Programming Tricks/Questions/Trivia

[Moonfall]

---

Na impress kus macro expansion definition of constant raman gud akong gamiton for macros as naandan sa skwelahan. Haha
Nindut jud ning procedural kay makat-on jud ta's entirety sa mga processes.

btw, e explain daw ni nga lines:
#define STRINGIFY(A) #A
#define STR(A) STRINGIFY(A)


then naa lage #A ug gigamit lage siya as parameter?

P.S. Sorry, I'm new to macros and still learning T.T

[KeYmAkEr]

Na impress kus macro expansion definition of constant raman gud akong gamiton for macros as naandan sa skwelahan. Haha
Nindut jud ning procedural kay makat-on jud ta's entirety sa mga processes.

btw, e explain daw ni nga lines:
#define STRINGIFY(A) #A
#define STR(A) STRINGIFY(A)


then naa lage #A ug gigamit lage siya as parameter?

P.S. Sorry, I'm new to macros and still learning T.T

diri ra ko nag research2x Stringification - The C Preprocessor

[Sarevok]

[Programming Language]
C#

[Question]
Reduce the "smelliness" of this function by refactoring it to reduce the number of lines of code. (1 line of code is possible)

string func(string value1, string value2)
{ 
   string result;
   if(value1 != null) {
      result = value1;
   }
   else {
      result = value2;
   }
   return result;
}

[csvarona]

string func(string value1, string value2)
{
return (value1 != null) ? value1 : value2;
}

sakto?

[Sarevok]

string func(string value1, string value2)
{
return (value1 != null) ? value1 : value2;
}

sakto?

correct. now ako i-increase ang requirement.

refactor the code so that you will not use the ":" character

[csvarona]

string func(string value1, string value2)
{
return value1 ?? value2;
}

nice

[Sarevok]

string func(string value1, string value2)
{
return value1 ?? value2;
}

nice

correct!

[csvarona]

[Programming Language]
Java

[Question]
What is the output of the following code? (mas maayo if naay explanation para makabalo pud ang mga wala kabalo).

Integer a = 100;
Integer b = 100;
Integer c = 1000;
Integer d = 1000;
System.out.println(a==b);
System.out.println(c==d);

[simoncpu]

string func(string value1, string value2)
{
return value1 ?? value2;
}

nice

Didn't know this trick. I learned something new today.

[simoncpu]

[Programming Language]
Java

[Question]
What is the output of the following code? (mas maayo if naay explanation para makabalo pud ang mga wala kabalo).

Integer a = 100;
Integer b = 100;
Integer c = 1000;
Integer d = 1000;
System.out.println(a==b);
System.out.println(c==d);

My Java is rusty, but I think Integer is an object rather than a primitive type. The == operator, when used on objects, checks if the operands refer to the same object.

int a = 100;
int b = 100;

a == b equals true

Integer a = 100;
Integer b = 100;

a == b equals false