Computer Science I Test Preparation
Course Introduction
Computer Science I is an introductory course that covers the fundamentals of computer science, including problem-solving techniques, algorithm development, and the basics of programming using high-level languages such as Python or Java. Students will learn foundational concepts such as variables, data types, control structures, functions, and simple data structures like arrays and lists. Emphasis is placed on developing logical thinking, debugging strategies, and good programming practices, providing a solid base for further study in computer science.
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
Source URL: https://quizplus.com/quiz/20979
Sample Questions
Q1) Logical errors are mistakes that cause the program to produce erroneous results.
A)True
B)False
Answer: True
Q2) A solid-state drive has no moving parts and operates faster than a traditional disk drive.
A)True
B)False
Answer: True
Q3) RAM is usually
A) an input/output device.
B) a volatile type of memory, used only for temporary storage.
C) secondary storage.
D) a static type of memory, used for permanent storage.
Answer: B
Q4) Java source files end with the .class extension.
A)True
B)False
Answer: False
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Chapter 2: Java Fundamentals
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) What will be the displayed when the following code is executed?
Final int x = 22, y = 4;
Y += x;
System.out.println("x = " + x + ", y = " + y);
A) x = 22, y = 26
B) x = 22, y = 4
C) x = 22, y = 88
D) Nothing. There is an error in the code.
Answer: D
Q2) The primitive data types only allow a(n) ________ to hold a single value.
A) class
B) literal
C) object
D) variable
Answer: D
Q3) Both character literals and string literals can be assigned to a char variable.
A)True
B)False
Answer: False
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Page 4
Chapter 3: A First Look at Classes and Objects
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) A class's responsibilities include
A) the things a class is responsible for knowing.
B) the things a class is responsible for doing.
C) both A and B
D) neither A nor B
Answer: C
Q2) The term "no-arg constructor" is applied to any constructor that does not accept arguments.
A)True
B)False
Answer: True
Q3) A method that gets a value from a class's field but does not change it is known as a mutator method.
A)True
B)False
Answer: False
Q4) The java.lang package is automatically imported into all Java programs.
A)True
B)False
Answer: True
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Chapter 4: Decision Structures
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40 Flashcards
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Sample Questions
Q1) A local variable's scope always ends at the closing brace of the block of code in which it is declared.
A)True B)False
Q2) What will be displayed when the following code is executed?
Int y = 10; If (y == 10 {
Int x = 30; X += y; System.out.println(x); }
A) 40
B) 30
C) 20
D) The code contains an error and will not compile.
Q3) When testing for character values, the switch statement does not test for the case of the character.
A)True B)False
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Chapter 5: Loops and Files
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) When working with the PrintWriter class, which of the following import statements should you have near the top of your program?
A) import javax.swing.*;
B) import javac.io.*;
C) import java.io.*;
D) import java.file.*;
Q2) What will be the value of x after the following code is executed?
Int x, y = 15;
X = y--;
A) 14
B) 16
C) 0
D) 15
Q3) 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();
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Page 7
Chapter 6: A Second Look at Classes and Objects
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) Enumerated types have this method, which returns the position of an enum constant in the declaration list.
A) position
B) location
C) ordinal
D) index
Q2) When an object is passed as an argument, it is actually a reference to the object that is passed.
A)True
B)False
Q3) To get the name of a calling enum constant,
A) simply use the enum constant in the statement.
B) use the ordinal method.
C) use the displayName method.
D) use the toString method.
Q4) 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
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Chapter 7: Arrays and the ArrayList Class
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40 Flashcards
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Sample Questions
Q1) The String[] args parameter in the main method header allows the program to receive arguments from the operating system command line.
A)True
B)False
Q2) Java does not limit the number of dimensions that an array may have.
A)True
B)False
Q3) A sorting algorithm is used to locate a specific item in a larger collection of data.
A)True
B)False
Q4) 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
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Chapter 8: Text Processing and Wrapper Classes
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) When working with the String and StringBuilder class's getChars method, the character at the start position is included in the substring, but the character at the end position is not included.
A)True
B)False
Q2) Which of the following are used as delimiters if the StringTokenizer class's constructor is called and a reference to a String object is passed as the only argument?
A) space
B) tab
C) newline
D) All of the above.
Q3) Which of the following statements converts a double variable named tax to a string and stores the value in the String object variable named str?
A) String str = Double.toString(tax);
B) String str = double(tax);
C) String str = double.toString(tax);
D) String str = tax.Double.toString(str);
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10
Chapter 9: Inheritance
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Sample Questions
Q1) This shows the inheritance relationships among classes in a manner that is similar to a family tree.
A) UML diagram
B) CRC card
C) flowchart
D) class hierarchy
Q2) When a class implements an interface, an inheritance relationship known as ________ is established.
A) implemented heritage
B) interface inheritance
C) realized inheritance
D) abstract inheritance
Q3) When one object is a specialized version of another object, there is this type of relationship between them.
