Explain what the , , and tags are and how they are used. What kinds of tables use them most often?
What will be an ideal response?
HTML supports three row groups: one to mark the header rows, another for the body rows, and a third for the footer rows. The syntax to create these three row groups is
table rows
table rows
table rows
where table rows are rows from the Web table. For example, the following code marks two rows as belonging to the table header row group:
KPAF Programs
Time
Program
Order is important. The thead element must appear first, and then the tfoot element, and finally the tbody element. A table can contain only one thead element and one tfoot element, but it can include any number of tbody elements. The reason the table body group appears last, rather than the footer group, is to allow the browser to render the footer before receiving what might be numerous groups of table body rows.
One purpose of row groups is to allow you to create different styles for groups of rows in your table. Any style that you apply to the thead, tbody, or tfoot element is inherited by the rows those elements contain. Row groups also are used for tables in which table body contents are made up of imported data from external data sources such as databases or XML documents. In those situations, a single table can span several Web pages, with different imported content displayed in the table body in each page but with the same table header and table footer bracketing each page of content.
Computer Science & Information Technology
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The Task Bag is intended to be used by cooperating clients, some of which add pairs (describing tasks) and others of which remove them (and carry out the tasks described). When a client is informed that no matching pair is available, it cannot continue with its work until a pair becomes available. Define an appropriate callback interface for use in this situation.
What will be an ideal response?
Computer Science & Information Technology
Which of the following statements correctly rotates the button 45 degrees counterclockwise?
a. button.setRotate(45);
b. button.setRotate(Math.toRadians(45));
c. button.setRotate(360 - 45);
d. button.setRotate(-45);
Computer Science & Information Technology
________ view allows you to make changes to the form while viewing the data at the same time
Fill in the blank(s) with correct word
Computer Science & Information Technology
A primary key may use a(n) ________ data type—a generated primary key that is automatically incremented each time a record is added
Fill in the blank(s) with correct word
Computer Science & Information Technology
table rows
table rows
table rows
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The Task Bag is intended to be used by cooperating clients, some of which add pairs (describing tasks) and others of which remove them (and carry out the tasks described). When a client is informed that no matching pair is available, it cannot continue with its work until a pair becomes available. Define an appropriate callback interface for use in this situation.
What will be an ideal response?
Which of the following statements correctly rotates the button 45 degrees counterclockwise?
a. button.setRotate(45); b. button.setRotate(Math.toRadians(45)); c. button.setRotate(360 - 45); d. button.setRotate(-45);
________ view allows you to make changes to the form while viewing the data at the same time
Fill in the blank(s) with correct word
A primary key may use a(n) ________ data type—a generated primary key that is automatically incremented each time a record is added
Fill in the blank(s) with correct word