Where the char represents a single character, a string represents a collection of them acting as a single entity. On the “old days” a string was an array of characters, however, now a days, we have our own data type for them. A string is not a primitive data type, but an included class that…
The char data type is used to store a single character. The literal value is stored within a set single quotes. Old style C strings were actually an array of chars, but now we have our own string data type. Even when we store a number in a char, it is the char value, not…
C++ provides many useful math function inside the cmath header. As with Python, in C/C++, a function is a collection of statements which can perform a task with a single call, instead of having to write them all out. We’ll look at how to create our own functions later on. Trigonometric Functions Function Description sin(radians)…
A switch statement executes statements based upon the value of a variable. It is useful to replace a series of if statements, if the if statements are all looking for an equality value. The general form of this is below: Your variable must be an integer value, and must be enclosed in parentheses. The case…
If you want to do more complex decisions in C++ there are a couple of ways to accomplish this. We’ll look at three that are fairly common. Nested If Statements Inside of an if statement true block, or the else block for that matter, you can nest another if statement. This allows you to build…
C/C++ has a couple of different ways to perform selections. We’re going to start looking at some of these. As with most languages, C./C++ has a Boolean data type, called bool. This can be used directly with your conditions, or separately to store data. Relational Operators Since we will need to compare values, C/C++ gives…
C++ gives you a lot of ways to do math, built into the language directly. Unfortunately, it can get complex – so we’re going to focus on the simple stuff. The order of operation in C++ is the same as in algebra, so that is easy to remember. + is addition – is subtraction *…
Identifiers An identifier is a name of a variable or function in C++. The same basic rules you had in Python exist in C++. Can’t be a reserved word/keyword Case sensitive (name, Name, and NAME are all different things) Can only be used in one context Must start with a letter May have letters, numbers,…
