ITPEC IP October 2018 Question 9

Topic: Algorithm and ProgrammingAlso asked in October 2020 and April 2023

Which of the following is an appropriate description concerning the Java language?

a)It is a markup language used for describing web pages.b)It is a language developed for scientific and engineering calculations.c)It is an object-oriented language that provides platform-independent portability.d)It is a language developed for business-oriented calculations.

Explanation

An object-oriented language with platform-independent portability — Java programs run on any platform that has a Java virtual machine.

Java source code is compiled not into the machine language of one CPU but into bytecode, which a Java virtual machine (JVM) executes. Any OS or device with a JVM runs the same bytecode, the idea summed up as “write once, run anywhere”. Java is object-oriented: programs are built from classes and objects, with encapsulation and inheritance. It is widely used for server-side web applications, Android apps and business systems.

Answer (c)

Why not others:

•(a) — the markup language for describing web pages is HTML; it tags the structure of a document and is not a programming language
•(b) — the language developed for scientific and engineering calculations is FORTRAN
•(d) — the language developed for business-oriented calculations and data processing is COBOL

Key rule: Match each language with its purpose: FORTRAN for science, COBOL for business, C for systems, Java for portable object-oriented programs, HTML for marking up web pages.

Algorithm and Programming · AI-written, may contain errors

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