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Unable to add window — token android.os.BinderProxy is not valid; is your activity running?
I try to connect to Facebook throught Facebook API, I follow this example: https://github.com/facebook/facebook-android-sdk/tree/master/examples/simple
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What is the difference between IEqualityComparer and IEquatable?
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IEqualityComparer<T> is an interface for an object that performs the comparison on two objects of the type T.
IEquatable<T> is for an object of type T so that it can compare itself to another of the same type.
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What is the global interpreter lock (GIL) in CPython?
What is a global interpreter lock and why is it an issue?
8 Answers
8
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Read properties file outside JAR file
I have a JAR file where all my code is archived for running. I have to access a properties file which need to be changed/edited before each run. I want to keep the properties file in the same directory where the JAR file is. Is there anyway to tell Java to pick up the properties file from that direc...
Checking if a variable is defined?
How can I check whether a variable is defined in Ruby? Is there an isset -type method available?
14 Answers
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What is the difference between string primitives and String objects in JavaScript?
...n terms of functionality. That aside, the behaviour you are trying to name is called auto-boxing. So what actually happens is that a primitive is converted to its wrapper type when a method of the wrapper type is invoked. Put simple:
var s = 'test';
Is a primitive data type. It has no methods, it...
Android: Difference between onInterceptTouchEvent and dispatchTouchEvent?
What is the difference between onInterceptTouchEvent and dispatchTouchEvent in Android?
14 Answers
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Quick Sort Vs Merge Sort [duplicate]
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See Quicksort on wikipedia:
Typically, quicksort is significantly
faster in practice than other Θ(nlogn)
algorithms, because its inner loop can
be efficiently implemented on most
architectures, and in most real-world
data, it is possible to make design
choices ...
Why does Math.Round(2.5) return 2 instead of 3?
In C#, the result of Math.Round(2.5) is 2.
15 Answers
15
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java.sql.SQLException: - ORA-01000: maximum open cursors exceeded
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ORA-01000, the maximum-open-cursors error, is an extremely common error in Oracle database development. In the context of Java, it happens when the application attempts to open more ResultSets than there are configured cursors on a database instance.
Common causes ar...