1. Chapter 0 Logic, Flowcharts, Pseudo code - compscisi/Programming-Fundamentals-1-SI GitHub Wiki

Programming Logic

Syntax - vocab used to write a program

Semantics - meaning of an instruction when tokens are placed in a particular order

Logic - specific order of instructions

3 types of programming errors:

  1. Compilation (syntax) errors

    • Caused from syntax and/or semantic errors
    • Easiest to find b/c program will not compile w/ these errors

  2. Run-time errors

    • Caused when program attempts to carry out an operation that is impossible
    • Invalid memory access, divide by 0
    • Sometimes difficult to find when intermittent

  3. Logic error

    • Caused by incorrect sequence of statements
    • Most difficult to find b/c program will continue to run but produce incorrect results
    • Most commonly due to incorrect boolean expressions

Flowcharts

  • method to symbolically represent execution flow paths
  • can be used to design the logic of a program before actual coding takes place
  • major parts of flow chart: terminals, input/output operations, processes, connectors, decision, external module