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Where should I put the log4j.properties file?
I wrote a web service project using netbeans 6.7.1 with glassfish v2.1, put log4j.properties to the root dir of project and use:
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How to use git bisect?
I have read some articles saying that git bisect is awesome. However, I'm not a native speaker and I can't understand why it's awesome.
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Why do I get access denied to data folder when using adb?
... you want to browse everything on your device.
You need to have a phone with root access in order to browse the data folder on an Android phone. That means either you have a developer device (ADP1 or an ION from Google I/O) or you've found a way to 'root' your phone some other way.
You need to be ...
Add a default value to a column through a migration
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Here's how you should do it:
change_column :users, :admin, :boolean, :default => false
But some databases, like PostgreSQL, will not update the field for rows previously created, so make sure you update the field manaully on the migration too.
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Sort a Map by values
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edited Apr 3 '18 at 0:00
community wiki
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Create instance of generic type in Java?
Is it possible to create an instance of a generic type in Java? I'm thinking based on what I've seen that the answer is no ( due to type erasure ), but I'd be interested if anyone can see something I'm missing:
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How to run a program without an operating system?
How do you run a program all by itself without an operating system running?
Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU?
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Insert picture/table in R Markdown [closed]
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Several sites provide reasonable cheat sheets or HOWTOs for tables and images. Top on my list are:
Pandoc readme, specifically tables
RStudio's RMarkdown, more details in basics (including tables) and a rewrite of pandoc's markdown....
Why should eval be avoided in Bash, and what should I use instead?
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There's more to this problem than meets the eye. We'll start with the obvious: eval has the potential to execute "dirty" data. Dirty data is any data that has not been rewritten as safe-for-use-in-situation-XYZ; in our case, it's any string that has not been formatted so as to be safe ...
Role/Purpose of ContextLoaderListener in Spring?
...Listener entry in my web.xml file. But could not figure out how exactly it helps a developer?
15 Answers
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