toString() method in spring buffer in Java

// Program to explain the following StringBuffer function :
//String toString()
class  MtoString
{
public static void main( String args[ ] )
{
 StringBuffer sb = new StringBuffer( "Java Programming Examples." );
 
 String s = sb.toString();
 System.out.println( " String = " + s ); 
}
}

Output:
 String = Java Programming Examples.