Which of the following settings of a timer's Interval property will raise a timer event every 5 seconds?
(A) 5
(B) 5000
(C) 5 seconds
(D) 5000 milliseconds
(D) 5000 milliseconds
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Reference-type variables (called references) store ________ in memory.
a. the value of an object b. a copy of an object c. the location of an object d. the size of an object
Consider a class PersonAddress that represents an entry in an address book. Its attributes are
• The first name of the person • The last name of the person • The e-mail address of the person • The telephone number of the person It will have methods to • Access each attribute • Change the e-mail address • Change the telephone number • Test whether two instances are equal based solely on name a. Write a method heading for each method. b. Write preconditions and postconditions for each method. c. Write some Java statements that test the class. d. Implement the class.
This switch statement should determine whether an int is even or odd. Find the error(s) in the following code:
``` 1 switch ( value % 2 ) 2 { 3 case 0: 4 outputJTextField.setText( "Even Integer" ); 5 6 case 1: 7 outputJTextField.setText( "Odd Integer" ); 8 break; 9 10 } // end switch ```
An enclosure notation is keyed ____.
A. below the copy notation B. below the complimentary close C. below the reference initials D. below the writer's name and title