End of the Chapter

If you feel equal to the task, review the following topics.

• data type Data type.
• data, primitive vs. objects Primitive data types vs. objects.
• string, picture of Picture of a String object.
• assignment operator, two steps The two steps of an assignment operator.
• object reference, definition Definition of object reference.
• object reference, use of What each type of variable contains, and how each type is used.
• garbage Garbage and garbage collection.
• reference variable, assignment to Assigning a new value to a reference variable.
• == operator, with object references The == operator and reference variables.
• alias Two references to one object.
• string literal String literals.
• equals() method equals() method.

The next chapter continues the discussion of objects and classes.