Home Java Beginners String Buffer insert and append example
Questions:Ask|Latest


 
 

Share on Google+Share on Google+

String Buffer insert and append example

Advertisement
In this section, you will learn how to work with StringBuffer and append data to it.

String Buffer insert and append example

     

In this section, you will learn how to work with StringBuffer and append data to it. The StringBuffer is a class that implements multiple sequence of characters. The following program construct a string buffer that has '0' capacity. This program inserts the data in the string buffer using the insert() method that provides the facility for adding the data in any positions. But the append() method also add data in string buffer in ending position. This method inserts always last or end position. 

Description of code:

StringBuffer(int len):
This is the constructor of StringBuffer class that implements multiple sequence of characters. This constructor constructs a string buffer that have no characters. It takes initial capacity that have to initialized. 

insert(int pos, String str):
This method inserts the string into the object of StringBuffer. It takes following parameters:

    pos: This is the position that have to be used for inserting the data.
  str: This is the string that have to inserted.

append(String str):
This is the method that inserts the string into string buffer. It always inserts a string at last position.

Here is the code of program

import java.lang.*;

public class AppendInsert{
  public static void main(String[] args) {
  System.out.println("StringBuffer insert and append example!");
  StringBuffer sb = new StringBuffer(0);
  //First position
  System.out.println(sb.insert(0"vinod"));
  int len = sb.length();
  //last position
  System.out.println(sb.insert(len, "Deepak"));
  //Six position
  System.out.println(sb.insert(6"Raj"));
  //Always last
  System.out.println(sb.append("Mohit"));
  }
}

Download this example.

Output of program:

C:\vinod\Math_package>javac AppendInsert.java

C:\vinod\Math_package>java AppendInsert
StringBuffer insert and append example!
vinod
vinodDeepak
vinodDRajeepak
vinodDRajeepakMohit
Advertisement

Liked it!  Share this Tutorial


Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.

Posted on: June 11, 2007

Ask Questions?    Discuss: String Buffer insert and append example   View All Comments

Post your Comment


Your Name (*) :
Your Email :
Subject (*):
Your Comment (*):
  Reload Image
 
 
Comments
Tinku Kumawat
September 25, 2011
Good example

Very good example to learn about the string buffer object and append .............
DMCA.com