A good answer might be:

• Can an object reference variable exist that without referring to an object?
  • Yes, a variable can be declared without initialization: String myString; Also, a reference can be set to null.
• Can an object exist without an object reference variable referring to it?
  • Yes, as seen in the previous example. Such objects are temporary.

Here is another method of the String class:

    public boolean startsWith(String  prefix); 

The startsWith() method tests if one String is the prefix of another. This is frequently needed in computer programs (although, as usual, the example program is too short to be useful):

class prefixTest
{
  public static void main ( String args[] )
  {
     String burns = "My love is like a red, red rose.";

     if ( burns.startsWith( "My love" ) )
       System.out.println( "Prefix 1 matches." );
     else
       System.out.println( "Prefix 1 fails." );

     if ( burns.startsWith( "my love" ) )
       System.out.println( "Prefix 2 matches." );
     else
       System.out.println( "Prefix 2 fails." );

     if ( burns.startsWith( "  My love" ) )
       System.out.println( "Prefix 3 matches." );
     else
       System.out.println( "Prefix 3 fails." );

     if ( burns.startsWith( "  My love".trim() ) )
       System.out.println( "Prefix 4 matches." );
     else
       System.out.println( "Prefix 4 fails." );

  }

}

Notice how trim() is used in the last if statement.

QUESTION 14:

What does the program write to the monitor?