Web Design and Development MCQs with Answers
Practice important Web Design and Development MCQs with answers and explanations.
Chapter: 17
Q281:
What is the purpose of the next() method in ResultSet?
A. Moves the cursor to the next row
B. Retrieves the previous row's data
C. Moves the cursor to the first row
D. Moves the cursor to the last row
Correct Answer:
A
Chapter: 17
Q282:
How can you retrieve the column name using ResultSetMetaData?
A. By calling getColumnLabel(int)
B. By calling getColumnName(int)
C. By calling getColumnType(int)
D. By calling getColumnDisplaySize(int)
Correct Answer:
B
Chapter: 18
Q283:
What does the getDatabaseProductVersion() method return?
A. The version number of the database product
B. The name of the JDBC driver
C. The maximum character size of a column
D. The SQL type for the column
Correct Answer:
A
Chapter: 18
Q284:
Which method is used to check if the database is read-only?
A. isReadOnly()
B. getDriverName()
C. getDatabaseProductName()
D. getDatabaseProductVersion()
Correct Answer:
A
Chapter: 18
Q285:
What is the benefit of a Type-4 JDBC driver compared to Type-1?
A. Better performance and platform independence
B. It uses a middle-tier server
C. It translates JDBC calls into ODBC calls
D. It uses native APIs specific to the database
Correct Answer:
A
Chapter: 18
Q286:
What is the primary purpose of the paintComponent(Graphics g) method?
A. Paints the component's border
B. Paints the component's background and custom drawings
C. Paints all child components
D. Clears the entire component
Correct Answer:
B
Chapter: 18
Q287:
Which method is called to paint the component's border?
A. paintComponent()
B. paintBorder()
C. paintChildren()
D. repaint()
Correct Answer:
B
Chapter: 18
Q288:
What is the correct order of method calls during component painting?
A. paintComponent() → paintBorder() → paintChildren()
B. paintBorder() → paintComponent() → paintChildren()
C. paintChildren() → paintBorder() → paintComponent()
D. paintComponent() → paintChildren() → paintBorder()
Correct Answer:
A
Chapter: 18
Q289:
In the example code, which method is used to draw a rectangle?
A. drawRect()
B. fillOval()
C. drawString()
D. setColor()
Correct Answer:
A
Chapter: 18
Q290:
What does the super.paintComponent(g) call do in the paintComponent method?
A. Paints the component's border
B. Paints the background of the component
C. Sets the color of the graphics object
D. Draws the custom shapes on the component
Correct Answer:
B
Chapter: 18
Q291:
Which class provides the method fillOval()?
A. Graphics
B. Graphics2D
C. JPanel
D. JFrame
Correct Answer:
B
Chapter: 18
Q292:
How do you add a custom JPanel to a JFrame in the provided code example?
A. Use add(p) on the JPanel object
B. Use getContentPane().add(p) on the JFrame object
C. Directly set the JPanel as the content pane
D. Use addPanel(p) on the JFrame object
Correct Answer:
B
Chapter: 18
Q293:
What does the g2.drawString("Hello World", 120, 50) method do in the code?
A. Draws a string at coordinates (120, 50)
B. Draws a rectangle at coordinates (120, 50)
C. Fills an oval at coordinates (120, 50)
D. Changes the color of the graphics object
Correct Answer:
A
Chapter: 18
Q294:
What is the role of the paintChildren(Graphics g) method?
A. Paints the component's children components
B. Paints the component's border
C. Paints the background of the component
D. Paints the component's custom graphics
Correct Answer:
A
Chapter: 18
Q295:
What should be overridden to perform custom painting in Swing components?
A. paintBorder()
B. paintComponent()
C. paintChildren()
D. repaint()
Correct Answer:
B
Chapter: 18
Q296:
What is the default behavior of the paintComponent method if not overridden?
A. It paints a default background
B. It draws a default rectangle
C. It does nothing
D. It paints a default border
Correct Answer:
A
Chapter: 18
Q297:
In the example provided, how is MyPanel added to the JFrame?
A. By calling c.add(p) on the JFrame object
B. By calling add(p) on the JPanel object
C. By calling f.add(p) on the JFrame object
D. By calling setContentPane(p) on the JFrame object
Correct Answer:
A
Chapter: 19
Q298:
Which method of Graphics2D is used to change the drawing color?
A. setColor()
B. drawString()
C. fillOval()
D. drawRect()
Correct Answer:
A
Chapter: 19
Q299:
To create DataBaseMetaData object we write following line of code
A. DataBaseMetaData db = con.getMeataData();
B. ResultSetMetaData rsmd = rs.getMetaData();
C. ResultSetMetaData rsmd = rs.setMetaData();
D. DataBaseMetaData db = con.setMeataData();
Correct Answer:
A
Chapter: 19
Q300:
What is the primary function of the paintBorder() method?
A. Paints the component's border
B. Paints the component's background
C. Paints the component's children components
D. Handles repaint events for the component
Correct Answer:
A