Section 23 Java IO Streams

Signed-off-by: https://github.com/Someshdiwan <[email protected]>

Author: Someshdiwan

Section23JavaIOStreams/String Builder Vs String Buffer.txt renamed to Section20JAVA.lang.Package/src/String Builder Vs String Buffer.txt

@@ -1,6 +1,5 @@
 The key differences between StringBuffer and StringBuilder in Java are:
 
-
 | Feature       | StringBuffer                                                       |  StringBuilder                                                       |
 |---------------|--------------------------------------------------------------------|----------------------------------------------------------------------|
 | Thread Safety | Yes, it is synchronized and thread-safe.                           | No, it is not synchronized and not thread-safe.                      |
@@ -10,7 +9,7 @@ The key differences between StringBuffer and StringBuilder in Java are:
 
 Example:
 
-Using StringBuffer (Thread-safe)
+Using StringBuffer (Thread-safe):
 
 StringBuffer sb = new StringBuffer("Hello");
 sb.append(" World");
@@ -25,19 +24,18 @@ sb.append(" World");
 System.out.println(sb); // Output: Hello World
 
 Which one to use?
+
 - If thread safety is required → Use StringBuffer.
 - If thread safety is not a concern and better performance is needed → Use StringBuilder.
 
 
 When to Use StringBuffer and StringBuilder
 
 ✅ Use StringBuffer when:
-
 1. You are working in a multi-threaded environment where multiple threads might access and modify the same string.
 2. You need synchronization to avoid concurrency issues.
 3. You are handling shared mutable strings and want to ensure thread safety.
 
-
 Example: Multi-threaded scenario with StringBuffer
 
 class StringBufferExample {
@@ -52,9 +50,7 @@ class StringBufferExample {
     }
 }
 
-
-✅ Use StringBuilder when:
-
+Use StringBuilder when:
 1. You are working in a single-threaded environment.
 2. You need better performance since StringBuilder is faster than StringBuffer.
 3. You don't need synchronization or thread safety.
@@ -71,13 +67,14 @@ class StringBuilderExample {
 
 Performance Comparison
 
-If thread safety is not required, always prefer StringBuilder over StringBuffer because it avoids unnecessary synchronization and runs faster.
+If thread safety is not required, always prefer StringBuilder over StringBuffer because it avoids unnecessary
+synchronization and runs faster.
 
-✅ Choosing the Right One:
+Choosing the Right One:
 
 | Scenario                                                  | Recommendation |
 |-----------------------------------------------------------|----------------|
 | Single-threaded application                               | StringBuilder  |
 | Multi-threaded application                                | StringBuffer   |
 | Performance is a priority & thread safety is not required | StringBuilder  |
-| Working with multiple threads on the same string object   | StringBuffer   |
+| Working with multiple threads on the same string object   | StringBuffer   |