Category: Root

EmployeeCreation.java: Make a simple “employees” table using the database utilities

package cwp; import java.sql.*; /** Make a simple “employees” table using DatabaseUtilities.  */ public class EmployeeCreation {   public static Connection createEmployees(String driver,                                            String url,                                            String username,                                            String password,                                            boolean close) {     String format =       “(id int, firstname varchar(32), lastname varchar(32), ” +       “language varchar(16), salary float)”;     …

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extract relevant data from a DBResults

# QueryViewer.java  An interactive database query viewer. Connects to the specified Oracle or Sybase database, executes a query, and presents the results in a JTable. Uses the following file:     * DBResultsTableModel.java Simple class that tells a JTable how to extract relevant data from a DBResults object (which is used to store the results from …

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পিএইচপি কুইজ । PHP Quiz

[slickquiz id=15]

EmployeeTest2.java: A test case for the database utilities. Prints results formatted as an HTML table.

package cwp; import java.sql.*; /** Connect to Oracle or Sybase and print “employees” table  *  as an HTML table.  *    */ public class EmployeeTest2 {   public static void main(String[] args) {     if (args.length < 5) {       printUsage();       return;     }     String vendorName = args[4];     int vendor = DriverUtilities.getVendor(vendorName); …

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DBResults.java: Class to store completed results of a JDBC Query. Differs from a ResultSet in several ways

# DBResults.java  Class to store completed results of a JDBC Query. Differs from a ResultSet in several ways:     * ResultSet doesn?t necessarily have all the data; reconnection to database occurs as you ask for later rows.     * This class stores results as strings, in arrays.     * This class includes DatabaseMetaData (database product …

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DatabaseUtilities.java: Several general-purpose utilities discussed and used in the chapter.

package cwp; import java.sql.*; /** Three database utilities:  *   1) getQueryResults. Connects to a database, executes  *      a query, retrieves all the rows as arrays  *      of strings, and puts them inside a DBResults  *      object. Also places the database product name,  *      database version, and the names of all the columns  *      into the …

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EmployeeTest.java: A test case for the database utilities. Prints results in plain text.

package cwp; import java.sql.*; /** Connect to Oracle or Sybase and print “employees” table.  *    */ public class EmployeeTest {   public static void main(String[] args) {     if (args.length < 5) {       printUsage();       return;     }     String vendorName = args[4];     int vendor = DriverUtilities.getVendor(vendorName);     if (vendor == DriverUtilities.UNKNOWN) …

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Example Java Programs

HelloWorld.java public class HelloWorld {     // method main(): ALWAYS the APPLICATION entry point     public static void main (String[] args) {     System.out.println (“Hello World!”);     } } // Print Today’s Date import java.util.*; public class HelloDate {     public static void main (String[] args) {     System.out.println (“Hello, it’s: “);     System.out.println(new Date()); …

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জাভাস্ক্রিপ্ট কুইজ । JavaScript Quiz

[slickquiz id=14]

FruitCreation.java: Creates a simple table named fruits in either an Oracle or a Sybase database.

FruitCreation.java Creates a simple table named fruits in either an Oracle or a Sybase database. package cwp; import java.sql.*; /** Creates a simple table named “fruits” in either  *  an Oracle or a Sybase database.  *    */ public class FruitCreation {   public static void main(String[] args) {     if (args.length < 5) { …

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