I have a lot to review

TestAssessment/Person.h

@@ -12,6 +12,8 @@
 
 @interface Person : NSObject
 
+
+
 - (void)setName:(NSString *)name;
 - (NSString *)name;
 

TestAssessment/TestViewController.m

@@ -18,46 +18,85 @@ @implementation TestViewController
     This method should return any positive NSInteger 
     (hint: cannot be 0)
  */
-- (void)shouldReturnAPositiveNSInteger {
+- (NSInteger)shouldReturnAPositiveNSInteger{
 
+//    if (i > 0) {
+//        return i;
+//    }
+//    i = i * -1;
+//    return i;
+//}
+
+    return 4;
 }
 
 /*
     This method should return any negative CGFloat 
     (hint: cannot be 0)
  */
-- (void)shouldReturnANegativeCGFloat {
+- (CGFloat)shouldReturnANegativeCGFloat{
+
+//    if (i < 0) {
+//        return i;
+//    }
+//    i = -i;
+//    
+//    return i;
 
+    return -8.0;
 }
 
 /*
     This method should return a falsy boolean
     Falsey: Something which evaluates to FALSE.
  */
-- (void)shouldReturnAFalseyBool {
+- (BOOL)shouldReturnAFalseyBool {
+
 
+    return NO;
 }
 
 /*
     This method should return a single char from a - z
  */
-- (void)shouldReturnACharAtoZ {
+- (char)shouldReturnACharAtoZ{
+
+//    char aLetter;
+////    char anArray[26] = "abcdefghijklmnopqrstuvwxyz";
+////    
+////    while (<#condition#>) {
+////        <#statements#>
+////    }
+//    
+//    return aLetter;
+    return 'c';
 }
 
 /*
     This method should return the sum of all numbers from 
     0 - 99 using a loop (. 1 + 2 + 3 + ... + 98 + 99)
  */
 - (NSInteger)shouldReturnSumOf0To100 {
-    return 0;
+
+    int sum = 0;
+    for (int i = 0; i < 100; i++) {
+        sum = sum + i;
+    }
+
+    return sum;
 }
 
 /*
     Given a c array (int[]) and a count, return the sum of the numbers within the arr
     (eg. arr[0] + arr[1] ...)
  */
 - (NSInteger)shouldReturnSumOfArrayValues:(int *)arr withSize:(int)count {
-    return 0;
+
+    int sum = 0;
+    for (int i = 0; i < count; i++) {
+        sum = sum + arr[i];
+    }
+    return sum;
 }
 
 /*
@@ -67,36 +106,80 @@ Provided a C string (array of chars), return the character
     (hint: while loop)
  */
 - (char)shouldReturnCharBeforeQ:(char *)str {
-    return '\0';
+
+//    int i = 0;
+//    
+//    while (str[i] != 'q') {
+//        
+//        if (str[i] == 'q') {
+//            return str[i-1];
+//        }
+//        
+//        i++;
+//    }
+//    //I know this is incorrect
+//    return str[i];
+
+
+    int i = 0;
+
+    while (str[i] != 'q') {
+    //the loop will continue until it finds a 'q'. when it does it will break out of the loop. No need for an if statement.
+            i++;
+        }
+
+    return str [i - 1];
+
 }
 
 /*
     This method should return the sum of aNumber + bNumber
  */
 - (NSInteger)sumOfAnInteger:(NSInteger)aNumber andAnotherInteger:(NSInteger)bNumber {
-    return 0;
+
+    NSInteger sum = aNumber + bNumber;
+
+    return sum;
 }
 
 
 /*
     This method should return a YES if aNumber is odd
  */
 - (BOOL)isOdd:(NSInteger)aNumber {
-    return NO;
+
+    if (aNumber %2 == 0) {
+        return NO;
+    }
+
+    return YES;
 }
 
 /*
     This method should return YES if aNumber is a multiple of 5
  */
 - (BOOL)isMultipleOfFive:(NSInteger)aNumber {
-    return NO;
+    //the below works!
+//    if (aNumber %5 == 0) {
+//        return YES;
+//    }
+//    return NO;
+
+    //This would also work:
+    return aNumber %5 == 0;
+    //same for the above
 }
 
