Confusion in declaring String Objects

Confusion in declaring String Objects

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Confusion in declaring String Objects
Tag : java , By : user184406
Date : November 25 2020, 01:01 AM

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Confusion about declaring object

Tag : java , By : somebody
Date : March 29 2020, 07:55 AM
wish helps you I am learning Collections in CoreJava book and I found this code: , The code:
List<String> list = new LinkedList<String>();
LinkedList<String> list = new LinkedList<String>();
List<String> list = new ArrayList<String>();
List<String> list;
list = new LinkedList<String>();
list = new ArrayList<String>();

Confusion about declaring pointers to id

Tag : objective-c , By : jay
Date : March 29 2020, 07:55 AM
I hope this helps you . id is a type. It can hold a pointer to any object. Class is a type. It can hold a pointer to any class object. (A class object is the object representing a class. i.e. the object that gets messaged when you call a class (+) method.) MyClass * is a type. It can hold a pointer to any object that is an instance of MyClass
class1 and class2 are pointers to objects.

C++ syntax confusion - declaring unsigned char arrays

Tag : cpp , By : appdelivery
Date : March 29 2020, 07:55 AM
around this issue unsigned char * is not an array, it's a pointer. You want to declare it
unsigned char p[] = {red, green, blue};

Python declaring multiple variable confusion

Tag : python , By : Grik
Date : March 29 2020, 07:55 AM
I hope this helps . I would like to know why this code is giving me two different solution: , The difference explained
Because you write:
a = b
b = a + b
a, b = b, a + b
o o e o o e o o e ...
a = 1
b = 2
solution = 0

while b <= 4000000:
    solution += b
    a,b = a+2*b,2*a+3*b

original   3.4839362499988056
optimized  1.5940769709995948  45.755%

What are the advantages or disadvantages of declaring function/method in companion objects versus declaring them in trai

Tag : scala , By : Mario Tristan
Date : September 28 2020, 01:00 PM
like below fixes the issue The first style is called mixin, it used to be somewhat popular back in the days.
It could be replaced by the following code:
object SomeOtherStuff {
   def someMethod(): String

object SomeObj {
  import SomeOtherStuff._

  //now someMethod is available
  def otherMethod(): String = someMethod + "!"

object Caller {
  import SomeObj._
  import SomeOtherStuff._

  //utility methods from both objects are available here

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