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Converting an object to a string
How can I convert a JavaScript object into a string?
36 Answers
36
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How to read the RGB value of a given pixel in Python?
...age with open("image.jpg") , how can I get the RGB values of a pixel assuming I have the coordinates of the pixel?
13 Answ...
Java String remove all non numeric characters
Trying to remove all letters and characters that are not 0-9 and a period. I'm using Character.isDigit() but it also removes decimal, how can I also keep the decimal?
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Android studio logcat nothing to show
I installed Android Studio yesterday, and I tried to use the LogCat to see the logs. But there is nothing to show in the logcat. I used the terminal to run ./adb logcat and it works.
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In Clojure, when should I use a vector over a list, and the other way around?
...tors are not seqs, but Lists are. I'm not sure what the rationale is for using one over the other. It seems that vectors are used the most, but is there a reason for that?
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How to start two threads at “exactly” the same time
...nt to start just 2 threads at the same time, but let's control that
// timing from the main thread. That's why we have 3 "parties" instead of 2.
final CyclicBarrier gate = new CyclicBarrier(3);
Thread t1 = new Thread(){
public void run(){
gate.await();
//do stuff
}};
Th...
Access is denied when attaching a database
I am using SQL Server 2008 developer edition. I was trying to attach the AdventureWorks2008 database.
31 Answers
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“Comparison method violates its general contract!”
Can someone explain me in simple terms, why does this code throw an exception, "Comparison method violates its general contract!", and how do I fix it?
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How do I determine whether an array contains a particular value in Java?
I have a String[] with values like so:
29 Answers
29
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Waiting until two async blocks are executed before starting another block
When using GCD, we want to wait until two async blocks are executed and done before moving on to the next steps of execution. What is the best way to do that?
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