), you were right to use retab but first ensure 'expandtab' is reset (:verbose set ts? et? is your friend). retab takes a range, so I usually specify % to mean "the whole file". :s...
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Restoring MySQL database from physical files

... this is true only for MyISAM tables. InnoDB stores its tables and indexes in a single tablespace *, which by default consist of the 3 files ibdata1, ib_logfile0, and ib_logfile1. for restoring a database, you would also need those files. * per-table tablespaces are possible, but not de...
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Constantly print Subprocess output while process is running

... You can use iter to process lines as soon as the command outputs them: lines = iter(fd.readline, ""). Here's a full example showing a typical use case (thanks to @jfs for helping out): from __future__ import print_function # Only Python 2.x import subprocess def execute(cmd):...