What are the four categories of linear implementations of tables?
What will be an ideal response?
The four categories are:
• unsorted, array based
• unsorted, reference based
• sorted (by search key), array based
• sorted (by search key), reference based
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Which constants are used to indicate that a ResultSet is scrollable, insensitive to changes and read only?
a. TYPE_SCROLLABLE_INSENSITIVE, CONCUR_READ_ONLY. b. TYPE_SCROLLABLEINSENSITIVE, CONCUR_READONLY. c. TYPE_SCROLL_INSENSITIVE, CONCUR_READ_ONLY. d. TYPE_SCROLL_INSENSITIVE, CONCUR_READONLY.
(Vending Machine GUI) In this exercise, you will customize the properties of several JLabels that display images (as shown in Fig. 2.43).
a) Copying the template to your working directory. Copy the C:Examples Tutorial02ExercisesVendingMachine directory to the C:SimplyJava directory.
b) Opening the Command Prompt window and changing directories. Open the Com- mand Prompt by selecting Start > Programs > Accessories > Command Prompt. Change to your working directory by typing cd C:SimplyJavaVendingMachine, then pressing Enter.
c) Compiling the template application. Compile your application by typing the com- mand javac VendingMachine.java, then pressing Enter.
d) Running the template application. Run the application by typing java Vending- Machine. The GUI of the VendingMachine template application should appear as shown in Fig. 2.44.
e) Closing the application. Close the running application by clicking its close button.
This returns
________ are used to guide you through complex tasks
Fill in the blank(s) with correct word
The background of an Excel Worksheet is always white
Indicate whether the statement is true or false