Applying an IF STATEMENT to my word generator - objective-c

Question

When I try adding an "if" statement to my word generator I get an error stating "Expected Expression". If I take the if statement out, it works fine but what I want to do is have several word generators and depending on the value of my variable "variable" determine which word generator is accessed.
Example: If "variable" is equal to 1 then the first word generator is accessed. If "variable is equal to 2 then the second word generator is accessed
Below is the code from my implementation file.
#import "ViewController2.h"
#import "ViewController.h"
#import "ViewController3.h"
#interface ViewController2 ()
#end
#implementation ViewController2
-(IBAction)random {
if (int variable = 3) {
int text = rand() %3;
switch (text) {
case 0:
introLabel.text = #"Test 1";
break;
case 1:
introLabel.text = #"Test 2";
break;
case 2:
introLabel.text = #"Test 3";
break;
default:
break;
}
}
}
-(IBAction)backButton:(id)sender {
ViewController *viewController2 = [[ViewController alloc] initWithNibName:nil bundle:nil];
[self presentModalViewController:viewController2 animated:YES];
}
-(IBAction)moreButton:(id)sender {
ViewController3 *viewController2 = [[ViewController3 alloc] initWithNibName:nil bundle:nil];
[self presentModalViewController:viewController2 animated:YES];
}
Thanks in advance for any help.

Answer 1

Your question is unclear but I think you are talking about the line:
if (int variable = 3) {
That is invalid Objective-C syntax. Perhaps you want:
if (variable == 3) {
This assumes you have an instance variable named variable (which is a terrible name).
So your random method becomes something like:
-(IBAction)random {
if (variable == 1) {
int text = rand() %3;
switch (text) {
case 0:
introLabel.text = #"Test 1";
break;
case 1:
introLabel.text = #"Test 2";
break;
case 2:
introLabel.text = #"Test 3";
break;
default:
break;
}
} else if (variable == 2) {
// process the 2nd word generator here
} else if (variable == 3) {
// process the 3rd word generator here
}
}
Again, you need to add an instance variable named variable and you set that value somewhere appropriate. Or variable can be another local variable assigned the value of rand() like you do with the text variable.