Q&A Discussions
How to remove all occurences from doubly linked list in java? Here is my code: Contents means the data in my node - it is String
0 Votes
1 Answer
I don't quite get this, it means that if I have an array, say 3 elements, when I say foreach($elements as $element) every one of this three elements will go one by one to the variable $element?
2 Votes
3 Answers
what is it mean that a method reaturn a value or not for example using void to not return a value what it means at deep down of it? what is the big deal ?
0 Votes
3 Answers
can someone help..
what does this code means so it could have the output like on the example..
class SpecialString:
def __init__(self, cont):
self.cont = cont
def __gt__(self, other):
for index in range(len(other.cont)+1):
result = other.cont[:index] + ">" + self.cont
result += ">" + other.cont[index:]
print(result)
spam = SpecialString("spam")
eggs = SpecialString("eggs")
spam > eggs
1 Vote
6 Answers
? : are called Ternary Operators.
ex.
var = booleanExp ? ValueIfTrue : ValueIfFalse;
and that ? literally means "Asking a Question" Asking if the Boolean Expression is True.
If the Boolean Expression returned true, the Value for "True" will be assigned to the variable.
If the Boolean Expression returned false, the Value for "False" will be the one that'll be assigned to the variable instead.
I'm not asking a question, I just wanna share this to you guys 😁
18 Votes
6 Answers
5th q in challenge says that we need tge ages of lions and bears. but according to the given answer they are using IN clause which means lions or crocodiles and bears or birds. so how come this? Is it a mistake?
0 Votes
4 Answers
public static void main (string[ ] args)
i have understood little bit that public means for whole method.
static?
void?
main is a method which creates a string array named args. why the name args?
please explain and correct if i am wrong?
0 Votes
3 Answers
x = 42;
int num = 0;
while (num <3)
Consele.writeline (x);
num++;
int x = 42; is just an int with an asigned value of 42
int num=0; is what initiate the count for the while loop
while (num < 3); means 0<3 true, 1< 3 true, 2<3 true, the loop end at 2 bc 3 <3 is false
consele.writeline (x) will display 42 while num < 3
num++ will execute and then add 1 to check if the while loop still true, but it stop at 2, bc 3 makes it false.
so the consele.write will write 42 three times. x=42, remember the (x)
0 Votes
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