Deepa, as you probably already found, there is no "read-one-book-and-pass-SCDJWS" solution. I wrote in the beginning of my guide, that it should not be used as *the* *only* source for preparation, because it is *incomplete*. I suggest you to look at the great SCDJWS links page ( http://www.valoxo.ch/jr/SCDJWS_Links.html ) which was compiled by gold digger Valentin Crettaz. Proceed and overcome.
Exam 1Z0-817: Upgrade OCP Java 6, 7 and 8 to Java SE 11 Developer Study Guide and Quiz