exam02 topics

Loops (as per hw03, Credit-card numbers): The syntax of while and for; Initializing and declaring variables for loop-control and/or an accumulating an answer.
Arrays (as per hw04, array-practice):
- How to write their type (declare a variable to hold an array, or a parameter which is an array, or a function which returns an array.)
- How to allocate an array, with new: both an array holding specific values, as well as an array holding (say) 93 values.
- Looping over an array, either to initialize its values, or to search for/process its values.
- Functions that take in an array;
- Functions that return a new array (perhaps based on the input).
- void functions that take in an array(-reference), and assign-to (mutate) its elements.
Objects:
- A way to group several pieces of data into one single object (a compound datum, that has several fields).
- Declaring the fields of a class;
- Creating objects of a class, by calling the constructor
- Syntax for writing (and calling) a constructor.
- writing a function that takes in an object (as a static method, and then non-static)
- writing a function that returns a newly-created object (as a static method, and then non-static)
- Calling non-static functions (object-dot-functionname-arguments)
- Writing non-static functions (an implicit parameter this)
- getter- and setter-methods

Previous topics

(These are all still fair game; many of the particular skills here are subsumed by the above.)

The following standard built-in types in Java, and when to use them (give an example): int, double, boolean, char, String.
Terms: type, signature, argument, parameter,
Examples, syntax, and why we use each of the following:
- calling a function e.g.: write an expression that calls to substring; write a call to buffetPrice; write n expression
- function signature (that is, declaring a function)
- the return statement

the syntax of if-else; if-else-if.
How to declare a variable.
How to initialize a variable.

While loops

How to compile (javac, java)
naming conventions (name a function for ____________; class-name (starts with a _________) , named-constant (ALL_CAPS)).

To practice: solve any of the suggested problems on recent lecture, or any of those suggested at the bottom of a recent lab. (The lab problems, if you include main interactively reading from a Scanner, will use 2-3 functions total. Think about how to break the problem down into a helper functions.)

You will be provided with the summary documentation for any built-in Java methods you might need (String, java.util.Scanner, java.util.Random).

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