Java

 String str;
   while ((str = rd.readLine()) != null) {
 System.out.println(str);
                 
  String file = str.toString();
.
.//use of first string
.
.
.
while(something)
{
while(something new)
{
if(str.equalsignorecase("Google"))
{
System.out.print("My Yahoo");
}
else if(str.equalsignorecase("yahoo"))
{
System.out.print(My Google);

}

}

} 
}
rd.close();
socket.close();

String str

String   files = "";
                   if(files!= null)
                   {
                      InputStreamReader input = new InputStreamReader(System.in);
BufferedReader reader = new BufferedReader(input); 
   files = reader.readLine(); 
   
                     File sourcefile = new File(files);
                     System.out.print(sourcefile.toString());
                      StringBuilder sURL = new StringBuilder("file:///");
                       
                       sURL.append(sourcefile.getCanonicalPath().replace('\\', '/'));

}