Create a String Buffer with some default string. Append any string to ith position of original string and display the modified string. Also display the reverse of modified string.

public class Main {
public static void main(String[] args) {

    StringBuffer sb = new StringBuffer("Hello, ");

   
    sb.appendToPosition(5, "world!");

    
    System.out.println("Modified String: " + sb.getModifiedString());

    
    System.out.println("Reverse of Modified String: " + sb.getReverseModifiedString());
}

}

class StringBuffer {
private StringBuilder buffer;

public StringBuffer(String defaultString) {
    this.buffer = new StringBuilder(defaultString);
}

public void appendToPosition(int position, String stringToAppend) {
    buffer.insert(position, stringToAppend);
}

public String getModifiedString() {
    return buffer.toString();
}

public String getReverseModifiedString() {
    return buffer.reverse().toString();
}

}