Professor Weiss is discussing exception handling. We were working on writing a function, called min, which returns the smaller of two numbers. We discussed three ways of doing this, considering the case of two equal numbers. We can have the function return the smaller value, and have a boolean reference parameter. Alternatively, the function could [...]

Let’s write a min function. Suppose we write the function using ternary operators: int min(int x, int y){   return x>y ? y : x; } This won’t work if the values are equal. So, let’s modify it like so: int main(int x, int y){   if(x < y) return x;   if(y < x) return y; } [...]

There are a few ways to display contents of a file. The command `cat` is one of them on vim. We want a way to take some code and reuse it in a program without using a copy function such as cat. To do that, we use a module. We’ll get to the module soon, [...]

What is meta data in regards to a list of numbers? The “header” value is meta data. To understand metadata, consider the following joke. Three people walk into a bar. The bartender says, “What is this, a joke?” The joke describes jokes. That’s meta. Now let’s apply meta to reading patterns. In a data file, [...]

Three kinds of programs: Applications: Words Processors etc. System: Provides the computer with services etc. Utility Libraries: Sets of useful functions. Let’s make an analogy with an electronic present. It’s sitting in the box. It has a 90 day warranty. Next year, if it’s defective, it can’t be returned. You should have tested it right [...]