1st day with ObjC - HELP

[clockwurk]

Sorry in advance if this is a stupid question but, this is literally my 1st day learning this...

I'm reading a book and one of the challenges was to figure out what the output window will print out.
I've concluded that it would print "The first expression is true." and "The second expression is true.",
but it only printed "The first expression is true." and I don't understand why.

j is greater than i as well... so why doesn't it print both
"The first expression is true." and "The second expression is true."?

Thanks in advance for the help.


#include <stdio.h>
int main (int argc, const char * argv[])
{


    int i = 20;
    int j = 25;
    int k = ( i > j ) ? 10 : 5;
    if ( 5 < j - k ) {
        printf("The first expression is true.");
    } else if ( j > i ) {
        printf("The second expression is true.");
    } else {
            printf("Neither expression is true.");}
   
}

[Waiting]

I'm not too sure about how this line works.

  int k = ( i > j ) ? 10 : 5;

However when you run an if statement, if the condition is true the code in the brackets after is completed, it only runs the else part if the first statement is not true.

Hence you get the first output you expect but the else section does not run as you either run the code in brackets OR the else not both, so the next if isn't run so you don't get the 2nd output you expected.

[clockwurk]

Ok, got it. That makes sense. Thx!


As far as:
 int k = ( i > j ) ? 10 : 5;

According to the book, the "?" is asking if ( i > j ) is true or false.
If its true, then the value is 10. If false, the value is 5

[Waiting]

Ok, got it. That makes sense. Thx!


As far as:
 int k = ( i > j ) ? 10 : 5;

According to the book, the "?" is asking if ( i > j ) is true or false.
If its true, then the value is 10. If false, the value is 5

Ah right i understand it now, glad you understand the output now.