Programming Principles
Exam Practice Tests
Course Introduction
This course offers an introduction to the foundational principles of computer programming, focusing on problem-solving, algorithmic thinking, and the basic constructs of programming languages. Students will learn about variables, data types, control flow (such as conditionals and loops), functions, and basic data structures. By working through hands-on exercises and projects, learners will develop the skills necessary to write clear, efficient, and maintainable code. Emphasis is placed on both the theoretical concepts and practical applications, equipping students to approach programming challenges with confidence and analytical rigor.
Recommended Textbook
Starting Out with Java Early Objects 5th Edition by Tony Gaddis
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16 Chapters
620 Verified Questions
620 Flashcards
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Chapter 1: Introduction to Computers and Java
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) The original name for Java was
A) *7.
B) Oak.
C) HotJava.
D) Elm.
Answer: B
Q2) Suppose you are at an operating system command line, and you are going to use the following command to compile a program: javac MyClass.java
Before entering the command, you must
A) close all other Windows on your computer system.
B) make sure you are in the same directory or folder where the MyClass.java file is located.
C) execute the java.sun.com program.
D) save the program with the .comp extension.
Answer: B
Q3) Logical errors are mistakes that cause the program to produce erroneous results. A)True
B)False
Answer: True
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Chapter 2: Java Fundamentals
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Sample Questions
Q1) When you call one of the Scanner class's methods to read a primitive value, such as nextInt or nextDouble, and then call the nextLine method to read a string, an annoying and hard-to-find problem can occur.
A)True
B)False Answer: True
Q2) Programming style includes techniques for consistently putting spaces and indentation in a program so visual cues are created.
A)True
B)False Answer: True
Q3) This is a value that is written into the code of a program.
A) Literal
B) Assignment statement
C) Operator
D) Variable Answer: A
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Chapter 3: A First Look at Classes and Objects
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40 Flashcards
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Sample Questions
Q1) 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
Q2) UML diagrams do not contain A) fields.
B) methods.
C) class names.
D) object names.
Answer: D
Q3) The scope of a local variable is A) inside the parentheses of a method header.
B) the method in which they are defined.
C) inside the class, but not inside any method.
D) the entire class.
Answer: B
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Page 5
Chapter 4: Decision Structures
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Sample Questions
Q1) Unicode is an international encoding system that is extensive enough to represent all the characters of all the world's alphabets.
A)True
B)False
Q2) A flag may have the values
A) defined or undefined.
B) of any range of numbers.
C) true or false.
D) of any Unicode character.
Q3) What will be displayed after the following statements are executed?
Int hours = 30;
Double pay, payRate = 10.00; Pay = hours <= 40 ? hours * payRate : hours * payRate * 2.0; System.out.println(pay);
A) 300.0
B) 600.0
C) 400.0
D) The code contains an error and will not compile.
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6
Chapter 5: Loops and Files
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Sample Questions
Q1) In all but rare cases, loops must contain within themselves
A) nested loops.
B) a way to terminate.
C) arithmetic operators.
D) if statements.
Q2) Assuming that inputFile references a Scanner object that was used to open a file, which of the following statements will read an int from the file?
A) int number = inputFile.next();
B) int number = inputFile.integer();
C) int number = inputFile.readInt();
D) int number = inputFile.nextInt();
Q3) 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())
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Chapter 6: A Second Look at Classes and Objects
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Sample Questions
Q1) You cannot use the fully-qualified name of an enum constant for A) a case expression.
B) an argument to a method.
C) a boolean expression.
D) All of the above.
Q2) Overloading is
A) writing a method that does too much processing.
B) writing a program that is too large to fit in memory.
C) having two or more methods with the same name, but different signatures.
D) having two or more methods with the same signature.
Q3) You can declare an enumerated data type inside of a method.
A)True
B)False
Q4) ________ is the term for the relationship created by object aggregation.
A) "Has a"
B) Inner class
C) "Is a"
D) One-to-many
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Chapter 7: Arrays and the ArrayList Class
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Sample Questions
Q1) When an array of objects is declared, but not initialized, the array values are set to 0.
A)True
B)False
Q2) To return an array of long values from a method, use this as the return type for the method.
A) long[ARRAY_SIZE]
B) array
C) long[]
D) long
Q3) The sequential search algorithm
A) returns 1 if the value being search for is found, otherwise it returns -1.
B) requires the array to be in ascending ordered.
C) uses a loop to sequentially step through an array, starting with the first element.
D) All of the above
Q4) The Java compiler does not display an error message when it processes a statement that uses an invalid subscript.
A)True
B)False
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Chapter 8: Text Processing and Wrapper Classes
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40 Flashcards
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Sample Questions
Q1) Most of the String comparison methods are case sensitive.
A)True
B)False
Q2) What will be displayed after the following statements are executed?
StringBuilder strb = new StringBuilder(12);
Strb.append("The cow ");
Strb.append("jumped over the ");
Strb.append("moon."); System.out.println(strb);
A) The cow jumped over the moon.
B) The cow jumped over the Moon.
C) The cow jump
D) 12The cow jumped over the moon.
