#36 String Buffering and String Building in JAVA | Skyhighes | Lecture 36

Here's a comprehensive explanation of string buffering and string building in Java:

String Buffering with StringBuilder:

Mutable: Strings created with StringBuilder can be modified after creation.
Efficient for frequent modifications: Ideal for scenarios where you'll be repeatedly appending, inserting, or deleting characters within a string.
Thread-safe: StringBuilder is not thread-safe, meaning operations on it from multiple threads without synchronization can lead to unexpected results.
Key Methods:

append(String str): Appends a string to the end.
insert(int offset, String str): Inserts a string at a specified index.
delete(int startIndex, int endIndex): Deletes a portion of the string.
toString(): Returns the current string representation.
Example:

Java
StringBuilder sb = new StringBuilder("Hello");
sb.append(", world!"); // sb now contains "Hello, world!"
sb.insert(7, "beautiful "); // sb now contains "Hello, beautiful world!"
Use code with caution. Learn more
String Building with StringBuffer:

Also mutable: Like StringBuilder, strings created with StringBuffer can be modified.
Thread-safe: StringBuffer is thread-safe, making it suitable for multithreaded environments.
Less efficient: Due to thread-safety measures, StringBuffer is generally less efficient than StringBuilder for single-threaded operations.
Key Methods:

Same methods as StringBuilder: StringBuffer shares the same core methods with StringBuilder.
Choosing the Right Class:

StringBuilder: Use for single-threaded scenarios where efficiency is a priority.
StringBuffer: Use in multithreaded environments where thread safety is essential.
Key Points:

Both StringBuilder and StringBuffer are more efficient than using the + operator for string concatenation when dealing with frequent modifications.
The toString() method is crucial for obtaining the final string value from either class.
Additional Considerations:

Consider using Java's newer StringJoiner class, introduced in Java 8, for efficient and readable string concatenation.