Computer Programming Trivia

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| By Justinsmith
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Quizzes Created: 9 | Total Attempts: 37,823
Questions: 10 | Viewed: 27,276


During program development, software requirements specify

Answer: What the task is that the program must perform
Software requirements specify what the task is that the program must perform. This means that the requirements outline the specific functionalities and objectives that the program needs to achieve. They define the desired behavior and outcomes of the program, serving as a guide for the development process. By clearly stating what the program must accomplish, the requirements help ensure that the final product meets the needs and expectations of the stakeholders.

_______ is the process of finding errors and fixing them within a program.

Answer: Debugging
Debugging is the process of finding errors and fixing them within a program. It involves identifying and resolving issues such as logical errors, syntax errors, or runtime errors that prevent the program from working correctly. This process often requires the use of debugging tools and techniques, such as setting breakpoints, stepping through code, and analyzing variables, in order to locate and rectify the errors.

A loop that never ends is referred to as a(n)_________.

Answer: Infinite loop
An infinite loop refers to a loop that continues indefinitely without ever terminating. This can occur when the loop condition is always true or when there is no exit condition specified within the loop. As a result, the loop keeps repeating its code block endlessly until it is manually interrupted or the program is terminated.

Which command will stop an infinite loop?

Answer: Ctrl - C
Ctrl - C is the correct answer because it is a commonly used keyboard shortcut to interrupt or terminate a process in many operating systems and programming languages. When an infinite loop is running, pressing Ctrl - C sends a signal to the system to stop the execution of the loop and exit the program. This allows the user to regain control and prevent the program from running indefinitely.

Score =Keyboard.readInt(); while (score !=  -1)         { System.out.println (“The score is” + score); score =Keyboard.readInt();         } USER INPUT = -1, predict what will happen after the user input is accepted into the java program.

Answer: The while statement will function until a value other than –1 is entered.
In the provided Java code snippet, the program begins by reading an integer input for the variable score. It then enters a while loop that continues as long as score is not equal to -1. Inside the loop, it prints the current score and then reads another score input. When the user enters -1, the condition score != -1 becomes false, causing the loop to terminate. Therefore, the loop will continue to process and output the scores entered by the user until the user inputs -1, which stops the loop.

Which keyword is used to declare a constant variable in Java?

Answer: Final
In Java, the keyword 'final' is used to declare constant variables. Once a variable is assigned a value with 'final', it cannot be changed. This contrasts with other languages that might use 'const' or similar keywords. 'Final' can also be applied to methods and classes to prevent them from being overridden or subclassed, respectively.

What is the primary purpose of the 'super' keyword in Java?

Answer: To call methods of the parent class
The 'super' keyword in Java is primarily used to call methods and constructors of a parent class from within a subclass. This feature is useful in overridden methods where the subclass method needs to leverage or augment the parent class's implementation.

What does the 'continue' statement do in a loop?

Answer: Skips the current iteration and proceeds to the next one
The 'continue' statement interrupts the current loop iteration and immediately proceeds to the next iteration. This command is useful for skipping certain conditions within a loop without exiting the loop completely.

In object-oriented programming, what does the concept of inheritance allow you to do?

Answer: Create a class based on another class
Inheritance in object-oriented programming allows one class to inherit properties and methods from another class. This parent class is known as a superclass, and the inheriting class is called a subclass or derived class. Inheritance promotes code reusability and establishes a natural hierarchy among classes.

What is the function of the 'throw' keyword in Java?

Answer: It is used to signal the occurrence of an exception.
The 'throw' keyword in Java is used within a method to throw an exception. This keyword allows a method to handle an error condition by interrupting its normal execution flow and passing responsibility for handling the problem to a caller of the method. This is done by creating an instance of an exception object and handing it off to the runtime system, which looks for an appropriate exception handler to catch it. This feature is essential for implementing error handling in Java, allowing developers to manage and respond to exceptional circumstances effectively.
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