Q3) Which of the following statements converts an int variable named number to a string and stores the value in the String object variable named str?
A) String str = Integer.toString(number);
B) String str = number.Integer.toString(str);
C) String str = integer(number);
D) String str = integer.toString(number);
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Chapter 9: Inheritance
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Sample Questions
Q1) Because the subclass is more specialized than the superclass, it is sometimes necessary for the subclass to replace inadequate superclass methods with more suitable ones.
A)True
B)False
Q2) Which of the following statements correctly specifies two interfaces?
A) public class ClassA implements [Interface1, Interface2]
B) public class ClassA implements (Interface1, Interface2)
C) public class ClassA implements Interface1 | Interface2
D) public class ClassA implements Interface1, Interface2
Q3) You show inheritance in a UML diagram by connecting two classes with a line that has an open arrowhead that points to the subclass.
A)True
B)False
Q4) Because every class directly or indirectly inherits from the Object class, every class inherits the Object class's members.
A)True
B)False
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11
Chapter 10: Exceptions and Advanced File I/O
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Sample Questions
Q1) 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.
Q2) If a program does not handle an unchecked exception, what is the result?
A) The program must handle the exception.
B) The program is halted and the default exception handler handles the exception.
C) The exception is ignored.
D) A compiler error will occur.
Q3) When you write a method that throws a checked exception, you must A) override the default error method.
B) ensure that the error will occur at least once each time the program is executed. C) have a throws clause in the method header.
D) use each class only once in a method.
Q4) The throws clause causes an exception to be thrown.
A)True
B)False
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Chapter 11: GUI Applications Part 1
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40 Flashcards
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Sample Questions
Q1) In GUI terminology, a container that can be displayed as a window is known as a A) buffer.
B) message dialog.
C) Swing package.
D) frame.
Q2) The process of connecting an event listener object to a component is called ________ the event listener.
A) coupling
B) priming
C) registering
D) installing
Q3) Swing components are part of the javax.swing package.
A)True
B)False
Q4) ________, which may appear alone or in groups, allow the user to make yes/no or on/off selections.
A) Active panels
B) Toggle buttons
C) Radio buttons
D) Check boxes
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Chapter 12: GUI Applications Part 2
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Sample Questions
Q1) When you create an instance of the JList class,
A) the text field will be editable.
B) you pass an array of objects to the constructor.
C) you must indicate the maximum number of list items the user may select at any one time.
D) you must indicate a selection mode.
Q2) What does the following statement do?
JTextArea textField = JTextArea(message, 25, 15);
A) It creates a text area with 25 rows and 15 columns that will initially display the text "message."
B) It creates a text area with 25 columns and 15 rows that will initially display the text stored in the String object referenced by message.
C) It creates a text area with 25 columns and 15 rows that will initially display the text stored in the JTextArea object referenced by textField.
D) It creates a text area with 25 rows and 15 columns that will initially display the text stored in the String object referenced by message.
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Chapter 13: Applets and More
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Sample Questions
Q1) To make a Web page, you create a text file that contains HTML instructions, which are known as ________, as well as the text that should be displayed on the Web page.
A) markups
B) hypertext
C) labels
D) tags
Q2) Which of the following statements would you write in an HTML document to display the text "History" as a level one header?
A) <h1>History</h1>
B) <title>History</title>
C) <h6>History</h6>
D) <head>History</head>
Q3) In HTML, the <h1></h1> tag marks a document's head section, whereas the <head></head> tag marks a header, which is large bold text.
A)True
B)False
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Page 15
Chapter 14: Creating GUI Applications with JavaFX
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Sample Questions
Q1) Which of the following does not belong in a JavaFX scene graph?
A) trunk node
B) branch node
C) leaf node
D) root node
Q2) This is a markup language that describes the components in a JavaFX scene graph.
A) SGML
B) HTML
C) XML
D) FXML
Q3) Although these are often displayed in groups, they are not usually grouped in a toggle group like RadioButtons are.
A) Labels
B) CheckBoxes
C) Buttons
D) TextFields
Q4) In a scene graph, the root node and branch nodes can have children, but leaf nodes cannot.
A)True
B)False
Page 16
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Chapter 15: Recursion
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Sample Questions
Q1) A problem can be solved recursively if it can be broken down into successive smaller problems that are identical to the overall problem.
A)True
B)False
Q2) Whereas a recursive algorithm might result in faster execution time, the programmer might be able to design an iterative algorithm faster.
A)True
B)False
Q3) The number of times that a method calls itself is known as
A) the call count.
B) the cyclic identity.
C) the method heap.
D) the depth of recursion.
Q4) 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
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Chapter 16: Databases
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40 Verified Questions
40 Flashcards
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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) Which Statement interface method should be used to execute an INSERT statement?
A) executeUpdate
B) executeStatement
C) executeQuery
D) executeSQL
Q3) What SQL operator can be used to disqualify search criteria in a WHERE clause?
A) AND
B) NOT
C) EXCLUDE
D) NOR
Q4) SQL statements that are stored in the DBMS are called resident queries.
A)True
B)False
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