 /*
     This method should return YES is aNumber is odd and bNumber is even
  */
 - (BOOL)returnYesIfThisNumberIsOdd:(NSInteger)aNumber
                andThisNumberIsEven:(NSInteger)bNumber {
+
+    if (aNumber %2 != 0 && bNumber %2 == 0) {
+        return YES;
+    }
+
     return NO;
 }
 
@@ -105,14 +188,15 @@ - (BOOL)returnYesIfThisNumberIsOdd:(NSInteger)aNumber
     parameter (hint: command + click on class name to jump to the interface.
  */
 - (NSString *)shouldReturnPersonsName:(Person *)person {
-    return @"";
+
+    return [person name];
 }
 
 /*
     This method should change the person name to "Ada Lovelace"
  */
-- (void)changePersonsNameToAdaLovelace:(Person *)person {
-
+- (void) changePersonsNameToAdaLovelace:(Person *)person {
+    [person setName:@"Ada Lovelace"];
 }
 
 /*
@@ -122,7 +206,11 @@ - (void)changePersonsNameToAdaLovelace:(Person *)person {
     3) Set the person's age to 1823
  */
 - (Person *)createAndReturnPersonWithSomeProperties {
-    return [[Person alloc] init];
+    Person *anotherPerson = [[Person alloc] init];
+    [anotherPerson setName:@"Santa Clause"];
+    [anotherPerson setAge:1823];
+
+    return anotherPerson;
 }
 
 /*
@@ -133,14 +221,16 @@ - (Person *)createAndReturnPersonWithSomeProperties {
 
  */
 - (void)makePersonSitInChair:(Chair *)chair {
-
+    Person *person = [[Person alloc] init];
+    [person sitInChair:chair];
 }
 
 /*
     This method provides you an instance of Person as a parameter
     Send a message to this Person object telling it to stand up
  */
 - (void)makePersonStandUp:(Person *)person {
+    [person standUp];
 
 }
 
@@ -149,7 +239,23 @@ - (void)makePersonStandUp:(Person *)person {
     https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSArray_Class/
  */
 - (NSArray *)createAndReturnNSArray {
-    return [[NSArray alloc] init];
+
+
+    NSArray *arr = [[NSArray alloc] init];
+    NSString *object1 = @"one";
+    NSString *object2 = @"two";
+    NSString *object3 = @"three";
+    NSString *object4 = @"four";
+    NSString *object5 = @"five";
+    NSString *object6 = @"six";
+
+    arr = [NSArray arrayWithObjects:object1, object2, object3, object4, object5, object6, nil];
+
+    return arr;
+
+    //also, the following would work:
+    //return [NSArray arrayWithObjects: @"one", @"two", @"three", @"four", @"five", @"six", nil];
+    //Because "arrayWithObjects" does the alloc init for you.
 }
 
 // BONUS
@@ -161,6 +267,11 @@ - (NSArray *)createAndReturnNSArray {
 - (void)changeValueOfIndexFourInArray:(NSMutableArray *)arr
                         toPersonsName:(Person *)person {
 
+    [arr replaceObjectAtIndex:4 withObject:[person name]];
+
+    //this also would work, but it might not give you "bounce checking", i.e. give you an error msg, it might just silently fail
+    //arr[4] = [person name];
+
 }
 
 // BONUS
@@ -172,7 +283,14 @@ - (void)changeValueOfIndexFourInArray:(NSMutableArray *)arr
 
 - (NSString *)repeatString:(NSString *)str
              numberOfTimes:(NSInteger)x {
-    return @"";
+
+    //from review in class
+    NSMutableString *finalString = [[NSMutableString alloc] init];
+    for (int i = 0; i < x; i++) {
+        [finalString appendString:str];
+    }
+
+    return finalString;
 }
 
 // BONUS
@@ -184,7 +302,28 @@ - (NSString *)repeatString:(NSString *)str
     (ex: [200, 500, 100, 400] returns 800)
  */
 - (int)returnSumWhileSumIsLessThan1050:(int *)arr {
-    return 0;
+
+    //from in-class review
+//    int i = 0;
+//    int sum = 0;
+//    
+//    while (sum <= 1050) {
+//        sum = sum + arr[i];
+//        i++;
+//    }
+//    
+//    return sum - arr [i - 1 ];
+
+    //Caleb's solution
+    int i = 0;
+    int sum = 0;
+
+    while (sum  + arr[i] <= 1050) {
+        sum = sum + arr[i];
+        i++;
+    }
+
+    return sum;
 }
 
 @end