OG upload

src/AssessmentPartOne.java

@@ -7,26 +7,26 @@ public class AssessmentPartOne {
 		// Debug this method so it passes the unit test.
 		// Add comments beside any changes you make
 		
-		if (num1<num2)
+		if (num1>num2) //if num1 is bigger than num2 (changed < to >)
 		{
-			if (num3>num1)
+			if (num3>num1) //and if num3 is bigger than num1
 			{
-				return num3;
+				return num3; //num3 is the biggest, so return that
 			}
 			else
 			{
-				return num1;
+				return num1; //if num1 is bigger than num3, num1 is the biggest so return that
 			}
 		}
 		else 
 		{
 			if (num3>num2) 
 			{
-				return num3;						
+				return num3; //if num1 is bigger than num2, and num3 is bigger than num2, return num3					
 			}
 			else
 			{
-				return num2
+				return num2; //else return num2 because it is larger
 			}
 		}
 	}
@@ -42,9 +42,23 @@ public class AssessmentPartOne {
 		
 		// You should comment your code explaining what each part does
 		
-		int sumOfSquares = 0;
+		int sumOfSquares = 0; //initialise sumOfSquares
 		
 		
+		if(start < 0 || end < 0) { 
+			return -1; //because the program can only deal with 0/positive ints, if it is 0 or lower, return -1
+		}
+		else if(start > end) {
+			return -1; //if the start is bigger than the end, return -1 as it can't calculate the result
+		}
+		else if(end - start <=1) {
+			return -1; //if the end minus the start is 1 or lower, return -1 as it can't calculate the result
+		}
+		
+		for(int i = start + 1; i < end; i++) { //when start+1 is lower than the end
+			sumOfSquares += i; //sumOfSquares = itself + i
+		}		
+		
 		return sumOfSquares;
 	}