stringBuffer() example in Java

// Program to explain the following StringBuffer function :
// StringBuffer()
// StringBuffer( int size )
// StringBuffer( String str )
class  MStringBuffer1
{
public static void main(String args[ ])
{
 StringBuffer sb = new StringBuffer("Java");
 
 System.out.println(" sb = " + sb );

 sb = sb.append(" Programming");
 System.out.println(" sb = " + sb );
 
 sb = sb.append(" Examples.");
 System.out.println(" sb = " + sb ); 
}
}

Output:
sb = Java
sb = Java Programming
sb = Java Programming Examples.