The Big Programming Thread - Page 803

On November 25 2016 12:15 Birdie wrote:
No libraries due to boss saying so basically. Just something to get started with, I've just read https://developers.google.com/web/fundamentals/design-and-ui/responsive/ and found it very helpful so anything along those lines perhaps? Not really sure if there's a "bible" of responsive web design or some standard resource, if there isn't then I can keep potting around on the web reading different resources.

On November 24 2016 22:23 Manit0u wrote:

    public static function bool2int($variable) {
        if ($variable === TRUE) {
            $result = (int) $variable;
        } else if ($variable === FALSE) {
            $result = (int) $variable;
        } else {
            $result = null;
        }
        return $result;
    }

Kill me...

  public bool Even(int number)
  {
     bool even = false;
     if (number % 2 == 0)
     {
       even = true;
     }
     if (even != true)
     {
       return false;
     } 
     else
     {
       return true;
     }
  }

On November 26 2016 01:15 travis wrote:
Okay so, I have an assignment where I am making my own HashSet. It's an array of buckets, buckets have linked lists (also self defined, not using premade structures).

One of the methods I have to define is "getSize" - which returns total number of elements.

A requirement of the project is that it is fast.

And so I ask, what is to keep me from just defining an int variable "size" that increments whenever an element is added and decrements when one is taken away? Wouldn't that be super quick?

On November 26 2016 01:32 Manit0u wrote:
Don't all such structures in Java hold their length as a static property anyway?

You could simply return the sum of lengths of each element. That should be pretty fast. If you want it faster then you add overhead on adding elements and doing it as you pointed out, having the property in your hash set to store it in and recalculating it every time something is added to any of the elements.

On November 26 2016 02:38 Shield wrote:
If you have an integer and you read it as bytes (4 bytes on Windows?), is it in binary mode already? I know binary is 01100110 stuff, but I'm not sure about bytes in this case. I studied Computer Science, but I either forgot or don't know if bytes is still in binary format.

Edit: Well, I remember hearing about bits which are in binary. I guess I just didn't put two and two together.

On November 26 2016 03:31 tofucake wrote:
Technically everything on a computer is binary...

On November 26 2016 03:24 RoomOfMush wrote:
Computer really dont care about binary, decimal or hexadecimal

On November 26 2016 03:31 tofucake wrote:
Technically everything on a computer is binary...

On November 26 2016 01:15 travis wrote:
Okay so, I have an assignment where I am making my own HashSet. It's an array of buckets, buckets have linked lists (also self defined, not using premade structures).

One of the methods I have to define is "getSize" - which returns total number of elements.

A requirement of the project is that it is fast.

And so I ask, what is to keep me from just defining an int variable "size" that increments whenever an element is added and decrements when one is taken away? Wouldn't that be super quick?

On November 26 2016 01:44 travis wrote:
ok cool thanks guys. they didn't really define fast.

On November 26 2016 04:54 BluzMan wrote:


Thread safety if you care for it (which you probably don't since implementing concurrent hash maps is really hard).

On November 26 2016 05:35 travis wrote:
ah solved my own problem

but I am left with a question

are objects that have been declared but not initialized set as "null" in java?

I am reading they are
but then why does eclipse give me errors when I don't initialize them (it makes me explicitly say that they = null)

String a = new String("Hello World");
String b = a;
String c;
String d = null;
new String("Test");

On November 26 2016 05:35 travis wrote:
ah solved my own problem

but I am left with a question

are objects that have been declared but not initialized set as "null" in java?

I am reading they are
but then why does eclipse give me errors when I don't initialize them (it makes me explicitly say that they = null)