You couldn't type APL code using the characters on an ordinary typewriter keyboard

As a Mac OS-only language you couldn't program in APL without using a GUI editor

APL had no concept of strings; text had to be processed and output one character at a time

As the world's only Albanian Programming Language all APL's keywords were based on Albanian

Blaise Pascal

Ada Lovelace

Jean-Benoit Fortran

William Henry Gates II

Method calls may return only one value but objects may contain any number of methods

The reference count of an object must reach zero for garbage collection to take place

All classes must be declared in header files before they can be instantiated as objects

None of the above

A class that is instantiated exactly once producing just one object of that class

A complete program that takes up only one line of code

A data structure such as a linked list that contains only one member

None of the above

Race conditions can lead to data being corrupted in unexpected ways

Inadequate memory management can lead to application deadlocks

Too many threads or processes can actually decrease performance

All of the above

Java

C++

Python

All of the above

Functions can take other functions as arguments and return them as results

Algorithms are expressed in natural mathematical terms rather than as procedural steps

Every function must modify some kind of state - either within the machine or in the outside world

Recursion is encouraged

An abstract device that can simulate the logic of any conceivable computer algorithm

Any mechanism that can simulate human intelligence sufficiently to fool a human

A device used by early programmers to input punch cards into the computer

Any of a number of machines derived from the first mechanical computing devices

To sort its data structures in memory so that they can be accessed more quickly

To ensure that it is thread-safe by eliminating any deadlocks or race conditions

To break it into simpler subobjects known as "episodes"

To convert it into a form that can be saved to persistent storage

SQL

PostScript

AppleScript

Tcl

Make sure all your subroutines are thread-safe

Free all unallocated memory blocks

Normalize your data model

Determine the answer to question 8 above

Subversion

Apache Ant

NetBeans

Spring

ActionScript

AppleScript

PostScript

VBScript

ActionScript

AppleScript

PostScript

VBScript

Make sure all your subroutines are thread-safe

Free all unallocated memory blocks

Normalize your data model

Determine the answer to question above

Linking libraries statically increases executable file size and leads to code redundancy

Without dynamic linking the software cannot take advantage of higher-order functions

The software becomes subject to the linked libraries' license terms which may include usage fees

Lack of proper dynamic linking leads to library proliferation and increased "DLL hell"

Cobol

Fortran

C

LISP

100

50

200

150

x=57 & y=94

x=57,y=55

X = 57 Y= 93

X = 37 Y= 65

Compile error

What this prints

11

15