Construct a duck

- [Instructor] I've already created a duck class … and I'm going to use it … to instantiate some different kinds of ducks. … So you can see here, the duck has member variables of name, … life expectancy, and favorite food, and two methods. … To create different instances of a duck, … I need a constructor. … I'm going to auto generate a constructor … with some help from Eclipse. … Okay, Eclipse has made me this constructor … and you can see that in the parentheses, … it has all of the member variables. … Sometimes they're called fields … and sometimes they're called instance variables. … Now that I have my constructor, … it's time to go make some ducks. … They're going to live in a pond. … You're probably familiar with how to make a variable. … It follows this pattern. … First you have the type. … Then you have a name. … And then you set it equal to something. … Like that. … Well using constructors is very similar. … The only difference is we're going to use the word new here … and then we need to repeat the type. …