In Objective-C, we can iterate over an array using different approaches such as for loop, while loop, and for-each loop. Here are some examples of iterating over an array in Objective-C using these approaches:
1. For Loop:
``objective-c
NSArray *arr = @[@"apple", @"banana", @"mango", @"orange"];
for (int i = 0; i < [arr count]; i++) {
NSString *fruit = [arr objectAtIndex:i];
NSLog(@"%@", fruit);
}
2. While Loop:
NSArray *arr = @[@"apple", @"banana", @"mango", @"orange"];
int i = 0;
while (i < [arr count]) {
NSString *fruit = [arr objectAtIndex:i];
NSLog(@"%@", fruit);
i++;
}
3. For-each Loop:
NSArray *arr = @[@"apple", @"banana", @"mango", @"orange"];
for (NSString *fruit in arr) {
NSLog(@"%@", fruit);
}
``
All these approaches are useful for iterating over any Objective-C array.