Question 14 pts (TCOs 1–6) The column names that are displayed in a JTable can b

Question

Question 14 pts

(TCOs 1–6) The column names that are displayed in a JTable can be specified by using the _____ method of the DefaultTableModel.

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Question 24 pts

(TCOs 1–6) What is the output of the code below?
                   
         double num = 56.4321;
         System.out.printf("%.2f", 56.4321);

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Question 34 pts

(TCOs 1–6) The signature of a method consists of

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Question 44 pts

(TCOs 1–6) Assume int[ ] t = {1, 2, 3, 4}. What is t.length?

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Question 54 pts

(TCOs 1 ,2, and 6) If a class contains a main method, that method is executed

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Question 64 pts

(TCOs 1–6) Invoking _____ returns the first element in an ArrayList x.

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Question 74 pts

(TCO 1, 4, and 6) The maximum number of radio buttons that can be selected within a ButtonGroup is

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Question 84 pts

(TCOs 1–6) Which statements are most accurate regarding the following classes?

class A {
      private int i;
      protected int j;
}
class B extends A {
      private int k;
      protected int m;
}

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Question 94 pts

(TCOs 1–6) Suppose ArrayList x contains two strings [Beijing, Singapore]. Which of the following methods will cause the list to become [Beijing, Chicago, Singapore]?

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Question 104 pts

(TCOs 1, 5, and 6) The StringTokenizer method used to return the next field based on the delimiter character specified is

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Question 114 pts

(TCOs 1–6) Which of the following statements causes the program to terminate when closing the frame?

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Question 124 pts

(TCOs 1, 5, and 6) Which type of exception occurs if the write method of BufferedWriter cannot write data to the file?

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Question 134 pts

(TCOs 1–6) What layout manager should you use so that every component occupies the same size in the container?

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Question 144 pts

(TCOs 1–6) The event handler (e.g., actionPerformed) is a method in

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Question 154 pts

(TCOs 1–6) The _____ method of JOptionPane is used to display a message dialog box.

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Question 164 pts

(TCOs 1, 4, and 6) Menus are attached to windows by calling the _____ method.

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Question 174 pts

(TCOs 1–6) Suppose you wish to provide an accessor method for a double instance variable named percent, what should the signature method be?

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Question 184 pts

(TCOs 1, 4, and 6) The method used to add panels to a JTabbedPane is

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Question 194 pts

(TCOs 1–6) A constructor cannot

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Question 204 pts

(TCOs 1–6) Given the declaration Circle x = new Circle(), which of the following statements is most accurate?

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Question 214 pts

(TCOs 1, 5, and 6) To add a database driver to a NetBeans project, you can add the JAR file for the driver to what folder?

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Question 224 pts

(TCOs 1–6) _____ represents an entity in the real world that can be distinctly identified.

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Question 234 pts

(TCOs 1–6) To execute the query "select * from Address" using the Statement object named stmt that has been properly configured with a database connection, use

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Question 244 pts

(TCOs 1–6) Suppose that your program accesses a MySQL database. Which of the following statements is false?

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Question 254 pts

(TCOs 1–6) Which of the following statements is false?

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Question 264 pts

(TCOs 1–6) Which method can be used to write data to a text file opened with the BufferedWriter object outfile?

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Question 274 pts

(TCOs 1–6) Which type of exception occurs when creating a BufferedReader object for a nonexistent file?

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Question 284 pts

(TCOs 1–6) Which class can be used to write data into a text file?

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Question 294 pts

(TCOs 1–6) Result set meta data are retrieved through

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Question 304 pts

(TCOs 1–6) Clicking a JCheckBox object generates _____ events.

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Question 314 pts

(TCOs 1–6) The method _____ gets the contents of the text field txtName.

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Question 324 pts

(TCOs 1–6) The method _____ appends a string s into the text area jta.

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Question 334 pts

(TCOs 1–6) The method _____ gets the text (or caption) of the button btnAdd.

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Question 344 pts

(TCOs 1–6) A JList object can be populated with data stored in a(n) _____ object.

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Question 354 pts

(TCOs 1–6) The _____ method of a check box returns true if that button is “checked”.

Explanation / Answer

Hi,

Below is the solution-

Ans 14 - JTable
Ans 24 - 56.43
Ans 34 - method name and parameter list.
Ans 44 - 4
Ans 54 - public
Ans 64 - x.get(0)
Ans 74 - 3 ( There can be only one radiobutton that can be selected from the group)
Ans 84 - The program has a runtime NullPointerException because test is null while executing test.x.
Ans 94 - x.add(1, "Chicago")
Ans 104 - tokens = new StringTokenizer(inputString, "%");
Ans 114 - JFrame.super(“Title here”);
Ans 124 - FileIOException
Ans 134 - a GridLayout
Ans 144 - getEventObject()
Ans 154 - String.
Ans 164 - setJMenuBar
Ans 174 - mutator, accessor.
Ans 184 - addPanel.
Ans 194 - no-argument constructor.
Ans 204 - an instance method.

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