Exam 6: Programming Languages

Which of the following is not a parse tree of an expression based on the following grammar?

List three items of information that would be contained in a typical parser's symbol table. ________________________ ________________________ ________________________

Which of the following is a means of nullifying conflicts among data types?

In programming languages that use + to mean concatenation of character strings,the expression "2x" + "3x" will produce what result? ________________

Show that the grammar below is ambiguous by drawing two distinct parse trees for the string "drip drip drip." $\text { Leak: }$

Which of the following is not associated with the concept of data type?

Which of the following can Prolog conclude from the following program? parent(jill,sue). Parent(jill,sally). Parent(john,sue). Parent(john,sally). Sibling(X,Y):- parent(Z,X),parent(Z,Y).

Which of the following is not a way of referring to a value in a program?

Which of the following is an example of a language that is based on the functional paradigm?

Which of the following is not associated with object-oriented programming?

Rewrite the following instructions using a single if- else statement. if (X == 5)goto 50 goto 60 50 print(Z) goto 100 60 print(Y) 100 ...

The following is a program segment and the definition of a function named sub. = def sub(): sub() =2 print () \cdot . \cdot A. What value will be printed by the program segment if X of function sub is a global variable? ___________ B. What value will be printed by the program segment if X of function sub is a local variable? ___________

Explain the distinction between a formal parameter and an actual parameter.

What encoding system is commonly used to encode data of each of the following types? A. Integer ___________________________ B. Real __________________________ C. Character ___________________________

In contrast to _______________ languages such as English and Spanish,programming languages are considered _______________ languages and are rigorously defined by their grammars.

Which of the following is a means of defining similar yet different classes in an object-oriented program?

What does it mean to say that a programming language is machine independent?

Explain the distinction between global and local variables.

Explain the distinction between fruitful and void functions.

Based on the Prolog program below,what goal should be used to find the siblings of sue? parent(jill,sue). parent(jill,sally). parent(john,sue). parent(john,sally). sibling(X,Y):- parent(Z,X),parent(Z,Y).