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Is a Java hashmap search really O(1)?
...say, balanced trees, its behavior is probabilistic. In these cases its usually most helpful to talk about complexity in terms of the probability of a worst-case event occurring would be. For a hash map, that of course is the case of a collision with respect to how full the map happens to be. A co...
Any reason to write the “private” keyword in C#?
... the defaults, as per your question (I've never liked this argument, personally, but I figured it's worth mentioning)
It gives an impression that you've deliberately decided to make it private, rather than just gone with the defaults.
As for your last part:
Moreover is there a case where writi...
How do I move the turtle in LOGO? [closed]
...
Logo is all about moving the turtle... you give it commands like this:
Forward 100
Right 45
You can do stuff like repeating commands too:
Repeat 8 [Forward 100 Right 45] ; Draw an octagon
(What do I win? 8-)
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Does the order of LINQ functions matter?
Basically, as the question states... does the order of LINQ functions matter in terms of performance ? Obviously the results would have to be identical still...
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Elevating process privilege programmatically?
I'm trying to install a service using InstallUtil.exe but invoked through Process.Start . Here's the code:
5 Answers
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What is the difference between i++ and ++i?
... Neither statement is correct. Consider your first statement. i++ actually means "save the value, increment it, store it in i, then tell me the original saved value". That is, the telling happens after the incrementing, not before as you have stated it. Consider the second statement. i++ actual...
Why doesn't JUnit provide assertNotEquals methods?
...st you use the newer assertThat() style asserts, which can easily describe all kinds of negations and automatically build a description of what you expected and what you got if the assertion fails:
assertThat(objectUnderTest, is(not(someOtherObject)));
assertThat(objectUnderTest, not(someOtherObjec...
Running PostgreSQL in memory only
I want to run a small PostgreSQL database which runs in memory only, for each unit test I write. For instance:
8 Answers
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How can I shuffle an array? [duplicate]
...hout having it show up in loops such as for (i in arr). The following will allow you to call arr.shuffle() to shuffle the array arr:
Object.defineProperty(Array.prototype, 'shuffle', {
value: function() {
for (let i = this.length - 1; i > 0; i--) {
const j = Math.floor(Ma...
Catch multiple exceptions at once?
...ore lines, try to imagine if you are dealing with file IO for example, and all you want to do is catch those exceptions and do some log messaging, but only those you expect coming from your file IO methods. Then you often have to deal with a larger number (about 5 or more) different types of excepti...