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How to check if a json key exists?
...has":
http://developer.android.com/reference/org/json/JSONObject.html#has(java.lang.String)
Returns true if this object has a mapping for name. The mapping may be NULL.
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How to randomize two ArrayLists in the same fashion?
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This is the Java, object oriented solution. Perhaps, how it should be done... :)
– Evan
Feb 5 '13 at 0:45
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How to change Android version and code version number?
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Is there a way to access the versionname in Java?
– Mark Molina
Jun 13 '14 at 9:33
Do w...
Eclipse Workspaces: What for and why?
...provide you with my vision of somebody who feels very uncomfortable in the Java world, which I assume is also your case.
What it is
A workspace is a concept of grouping together:
a set of (somehow) related projects
some configuration pertaining to all these projects
some settings for Eclipse itself...
Multi-gradient shapes
...works, haha. Right now it works in XML, but should be doable for shapes in Java as well. It's kind of complex, and I imagine there's a way to simplify it into a single shape, but this is what I've got for now:
green_horizontal_gradient.xml
<?xml version="1.0" encoding="utf-8"?>
<shape
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Postgres: “ERROR: cached plan must not change result type”
...ot change result type when trying to solve the problem in the context of a Java / JDBC application.
I was able to reliably reproduce the error by running schema upgrades (i.e. DDL statements) while my back-end app that used the DB was running. If the app was querying a table that had been changed ...
How to restart Jenkins manually?
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For safeRestart, see stackoverflow.com/a/15555339/260122 java -jar /var/cache/jenkins/war/WEB-INF/jenkins-cli.jar -s http://localhost:8080/ safe-restart (if installed by rpm or deb, otherwise adjust accordingly).
– clacke
Nov 14 '13 at 3:28
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What is the difference between a 'closure' and a 'lambda'?
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@AlexanderOrlov: They are both lambdas and closures. Java had closures before via anonymous inner classes. Now that functionality has been made syntactically easier via lambda expressions. So probably the most relevant aspect of the new feature is that there are now lambdas. It...
Writing to output window of Visual Studio
...o the output window for debugging purposes. I searched for a function like Java's system.out.println("") . I tried Debug.Write , Console.Write , and Trace.Write . It does not give an error, but it does not print anything either.
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Setting up a deployment / build / CI cycle for PHP projects
... docs - run cross-platform.
Setting up a hudson server
Prerequisites:
Java (1.5 will serve you just fine)
Read access to the subversion server (I have a separate account for the hudson user)
From here, it's just:
java -jar hudson.war
This will run a small server instance right off your con...