StringBuilder Class in Java

 StringBuilder class is used to create mutable (modifiable) String. The Java StringBuilder class is same as StringBuffer class except that it is non-synchronized.  

A list of differences between StringBuffer and StringBuilder is given below:

public class StringBuilderExample {

public static void main(String[] args) {

// Creating a StringBuilder

StringBuilder stringBuilder = new StringBuilder("Hello");

// Appending characters

stringBuilder.append(" World");

// Inserting characters at a specific position

stringBuilder.insert(5, ", ");

// Deleting characters

stringBuilder.delete(11, 16);

// Updating characters

stringBuilder.replace(6, 11, "Java");

// Converting to String

String result = stringBuilder.toString();

System.out.println(result); // Output: Hello Java, World

}

}