We did an in-class code demo in this class. See the lecture code repository for this section for the completed example.

Today's example showed,

• how to declare a local variable,

chapter1.Terrarium myTerrarium;

• how assign a value to a variable,

myTerrarium = new chapter1.Terrarium();

• to call a method on the object referred to by the variable,

myTerrarium.add(new chapter1.Ant())

• explained that the value of a new + constructorexpression is a reference to an object,
• explained that object references can be stored in variables, and
• the value of a variable is the reference it stores.