Making variables useful with operators

Of course, in almost any game, we are going to need to do things with these values. We manipulate variables with operators.

As we did with variable types, let's discuss the most used operators in this book.

Most used operators in this book

Here is a list of the most common Java operators we will use in this book that allow us to manipulate variables. You do not need to memorize them as we will look at every line of code as and when we use them for the first time. We have already seen the first operator when we initialized our variables =, but we will see it again while it is being a bit more adventurous.

Once you have seen one operator you can guess what the others do but some examples of each will help to get familiar with them:

• The assignment operator (=): This makes the variable to the left of the operator the same as the value or variable to the right. For example:
  • score = 1000;
  • highScore = score;
• The addition operator (+): This adds together values...