CSC 533: Programming Languages
Spring 2021

Midterm Review


Tue, Mar 16
  • The test will in-person, via Blueline.
  • You must bring a laptop to class (or use one of the lab machines).
  • If you must take the exam remotely (e.g., in quarantine), you must arrange it with the instructor ahead of time.
Types of questions
  • factual knowledge: TRUE/FALSE, multiple choice
  • conceptual understanding: short answer, discussion
  • synthesis and application: explain/trace/modify code, simulate stack/heap management, ...

    There is a practice mini-test in Blueline with sample questions.
Study advice
  • review online lecture notes
  • review the text book (if not mentioned in class, won't be on test)
  • look over quizzes, homework assignments
  • reference other sources for examples, different perspectives
  • Take the practice mini-test!
Course material Overview and History programming paradigms: imperative vs. declarative machine language--> assembly language--> high-level languages language translation: compiled vs. interpreted evaluation criteria: readability, writability, reliability key languages: FORTRAN, LISP, ALGOL, C, C++, Java review of Java, object-oriented programming Syntax and Semantics syntax BNF (EBNF) grammar, derivation, parse tree, ambiguity building precedence & associativity into grammar rules semantics operational, axiomatic, denotational Variables and Bindings static vs. dyamic binding variable attributes name: keyword vs. reserved word, naming conventions type: static (explicit or implicit) vs. dynamic binding type checking, coercion address: static vs. stack-dynamic vs. heap-dynamic (implicit or explicit) value: l-value vs. r-value scope & lifetime: static vs. dynamic scoping Data Types primitive data types integer, floating-point (decimal, fixed-point, rational, ...) boolean, character pointer used for indirect addressing, dynamic memory management dangling reference, garbage reference heap management: can allocate/deallocate in arbitrary order allocate/deallocate from free list memory reclamation: reference counts, garbage collection Partition & Copy vs. Mark & Sweep & Compactify Data and Control complex data types string, enumeration, subrange array subscript types, subscript ranges, multi-dimensional allocation (static vs. fixed stack-dynamic vs. stack-dynamic vs. heap-dynamic) record/struct/class field access, accessibility, variant record/union assignments & expressions control structures counter- vs. logic-controlled loops branching Subprograms subprogram linkage (call & return sequences) parameters positional vs. keyword, default values in mode (by-value) vs. out mode (by-result) vs. inout mode (by-value-result, by-reference, by-name) implementing subprograms activation record, run-time stack static vs. dynamic links