A) "is a"
B) "contains a"
C) "has a"
D) "consists of"
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11
Chapter 10: Exceptions and Advanced File I/O
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) When an exception is thrown,
A) it must always be handled by the method that throws it.
B) it must be handled by the program or by the default exception handler.
C) it may be ignored.
D) the program terminates even if the exception is handled.
Q2) Look at the following code:
FileInputStream fstream = new FileInputStream("info.dat"); DataInputStream inputFile = new DataInputStream(fstream);
This code could also be written as
A) DataInputStream inputFile = new DataInputStream(new FileInputStream("info.dat"));
B) DataInputStream inputFile = new DataInputStream("info.txt");
C) FileInputStream inputFile = new FileInputStream(new DataInputStream("info.dat"));
D) FileInputStream fstream = new DataInputStream("info.txt");
Q3) In a try statement, the try clause must appear first, followed by all of the catch clauses, followed by the optional finally clause.
A)True
B)False
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Chapter 11: GUI Applications Part 1
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40 Verified Questions
40 Flashcards
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Sample Questions
Q1) It is possible to write the main method directly into a GUI class.
A)True
B)False
Q2) What does JFC stand for?
A) Java Frame Class
B) Java Fundamental Core
C) Java Fundamental Classes
D) Java Foundation Classes.
Q3) When an application is not performing correctly, programmers sometimes write statements that display ________ into the application.
A) JVM stack indicators
B) translated byte codes
C) diagnostic messages
D) analytic data output
Q4) Event listeners must
A) exit the application once it has handled the event.
B) not receive any arguments.
C) be included in private inner classes.
D) implement an interface.
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Chapter 12: GUI Applications Part 2
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40 Flashcards
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Sample Questions
Q1) The default selection mode for a JList component is
A) single selection mode.
B) multiple interval selection mode.
C) multiple selection mode.
D) single interval selection mode.
Q2) The indices for a list or combo box start at 1, not 0.
A)True
B)False
Q3) What is returned by the JList class's getSelectedIndex method?
A) the index of the selected item
B) -1 if no item is selected
C) Both A and B
D) None of the above
Q4) Which of the following statements adds the JList object referenced by namesList to the JScrollPane object referenced by namesListScrollPane?
A) JScrollPane namesListScrollPane = new JScrollPane(namesList);
B) namesList.addScrollPane(namesListScrollPane);
C) namesList.add(namesListScrollPane);
D) namesListScrollPane.add(namesList);
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Chapter 13: Applets and More
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Sample Questions
Q1) The names of the AWT classes are the same as those of the Swing classes, except the AWT class names do not start with this letter.
A) J
B) X
C) S
D) A
Q2) An applet class inherits from this class.
A) JWindow
B) JViewport
C) JFrame
D) JApplet
Q3) A mouse motion listener class must implement the MouseMotionListener interface, which is in this package.
A) javax.swing
B) java.awt.event
C) java.awt
D) java.lang
Q4) An applet does not have to be on a Web server in order to be executed.
A)True
B)False
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Chapter 14: Creating GUI Applications with JavaFX
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Sample Questions
Q1) This section of the Inspector Panel allows you to register the controller class and event listeners with the GUI.
A) Code
B) Properties
C) Layout
D) Content
Q2) Once you have created a GUI with Scene Builder, and saved it to an FXML file, you need to write a Java class that performs which of the following?
A) loads the FXML file
B) builds the scene graph in memory
C) displays the GUI
D) All of the above
Q3) This is an action that takes place within a program, such as the clicking of a button.
A) response
B) input
C) event
D) incident
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Page 16
Chapter 15: Recursion
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Sample Questions
Q1) The recursive binary search algorithm is a good example of repeatedly breaking a problem down into smaller pieces until it is solved.
A)True
B)False
Q2) In the ________, we must always reduce the problem to a smaller version of the original problem.
A) base case
B) partition case
C) lessening case
D) recursive case
Q3) A recursive method can have no more than one base case.
A)True
B)False
Q4) Without a base case, a recursive method will call itself only once and stop.
A)True
B)False
Q5) The recursive case does not require recursion, so it stops the chain of recursive calls.
A)True
B)False
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Chapter 16: Databases
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40 Verified Questions
40 Flashcards
Source URL: https://quizplus.com/quiz/20994
Sample Questions
Q1) In SQL, this is the not-equal-to operator.
A) !=
B) NOT
C) ||
D) <>
Q2) What will happen if you try to store duplicate data in a primary key column?
A) The column is duplicated.
B) An error will occur.
C) The duplicate data will have concurrency issues.
D) The primary key column will not display the duplicate data.
Q3) What string lists the protocol that should be used to access a database, the name of the database, and potentially other items?
A) JDBC driver
B) Database URL
C) JDBC locator
D) Database specifier
Q4) No two rows in a table can have the same value in the primary key column.
A)True
B)False
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