Fundamentals of Computing Practice Questions
Course Introduction
Fundamentals of Computing introduces students to the essential concepts and tools that underpin modern computer science. The course covers key topics such as algorithms, data structures, computer organization, programming principles, software development, and basic problem-solving techniques. Students will gain hands-on experience through programming exercises, typically using languages such as Python or Java, to develop logical thinking and computational skills. By exploring the theoretical and practical aspects of computing, this course prepares students for more advanced study and provides a solid foundation for understanding how software and hardware systems function in various real-world applications.
Recommended Textbook
Starting Out with Java Early Objects 5th Edition by Tony Gaddis
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Chapter 1: Introduction to Computers and Java
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Sample Questions
Q1) The purpose of validating the results of the program is to
A) determine if the program solves the original problem.
B) correct runtime errors.
C) create a model of the program.
D) correct syntax errors.
Answer: A
Q2) A solid-state drive has no moving parts and operates faster than a traditional disk drive.
A)True
B)False
Answer: True
Q3) Whereas ________ is centered on creating procedures, ________ is centered on creating objects.
A) procedural programming, object-oriented programming
B) object-oriented programming, procedural programming.
C) routine programming, method programming,
D) procedural programming, class programming.,
Answer: A
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Chapter 2: Java Fundamentals
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Sample Questions
Q1) Which of the following statements will correctly convert the data type, if x is a float and y is a double?
A) x = float y;
B) x = <float>y;
C) x = (float)y;
D) x = y;
Answer: C
Q2) Which of the following is not a rule that must be followed when naming identifiers?
A) After the first character, you may use the letters a-z, A-Z, an underscore, a dollar sign, or digits 0-9.
B) Identifiers can contain spaces.
C) Uppercase and lowercase characters are distinct.
D) The first character must be one of the letters a-z, A-Z, an underscore or a dollar sign. Answer: B
Q3) The System.out.printf method allows you to format output in a variety of ways.
A)True
B)False
Answer: True
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Chapter 3: A First Look at Classes and Objects
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Sample Questions
Q1) A constructor is a method that
A) returns an object of the class.
B) never receives any arguments.
C) performs initialization or setup operations.
D) removes the object from memory.
Answer: C
Q2) In the blueprint/house analogy, think of a class as a blueprint that describes a house and ________ as instances of the house built from the blueprint.
A) methods
B) fields
C) objects
D) attributes
Answer: C
Q3) You use this key word to import a class.
A) import
B) assume
C) use
D) link
Answer: A
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Chapter 4: Decision Structures
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Sample Questions
Q1) What will be the value of x after the following code is executed?
Int x = 75;
Int y = 60;
If (x > y)
X = x - y;
A) 60
B) 75
C) 15
D) 135
Q2) An important style rule you should adopt for writing if statements is to write the conditionally executed statement on the line after the if statement.
A)True
B)False
Q3) In an if-else statement, if the boolean expression is false
A) no statements or blocks are executed.
B) the statement or block following the else is executed.
C) the first statement or block is executed.
D) all statements or blocks are executed.
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Chapter 5: Loops and Files
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Sample Questions
Q1) Assume that inputFile references a Scanner object that was used to open a file. Which of the following while loops shows the correct way to read data from the file until the end of the file is reached?
A) while (inputFile.nextLine == " ")
B) while (inputFile != null)
C) while (!inputFile.EOF)
D) while (inputFile.hasNext())
Q2) How many times will the following do-while loop be executed?
Int x = 11; Do
{ X += 20;
} while (x <= 100);
A) 5
B) 4
C) 3
D) 1
Q3) You can use the PrintWriter class to open a file and write data to it.
A)True
B)False
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Chapter 6: A Second Look at Classes and Objects
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Sample Questions
Q1) You may use this to compare two enum data values.
A) the ordinal method
B) the ==, >, and < operators
C) the equals and compareTo methods
D) the moreThan, lessThan, and equalsTo methods
Q2) The names of the enum constants in an enumerated data type must be enclosed in quotation marks.
A)True
B)False
Q3) If the following is from the method section of a UML diagram, which of the following statements is true?
+ equals(object2:Stock) : boolean
A) This is a public method that accepts a Stock object as its argument and returns a boolean value.
B) This is a public method that returns a reference to a String object.
C) This is a private method that receives two objects from the Stock class and returns a boolean value.
D) This is a private method that returns a boolean value.
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Chapter 7: Arrays and the ArrayList Class
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Sample Questions
Q1) What does <String> specify in the following statement?
ArrayList<String> nameList = new ArrayList<String>();
A) It specifies that String objects may not be stored in the ArrayList object.
B) It specifies that everything stored in the ArrayList object will be converted to a String object.
C) It specifies that only String objects may be stored in the ArrayList object.
D) It specifies that the ArrayList will be converted into a String array.
Q2) An array of String objects
A) is arranged the same as an array of primitive objects.
B) is compressed to 4 bytes for each element.
C) must be initialized when the array is declared.
D) consists of an array of references to String objects.
Q3) What does the following statement do?
Double[] array1 = new double[10];
A) declares array1 to be a reference to an array of double values
B) will allow valid subscripts in the range of 0 through 9
C) creates an instance of an array of 10 double values
D) All of the above
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Chapter 8: Text Processing and Wrapper Classes
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Sample Questions
Q1) You cannot assign a value to a wrapper class object.
A)True
B)False
Q2) If a string has more than one character used as a delimiter, we must write a loop to determine the tokens, one for each delimiter character.
