All done

TestAssessment/TestViewController.m

@@ -19,39 +19,49 @@ @implementation TestViewController
     This method should return any negative NSInteger
     (hint: cannot be 0)
  */
-- (void)shouldReturnANegativeNSInteger {
-
+- (NSInteger)shouldReturnANegativeNSInteger {
+    NSInteger negativeNSInteger = -5;
+    return negativeNSInteger;
 }
 
 /*
     This method should return any positive CGFloat
     (hint: cannot be 0)
  */
-- (void)shouldReturnAPositiveCGFloat {
-
+- (CGFloat)shouldReturnAPositiveCGFloat {
+    CGFloat positiveFloat = 5.3;
+    return positiveFloat;
 }
 
 /*
     This method should return a truthy boolean
     Truthy: Something which evaluates to TRUE.
  */
-- (void)shouldReturnAPositiveBool {
-
+- (BOOL)shouldReturnAPositiveBool {
+    return TRUE;
 }
 
 /*
     This method should return any single char from c - l
  */
-- (void)shouldReturnACharCtoL {
-
+- (char)shouldReturnACharCtoL {
+    char letter = 'c';
+    return letter;
 }
 
 /*
-    This method should return the product of all numbers from
+    This method should return the sum of all numbers from
     0 - 1000 using a loop (eg. 1 + 2 + 3 + ... + 998 + 999)
  */
 - (NSInteger)shouldReturnSumOf0To1000 {
-    return 0;
+    NSInteger sum = 0;
+
+    for (int i = 0; i < 1000; i++) {
+        sum += i;
+    }
+
+
+    return sum;
 }
 
 /*
@@ -60,7 +70,12 @@ Given a c array (int[]) and a count, return the average of the numbers within th
  */
 - (NSInteger)shouldReturnAverageOfArrayValues :(int *)arr
                                  withSize:(int)count {
-    return 0;
+    NSInteger sum = 0;
+
+    for (int i = 0; i < count; i++) {
+        sum += arr[i];
+    }
+    return sum/count;
 }
 
 /*
@@ -70,7 +85,14 @@ Provided a C string (array of chars), return the character
     (hint: assume there will be a char after g)
  */
 - (char)shouldReturnCharAfterG:(char *)str {
-    return '\0';
+
+    int i = 0;
+
+    while (str[i] != 'g') {
+        i++;
+    }
+
+    return str[i+1];
 }
 
 /*
@@ -79,21 +101,31 @@ - (char)shouldReturnCharAfterG:(char *)str {
  */
 - (NSInteger)productOfAnInteger:(NSInteger)aNumber
               andAnotherInteger:(NSInteger)bNumber {
-    return 0.0;
+    return aNumber * bNumber;
 }
 
 
 /*
     This method should return a YES if aNumber is Even
  */
 - (BOOL)isEven:(NSInteger)aNumber {
+
+    if (aNumber%2 == 0) {
+        return YES;
+    }
+
     return NO;
 }
 
 /*
     This method should return YES if aNumber is a multiple of 10
  */
 - (BOOL)isMultipleOfTen:(NSInteger)aNumber {
+
+    if (aNumber%10 == 0) {
+        return YES;
+    }
+
     return NO;
 }
 
@@ -102,6 +134,11 @@ - (BOOL)isMultipleOfTen:(NSInteger)aNumber {
  */
 - (BOOL)returnYesIfThisNumberIsOdd:(NSInteger)aNumber
                andThisNumberIsEven:(NSInteger)bNumber {
+
+    if (aNumber%2 != 0 && bNumber%2 == 0) {
+        return YES;
+    }
+
     return NO;
 }
 
@@ -110,21 +147,27 @@ - (BOOL)returnYesIfThisNumberIsOdd:(NSInteger)aNumber
     (hint: command + click on the class name to see what methods are available)
  */
 - (NSString *)shouldReturnCarModel:(Car *)car {
-    return @"";
+
+
+    return car.model;
 }
 
 /*
     This method should change the model of the car to "Firebird"
  */
 - (void)changeCarModelToFirebird:(Car *)car {
+
+    car.model = @"Firebird";
 }
 
 /*
     This method should ask the car to drive 4 miles and then return
     the car's current fuel level
  */
 - (CGFloat)tellCarToDrive4MilesAndReturnFuelLevel:(Car *)car {
-    return 0.0;
+
+    [car drive:4];
+    return [car fuelLevel];
 }
 
 /*
@@ -135,11 +178,27 @@ - (CGFloat)tellCarToDrive4MilesAndReturnFuelLevel:(Car *)car {
     4) Return the car
  */
 - (Car *)createAndReturnANewCar {
-    return [[Car alloc] init];
+
+    Car *myCar = [[Car alloc] init];
+    myCar.model = @"Honda Pilot";
+    [myCar drive:6];
+
+
+    return myCar;
 }
 
 - (int)returnSumOfAllItemsGreaterThan100:(int *)arr withSize:(int)size {
-    return 0;
+
+    int sum = 0;
+
+    for (int i = 0; i < size; i++) {
+        if (arr[i] > 100) {
+            sum += arr[i];
+        }
+
+    }
+
+    return sum;
 }
 
 @end