C Programming: Arrays, Functions, and String Handling
One-Dimensional Arrays
A one-dimensional array is a linear collection of elements of the same data type, stored in contiguous memory locations.
1. Declaration
Declaring an array tells the compiler its name, data type, and size.
data_type array_name[size];- Example:
int scores[5];// Declares an array named scores that can hold 5 integers.
2. Initialization
You can initialize an array at the time of declaration or assign values later.
| Method | Example | Description |
|---|---|---|
| Declaration with Size | int marks[3] = {90, 85, 95} |
Java Programming: Exceptions, Threads, and Networking
Java Exceptions: Checked vs Unchecked
Differentiating Exception Types in Java
Exceptions in Java are runtime errors that disrupt the normal flow of a program. They are classified into checked and unchecked exceptions.
Checked Exceptions are verified at compile time. The programmer must either handle them using try-catch blocks or declare them using the throws keyword. These exceptions usually occur due to external factors such as file handling, database access, or network issues. Examples include IOException,
PL/SQL Quiz Answers and Corrections
Module 3 Quiz Answers
Below are the corrected answers and statements from the quiz:
- Structured Query Language (SQL) is considered a procedural language. False
- PL/SQL fully supports SQL data types. True
- The term anonymous blocks refers to blocks of code that are not stored for reuse and do not exist after being executed. True
- The
BEGINsection of a PL/SQL block contains code that creates variables, cursors, and types. False (This belongs in theDECLAREsection.) - Assignment statements are used to put or
Python File I/O, Strings, Control Flow and Data Structures
Python File I/O, Strings, Control Flow and Data Structures
File Input Examples
infile.read(1)
'T'
>>>>
infile.read(5)
'he 3 '
>>>>
infile.readline()
'lines in this file end with the new line
character.\n'
>>>>
infile.read()
'\nThere is a blank line above this line.\n'
>>>>
infile.close()File Output Examples
outfile = open('test.txt', 'w')
>>>>
outfile.write('T')
1
>>>>
outfile.write('his is the first line.')
22
>>>>React useEffect Patterns for Reliable Side Effects
🧠 useEffect Cheat Sheet (Beginner → Confident)
1️⃣ What is useEffect? (Plain English)
useEffect lets you run side effects in a React component.
👉 Side effects = things that are not UI rendering.
- Fetching data
- Calling APIs
- Using
localStorage - Timers (
setTimeout,setInterval) - Event listeners
- Updating the document title
Rule of thumb:
If it touches the outside world, it belongs inuseEffect.
2️⃣ Basic Syntax (Memorize This)
useEffect(() => {
// side effect code
}, [dependencies]);
📌 Two parts:
Read MoreCorrected VHDL Source: SRAM, CAM, State Machine
Corrected VHDL Source and Formatting
The following document preserves the original content while correcting spelling, capitalization, and HTML structure. All VHDL text has been kept but formatted for readability.
SRAM Read/Write Process
34
process(CLK, RST) begin
if (RST = '0') then
DATA <= (others => '0');
elsif (rising_edge(CLK)) then
if (WE = '1') then
SRAM(to_integer(unsigned(ADDRESS))) <= unsigned(DATA);
else
s_data_read_reg <