University:
California State University, Northridge
Course:
COMP 333 | Concepts of Programming Languages
Academic year:

2023
Views:

117

Pages:

2
Author:

S Kim

NYI NYI MOE HTET COMP 333 ASSIGNMENT 1 1.2 How can knowledge of programming language characteristics benefit the whole computing community? It can help developers choose the most appropriate language for the specific domain, improving software development efficiency. Being familiar with language security features and potential vulnerabilities can also empower developers to write more secure code. Lastly, programming language designers can use this knowledge to design new languages that are more effective and easier to use. 1.6 In what language is most of UNIX written? C Language. 1.7 What is the disadvantage of having too many features in a language? A language with too many features can become complex, increasing the potential for bugs and lowering readability. Developers may need more time to master such a language, making it less accessible. 1.12 What does it mean for a program to be reliable? A program is reliable when it consistently produces predictable results and performs according to its specifications under all conditions. 1.13 Why is type checking the parameters of a subprogram important? Type checking the parameters of a subprogram will ensure that the parameters are the correct data types, reducing the chances of runtime errors caused by operations involving incompatible data types. Incorrect data types in parameters can also lead to logical errors. Type checking assists programmers in identifying these logical errors at earlier stages. Thus, it improves the language reliability. 1.15 What is exception handling? Exception handling is the ability of a program to intercept runtime errors, such as division by zero, and implement corrective actions instead of allowing these errors to cause the program to crash. 1.21 What are the three fundamental features of an object-oriented programming language? Data Abstraction – encapsulates the implementation details of data structures and provides a simplified interface for interacting with those data structures. Inheritance – allows subclasses to inherit properties and behaviors from a superclass. Polymorphism – allows objects of different classes to be treated as objects of a common superclass. 1.26 What role does the symbol table play in a compiler? The symbol table serves as a database during the compilation process. It stores the type and attribute information of each user-defined name in the program. This information is entered into the symbol table by the lexical and syntax analyzers and is used by the semantic analyzer and the code generator. 1.27 What does a linker do? A linker is a program that collects system program units, including library functions, and integrates them with a user program. It combines them into a single file that contains all the necessary code and functions. 1.29 What are the advantages of implementing a language with a pure interpreter? Pure interpreters are platform-independent and they can run on various operating systems without modification using a virtual machine. It also enables easy implementation of many source-level debugging operations because all runtime error messages can directly reference source-level units.