Two Kinds of Variables

class EgString
{

  public static void main ( String[] args )
  {
    String str;
    
    str = new String( "The Gingham Dog" );

    System.out.println( str );
  }
}

A reference variable does not contain the actual object, just a way to find it.

When the statement

System.out.println( str );

is executed, the reference in str is used to find the object and to get the data to be printed.

There are two kinds of variables in Java:

	Characteristics
primitive variable	Contains the actual data.
reference variable	Contains information on how to find the object.

There are only eight primitive types, so there are only eight types of primitive variables. Most variables in a sizeable program are reference variables.

Answer:

Two Kinds of Variables

QUESTION 7: