Data Types, Variables, Operators, and Structures in BASIC
Data Behavior in a Program
Data can behave in two different ways in a program:
- Constants: Their value never changes during the program’s execution.
- Variables: Their value can vary as often as necessary.
Naming Conventions
When naming a variable, keep in mind the following rules:
- Any alphanumeric character can be used, but it must always begin with a letter.
- Spaces are not allowed; it is common to use the underscore character (_) for compound names.
- The name length may not exceed 32 characters.
- Dots or other
Object-Oriented Design: Subsystems, Architecture, and MVC Pattern
Object-Oriented Design Steps
In object-oriented design, two major steps are needed to begin the design phase. These steps involve organizing the problem domain and subdividing it into packages with defined stereotypes.
When approaching the problem domain, the initial step is to partition the analysis model. This involves defining cohesive collections of classes, relationships, and behaviors, bundling them into packages or subsystems.
Important Considerations for Subsystems:
- A subsystem must have a well-
Dart Streams and SQLite Database Management in Flutter
1. Single Subscription vs. Broadcast Streams
Single Subscription Streams
- Allows only one listener at a time.
- Ideal for sequential or one-time data processing, such as reading a file or fetching data from an API.
- Example: File I/O operations or HTTP requests.
Broadcast Streams
- Allows multiple listeners simultaneously.
- Best for scenarios involving real-time data or event broadcasting, such as WebSocket updates or UI events.
- Example: Button clicks or live data updates.
Code Example:
import 'dart:async';
void Understanding Deadlock, Virtual Memory, and Disk Management
Deadlock Characterization
- Mutual Exclusion: Only one process at a time can use a resource.
- Hold and Wait: A process holding at least one resource is waiting to acquire additional resources held by other processes.
- No Preemption: A resource can be released only voluntarily by the process holding it, after that process has completed its task.
- Circular Wait: There exists a set {P0, P1, …, Pn} of waiting processes such that P0 is waiting for a resource that is held by P1, P1 is waiting for a resource
Machine and Assembly Language Differences
1)मशीनी भाषा एवं असेंबली भाषा में विभेद कीजिए।
=
मशीनी भाषा और असेंबली भाषा में विभेद
मशीनी भाषा और असेंबली भाषा दोनों ही कंप्यूटर प्रोग्रामिंग की निम्न-
स्तरीय भाषाएँ हैं, लेकिन उनमें कुछ महत्वपूर्ण
Python Programs: Arithmetic Operations & Number Handling
Program to Find the Average of Three Numbers
This program calculates the average of three numbers entered by the user:
number1 = int(input("Please enter the first number: "))
number2 = int(input("Please enter the second number: "))
number3 = int(input("Please enter the third number: "))
result = (number1 + number2 + number3) / 3
print("The average of the three numbers is:", result)
Output:
Please enter the first number: 100 Please enter the second number: 70 Please enter the third number: 80 TheRead More