Hints for lab 3 about working with strings and characters

1. To get a character, read in a string and then use the charAt() function. See the class example for the exact syntax
2. It is best in this lab to do keyboard.nextLine() after any keyboard.nextDouble() if one is getting a string after a double. This is important to "eat" the end of line character after the double before getting the string on the next line of input. Example:

    number = keyboard.nextDouble();
    keyboard.nextLine();
    ...
    str = keyboard.nextLine();