// DrJava saved history v2
/* Monday - Jan 17, 2005 */
/* first we reviewed the String manipulation */
String h = "Hi ! aren't you glad the weekend is over!";
/* when we tried to find a way to identify the position just */
/* after the exclamation mark - we first tried this */
h.indexOf("!"+1)
/* but that was wrong because we need to first find the */
/* position of the exclamation mark and then move over one */
h
/* this is the position of index of the position of the "!"*/
h.indexOf("!")
/* remember that the index of the first position in a string is */
/* zero (i.e., 0) */
h.indexOf("!") + 1
/* This is how we would create a substring (or part of a string) */
/* of the string up to and including the "!" */
/* so we specify the start position 0, and the end position */
String i = h.substring(0, h.indexOf("!")+1)
i
/* now we want to take the remainder of the hi string starting */
/* with "aren't" - we can just start where "aren't" starts */
/* and take the remainder of the string.  If you look at the */
/* String API documentation - this is the second form of the */
/* substring method. */
h = h.substring(h.indexOf("aren"))
/* now we create a Book object using our new Book class */
/* but first we must pass the constructor the date as a */
/* date object - so we must create a date object */
import java.util.Date;
Date d = new Date();
Book b = new Book("A Time to Kill", "John Grisham", d);
b.numBooks()
/** always call a static method with the class name first */
Book.getBookCount()
/* never call it with the object that you have created */
/* we modified our Book class several times and retried the */
/* methods.  Specifically - we modified our toString method */
/* to better format the output of the string */
Date today = new Date()
today
import java.util.Date;
Date d = new Date();
Book b = new Book("A Time to Kill", "John Grisham", d);
b.toString()
import java.util.Date;
Date d = new Date();
Book b = new Book("A Time to Kill", "John Grisham", d);
b.toString()
import java.util.Date;
Date d = new Date();
Book b = new Book("A Time to Kill", "John Grisham", d);
b.toString()
/* rather than having to retype code every time you want */
/* to test a module - wouldn't it be nice to have a program */
/* that tests our program.  We will be creating test programs */
/* next lesson.  Stay tuned */