increment

A lot of our code is legacy but we are moving to a "Big Data" back-end and I'm trying to evangelize the newer API calls, encourage the use of the latest Spring libraries etc. One of our problems is application layer ID generation. For reasons I don't understand, a higher authority wants sequential BigInteger's. I would have made them random with re-generate and re-try on failed insertions but I done got vetoed. Grumbling aside, I'm in a position where I need to increment and get a BigInteger across threads and do it in a safe and performant manner. I've never used AtomicReference before but it

In Python it's annoying to have to check whether a key is in the dictionary first before incrementing it: if key in my_dict: my_dict[key] += num else: my_dict[key] = num Is there a shorter substitute for the four lines above? An alternative is: my_dict[key] = my_dict.get(key, 0) + num Blender You have quite a few options. I like using Counter : >>> from collections import Counter >>> d = Counter() >>> d[12] += 3 >>> d Counter({12: 3}) Or defaultdict : >>> from collections import defaultdict >>> d = defaultdict(int) # int() == 0, so the default value for each key is 0 >>> d[12] += 3 >>> d

I am trying to create a Google Map with multiple geocode locations and a unique alert for each location. Eventually, the locations and locations content will be dynamically generated, but right now, I am just trying to get it working with static content. My map points are appearing properly, however, I am having a problem with the alerts which will not appear with the incrementing variable in place. As far as I can tell, the var [i] in locationContent[i][0] is not being replaced with a number. http://jsfiddle.net/rum0gxtw/ When I replace the code with locationContent[0][1] for example, it

We all know the basic $i = 1; while ($i<100){ echo $i; $i++ } Question: How do I increment $i by a random number between 1 and 5 each time it loops? Exactly like you described it in words: By increment it with a random number between 1 and 5. while ($i < 1000) { echo $i; $i += rand(1,5); } rand() In one line: for ($i = 1; $i < 1000; $i += rand(1, 5)) echo $i; mt_rand is faster and uses uses the Mersenne Twister algorythm (1997) while ($i < 1000) { echo $i; $i += mt_rand(1,5); } 来源： https://stackoverflow.com/questions/10131966/php-loop-increment-randomly

have a question about CountDownTimer. I have to make an application that allows the user to increment the time time by +1, for every click of the button. Then after the button stops being clicked it waits for three seconds, then starts to countdown. I pasted my code below. My Issue is: I can't seem to get the Incrementing of the number working correctly, however it seems that after I stop Incrementing the number (onStop()) it directly goes to (onFinish()). Instead of going to the OnTick() and decreasing the number by 1 every second. I have tried numerous ways to fix this, but have been stuck.