In order to ensure a unique XML namespace you should use:
a) your Social Security Number
b) your address
c) an appropriate web URL
d) your last name
c) an appropriate web URL
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A stockbroker wants an application that will display a client’s stock portfolio (Fig. 26.37). All the companies that the user holds stock in should be displayed in a JComboBox when the application is loaded. When the user selects a company from the JComboBox and clicks the Stock Information JButton, the stock information for that company should be displayed in output JTextFields. The provided stocks database contains one table, stockInformation (Fig. 26.38), which has four columns—stockName, stockSymbol, shares and price. The values stored in the stockName and stockSymbol col- umns are Strings. The values stored in the shares column are ints. The values stored in the price column are doubles.
a) Copying the template to your working directory. Copy the C:Examples Tutorial26ExercisesStockPortfolio directory to your C:SimplyJava directory.
b) Copying the database to your working directory. Copy the stocks database directory from C:ExamplesTutorial26ExercisesDatabases to your C:Simply- JavaStockPortfolio directory.
c) Opening the template file. Open the StockPortfolio.java file in your text editor. d) Declaring instance variables for database processing. In line 45, declare three
instance variables—myConnection, myStatement and myResultSet—of types Con-
nection, Statement and ResultSet, respectively.
e) Adding a database connection and creating a Statement object. In line 52 in the StockPortfolio constructor, insert statements that load the database driver, connect to the stocks database and create a Statement for submitting SQL to the database. Assume that the driver class name and JDBC URL are passed to the constructor
Examples of ________ data for the customer are: the customer name, address, and phone number
Fill in the blank(s) with correct word
If a problem arises during backup, the Backup and Restore applet will inform you and provide options for this resolution. Which one of these is not a problem for which the Backup and Restore applet will provide an alert?
a. Insufficient RAM b. Insufficient backup disk space c. Unavailable network location d. Open files might be skipped
What is the value of X and what is the condition of the Do…Loop when execution ends in the following pseudo code? X = 1 Do ‘ This is a comment Print X; Loop
A. X = 1, the Do…Loop is endless. B. X = 1, the Do…Loop is not endless. C. X = 0, the Do…Loop is endless. D. X = 0, the Do…Loop is not endless.