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Variable length (Dynamic) Arrays in Java
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you use
List<Integer> ints = new ArrayList<Integer>();
Then to change the list you use ints.add(y) and ints.remove(z) amongst many other handy methods you can find in the appropriate Javadocs.
I strongly recommend studying the Collections classes available in Java as they are ve...
Override console.log(); for production [duplicate]
...or(text);
// Your code
}
};
}(window.console));
//Then redefine the old console
window.console = console;
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What is a smart pointer and when should I use one?
... but you really wanted to, admit it.
So when should I use regular pointers then?
Mostly in code that is oblivious to memory ownership. This would typically be in functions which get a pointer from someplace else and do not allocate nor de-allocate, and do not store a copy of the pointer which outla...
Array.push() if does not exist?
...), you can check if an item exists by calling .indexOf() and if it doesn't then just push the item into the array:
var newItem = "NEW_ITEM_TO_ARRAY";
var array = ["OLD_ITEM_1", "OLD_ITEM_2"];
array.indexOf(newItem) === -1 ? array.push(newItem) : console.log("This item already exists");
c...
How do I check (at runtime) if one class is a subclass of another?
...s a float, the convention is to normalize between 0.0 and 1.0, if it's int then the convention is 0 to 255. I could go through all sorts of contortions to try and get the image to quack, but it's much more straight forward to just ask "are you a duck" and scale my operations accordingly.
...
dyld: Library not loaded … Reason: Image not found
... Regarding to @MichaelBehrens's comment, I run brew cleanup then it fixed.
– Buraco
May 1 at 14:19
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What is the difference between an ordered and a sorted collection?
...SortedSet has inherited from Set and is having a is-a relationship with it then how can u say Set is without any order
– xpioneer
May 17 '19 at 7:21
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Installing python module within code
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from pip._internal import main as pipmain then you can use pipmain() just like the deprecated pip.main() see stackoverflow.com/questions/43398961/…
– 3pitt
May 30 '18 at 15:48
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SQL error “ORA-01722: invalid number”
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Suppose telephone number is defined as NUMBER then the blanks cannot be converted into a number:
create table telephone_number (tel_number number);
insert into telephone_number values ('0419 853 694');
The above gives you a
ORA-01722: invalid number
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Running a Python script from PHP
...tory called scripts. Within scripts I added a new file called test.py.
I then used sudo chown www-data:root scripts and sudo chown www-data:root test.py.
Then I went to the new scripts directory and used sudo chmod +x test.py.
My test.py file it looks like this. Note the different Python version...