A)True
B)False
Q3) Which of the following import statements is required to use the StringTokenizer class?
A) import java.util.Scanner
B) import java.text.DecimalFormat;
C) import java.util.StringTokenizer;
D) import javax.swing.JOptionPane;
Q4) StringBuilder objects are not immutable.
A)True
B)False
Q5) Trying to extract more tokens than exist from a StringTokenizer object will cause an error.
A)True
B)False
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Chapter 9: Inheritance
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Sample Questions
Q1) If ClassC is derived from ClassB, which is derived from ClassA, this would be an example of
A) a chain of inheritance.
B) linear inheritance.
C) multiple interfaces.
D) cascading classes.
Q2) An abstract class is not instantiated itself, but serves as a superclass for other classes.
A)True
B)False
Q3) This key word indicates that a class inherits from another class.
A) final
B) super C) implements
D) extends
Q4) You can write a super statement that calls a superclass constructor, but only in the subclass's constructor.
A)True B)False
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Chapter 10: Exceptions and Advanced File I/O
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Sample Questions
Q1) If a class has fields that are objects of other classes, those classes must implement the Serializable interface in order to be serialized.
A)True
B)False
Q2) To write data to a binary file, you create objects from the following classes:
A) File and Scanner.
B) BinaryFileWriter and BinaryDataWriter.
C) FileOutputStream and DataOutputStream.
D) File and PrintWriter.
Q3) An exception object's default error message can be retrieved using this method.
A) getMessage
B) getDefaultMessage
C) getDefaultErrorMessage
D) getErrorMessage
Q4) A class must implement the Serializable interface in order for objects of the class to be serialized.
A)True
B)False
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Chapter 11: GUI Applications Part 1
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Sample Questions
Q1) A(n) ________ is an action that takes place within a program, such as the clicking of a button.
A) event
B) selection
C) incident
D) choice
Q2) When a component is added to a region in the BorderLayout manager,
A) the component is stretched so it fills up the entire region.
B) the component retains its original size.
C) the region is resized to fit the component.
D) the region and the component are resized to fit the frame.
Q3) Programs that operate in a GUI environment must be event-driven.
A)True
B)False
Q4) If button1 references a JButton object, which of the following statements will make its background blue?
A) button1.makeBackground(Color.BLUE);
B) button1.setBackground(Color.BLUE);
C) button1.makeBackground(BLUE);
D) button1.set.Background(BLUE);
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Chapter 12: GUI Applications Part 2
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Sample Questions
Q1) To add a component to a scroll pane, you must pass a reference to the component as an argument to the JScrollPane constructor.
A)True
B)False
Q2) Which of the following file types is not supported by the ImageIcon class?
A) JPEG
B) GIF
C) BMP
D) PNG
Q3) What is the default directory for the JFileChooser constructor when you pass a String containing a valid path as an argument?
A) If you are using Windows, this will probably be the "My Documents" folder under your account.
B) If you are using UNIX, this will be your login directory.
C) Both A and B
D) None of the above
Q4) The JList and JTextArea components do not automatically display scroll bars.
A)True
B)False
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Chapter 13: Applets and More
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Sample Questions
Q1) Applets are important because they can be used to extend the capabilities of a stand-alone Java application.
A)True
B)False
Q2) For all Swing components except JApplet and JFrame, you should override this method to get a reference to the component's Graphics object.
A) paintComponent
B) paint
C) paintBase
D) repaint
Q3) Which of the following is one way to get a reference to the Graphics object for an AWT component or a class that extends JApplet or JFrame?
A) Override the component's paint method.
B) Create a static instance of the Graphics object.
C) Pass an instance of the Graphics object as an argument to the component's constructor.
D) Create an instance of any class that extends the Graphics2D class.
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Chapter 14: Creating GUI Applications with JavaFX
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Sample Questions
Q1) A window in a GUI commonly consists of several ________ that present data to the user and/or allow interaction with the application.
A) modules
B) components
C) elements
D) buttons
Q2) Like RadioButtons, CheckBoxes may be selected or deselected at run time.
A)True
B)False
Q3) A ________ is a tree-like, hierarchical data structure that contains nodes.
A) scene graph
B) class hierarchy
C) UML diagram
D) tree graph
Q4) Even if a variable will not reference a component in the GUI, it is necessary to precede the declaration by the @FMXL annotation.
A)True
B)False
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Chapter 15: Recursion
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Sample Questions
Q1) This occurs when method A calls method B, which in turn calls method A.
A) dynamic recursion
B) linear recursion
C) direct recursion
D) indirect recursion
Q2) A method is called from the main method for the first time. It then calls itself seven times. What is the depth of recursion?
A) 1
B) 7
C) 8
D) 6
Q3) A recursive method can have no more than one base case.
A)True
B)False
Q4) Which of the following problems can be solved recursively?
A) greatest common denominator
B) towers of Hanoi
C) binary search
D) All of the Above
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Chapter 16: Databases
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Sample Questions
Q1) A qualified column name takes the following form:
A) ColumnName.TableName
B) TableName.ColumnName
C) RowName.TableName
D) DatabaseURL.ColumnName
Q2) This SQL statement can be used to create a database table.
A) NEW TABLE
B) MAKE TABLE
C) BUILD TABLE
D) CREATE TABLE
Q3) Although SQL is a language, you don't use it to write applications.
A)True
B)False
Q4) The DBMS works directly with the data, and sends the results of operations
A) back to the application.
B) along the encrypted data path.
C) to the unified data component.
D) back to the Web server.
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