Java StringBuffer SubString Example

/*
   Java StringBuffer SubString Example
   This example shows how to get a sub string of content of the StringBuffer using
   substring method of Java StringBuffer class.
*/
 
public class JavaStringBufferSubStringExample {
 
  public static void main(String[] args) {
    //create StringBuffer object
    StringBuffer sb = new StringBuffer("Java StringBuffer SubString Example");
    System.out.println("Original Text : " + sb);
 
    /*
     SubString method is overloaded in StringBuffer class
     1. String substring(int start)
     returns new String which contains sequence of characters contined in
     StringBuffer starting from start index to StringBuffer.length() - 1 index
    */
    String strPart1 = sb.substring(5);
    System.out.println("Substring 1 : " + strPart1);
 
    /*
     2. String substring(int start, int end)
     returns new String which contains sequence of characters contined in
     StringBuffer starting from start index to end index
    */
    String strPart2 = sb.substring(0,17);
    System.out.println("Substring 2 : " + strPart2);
 
    /* Please note that both the methods can throw a StringIndexOutOfBoundsException
       if start or end is invalid. 
    */
 
  }
}
 
/*
Output would be
Original Text : Java StringBuffer SubString Example
Substring 1 : StringBuffer SubString Example
Substring 2 : Java StringBuffer
*/