COMPUTER SCIENCE FINAL EXAM
Define the word "program". Correct answer- A set of instructions to achieve a specified goal.
Explain why programming in machine language is undesirable Correct answer- Programming is 1s and 0s is very tedious and problematic.
What language uses commands with ...
explain why programming in machine language is undesirable
what language uses commands with mnemonic names and hexadecimal numbers
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COMPUTER SCIENCE FINAL EXAM
COMPUTER SCIENCE FINAL EXAM
COMPUTER SCIENCE FINAL EXAM
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COMPUTER SCIENCE FINAL EXAM
Define the word "program". Correct answer- A set of instructions to achieve a specified goal.
Explain why programming in machine language is undesirable Correct answer- Programming is
1s and 0s is very tedious and problematic.
What language uses commands with mnemonic names and hexadecimal numbers? Correct
answer- Assembly language
What is the name of the translator used by Assembly Language? Correct answer- Assembler
List 2 of Grace Hopper's accomplishments. Correct answer- Developed program translators &
Developed COBOL
Explain the difference between an interpreter and a compiler. Correct answer- Compilers
translates the entire file and then execute.
Interpreters translate each line and execute each line
What is a "low-level" language? Correct answer- Close to computer language
What is a high-level language? Correct answer- Close to human language
Why do we not simply use English, or any other human language, to program a computer?
Correct answer- English is too ambiguous
What was the first successful programming language for the mathematics and scientific
Community language? Correct answer- FORTRAN
What does FORTRAN stand for? Correct answer- Formula Translator
What community was COBOL created for? Correct answer- business
A program is made up of words, which usually are called what? Correct answer- Keywords
What is the first Java syntax rule? Correct answer- Use only keywords known by the Java
compiler.
List the 3 categories of keywords. Correct answer- Reserved words, pre-defined identifiers and
user-defined identifiers
List 3 examples of Java Reserved Words Correct answer- public, static, void
Java has a large number of libraries that enhance the basic Java language. These libraries contain
, special program modules that perform a variety of tasks to simplify the life of a programmer.
What
are these modules called? Correct answer- methods
List 2 examples of Predefined Identifiers. Correct answer- print and println
What does OOP stand for? Correct answer- Object Oriented Programming
What is the difference between C++ and Java with regards to OOP? Correct answer- C++ gives
you the option to use OOP. Java requires it.
What are the 4 stages of program design? Correct answer- Cryptic Programming Stage
Unstructured, Spaghetti-Programming Stage
Structured Programming Stage
Object Oriented Programming Stage
Why were some programs intentionally written very cryptic in the 1st stage of program design?
Correct answer- Many programs were written intentionally in a very cryptic style that only the
creator of the
program could understand
Why did the first stage of program design not last long? Correct answer- Computers became
cheaper and programmers became more expensive. Programs required
frequent debugging and updating, and the cryptic style usually meant starting a program from
scratch if the creator left the company. Companies could not afford this wasteful approach.
What quick fix statement was used in the 2nd stage of program design? Correct answer- goto
What is the simplest control structure? Correct answer- for
Write the Java statement that will do this action: If your grade is 70 or better, print "You passed!"
Correct answer- if (grade >= 70)
System.out.println("You passed");
Why should indentation be used with control structures? Correct answer- It makes the program
more readable.
Explain the unusual output of program Java0507. Correct answer- The program is meant to
execute multiple statements only if the condition is true.
What do you need to add to a program if you wish to control multiple statements with if. Correct
answer- Create block structure with opening and closing braces.
What statement is used with if for two-way selection? Correct answer- else
Objects contain data and what else? Correct answer- methods
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