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Creation of StringBuffer

In this section, you will learn how to create a string buffer.

Creation of StringBuffer


In this section, you will learn how to create a string buffer. Here we have used the following StringBuffer Constructors.

StringBuffer() //Default Constructor with 16 characters set
StringBuffer(String s) //String to String Buffer
StringBuffer(int initialCapacity) //StringBuffer?s with initial Capacity 

Description of code:

As mentioned above we have taken three String buffer constructors here. One is the default with 16 characters and other two takes the String buffer and capacity of StringBuffer. Therefore we get the following output.

public class StringBufferExample{
  public static void main(String[] args) {
  StringBuffer strBuffer1 = new StringBuffer("Bonjour");  
  StringBuffer strBuffer2 = new StringBuffer(60);  
  StringBuffer strBuffer3 = new StringBuffer();  
  System.out.println("strBuffer1 : " +strBuffer1);
  System.out.println("strBuffer2 capacity : " +strBuffer2.capacity());
  System.out.println("strBuffer3 capacity : " +strBuffer3.capacity());

Output of the program:


C:\unique>java StringBufferExample
strBuffer1 : Bonjour
strBuffer2 capacity : 60
strBuffer3 capacity : 16


Download this example.




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May 10, 2012
about String and related classes of java

my question is, How exactly String class in java is different from StringBuffer and StringBuilder classes. it will be more helpful if explained with examples.