Java Fundamentals Chapter 2 Quiz

What will be displayed as a result of executing the following code?

This is an interactive program that lets you enter Java programming statements and immediately see each statement's results. What is it called?

If you use this keyword to declare a local variable, you do not have to specify the variable's data type.

How would you rewrite the following statement using the word var to declare the variable? int value = 99;

Programming style includes techniques for consistently putting spaces and indentation in a program to help create visual cues.

Both character and string literals can be assigned to a char variable.

A variable's scope is the part of the program that has access to that variable.

Named constants are initialized with a value and that value cannot change during the execution of the program.

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.

Class names and keywords are examples of variables.

The Java API provides a class named Math that contains numerous methods which are useful for performing complex mathematical operations.

The System.out.printf method allows you to format output in a variety of ways.

A Java program will not compile unless it contains the correct line numbers.

Java is not case sensitive.

If the compiler encounters a statement that uses a variable before the variable is declared, an error will result.

If you use the var keyword to declare a variable, you cannot initialize the variable with a value.

Which of the following is a value that is written into the code of a program?

A Java program must have at least one of the following:

Which of the following would contain the translated Java byte code for a program named Demo?

Which of the following is a named storage location in the computer's memory?

Which of the following is not a valid Java comment?

To compile a program named First you would use which of the following commands?

A Java source file must be saved with the extension:

Which of the following is not a rule that must be followed when naming identifiers?

Character literals are enclosed in ________ and string literals are enclosed in ________.

Variables are classified according to their:

What is the result of the following expression? $5 + 2$

What is the result of the following expression? $-5 + 10$

In the following Java statement, what value is stored in the variable name?

What is the value of z after the following statements have been executed? $z = 5 + 3$

What output will be displayed as a result of executing the following code? System.out.println(x + z);

Which of the following statements will correctly convert the data type, if x is a float and y is a double?

Which of the following statements is invalid?

To print "Hello, world" on the monitor, which of the following Java statements should be used?

The boolean data type may contain which of the following range of values?

Variables of the boolean data type are useful for:

What would be displayed as a result of executing the following code? System.out.println("There are 5785 hens in the hen house.");

What would be displayed as a result of executing the following code? System.out.println(x);

What would be displayed as a result of executing the following code? System.out.println("This is a simple message.");

What is the value of z after the following code is executed? z = 5

Which of the following statements correctly creates a Scanner object for keyboard input?

Which Scanner class method reads a String?

The primitive data types only allow a(n) ________ to hold a single value.

In Java, ________ must be declared before they can be used.

A value that is written into the code of a program is a(n) ________.

When the + operator is used with strings, it is known as the:

Which of the following is not a rule that must be followed when naming identifiers?

Which of the following cannot be used as identifiers in Java?

Which of the following is not a primitive data type?

Which of the following is valid?

If x has been declared an int, which of the following statements is invalid?

To display the output on the next line, you can use the println method or use the ________ escape sequence in the print method.

Every Java application program must have:

What will be displayed as a result of executing the following code?