Re: [Java] Re: can someone help me on a school assignment

 

You need to look at some Javadoc:
http://java.sun.com/j2se/1.5.0/docs/api/
Lookup the API for the System class and InputStream. System.in is the
same as C's STDIN; it reads from the keyboard by default.

It may not be obvious at first, but the answer lies in the InputStream
class. Specifically, one of the read () methods.

-Java Guy

Heath Graham wrote:
>
>
> Sir attached is what i have so far, i worked on this for about an
> hour, i think ive almost got it but still unsure about how to read in
> 80 char's. I appreciate your feedback, as i am sure that everyone
> finds this amusing but i am in my first year of CS and need some
> direction.
>
> Heath
>
> --- On Mon, 1/18/10, harrybeezhold <harrybeezhold@comcast.net
> <mailto:harrybeezhold%40comcast.net>> wrote:
>
> From: harrybeezhold <harrybeezhold@comcast.net
> <mailto:harrybeezhold%40comcast.net>>
> Subject: [Java] Re: can someone help me on a school assignment
> To: Java_Official@yahoogroups.com <mailto:Java_Official%40yahoogroups.com>
> Date: Monday, January 18, 2010, 10:45 PM
>
>
>
> I could write this program in less than a half hour.
>
> However, that's not what this group is about.
>
> Rather, show us what you have thought / designed / coded / tested or
> whatever.
>
> Then we can discuss particular stumbling blocks.
>
> Here is part of what I mean:
>
> What objects do you see?
>
> What characteristics( properties) does each object have?
>
> What behaviors(methods) does each object have?
>
> Hint
>
> I see two objects:
>
> 1 FlipStack
>
> properties
>
> the stack (some kind of array)
>
> the next position (for the next char)
>
> methods
>
> initialize
>
> push
>
> pop
>
> is it empty
>
> 2 FlipStackTestDriver
>
> properties
>
> a FlipStack
>
> methods
>
> main
>
> instantiates the FlipStack,
>
> some kind of loop
>
> push one byte
>
> another loop
>
> pop one byte
>
> display results
>
> Try coding that. If you get stuck, come on back, but be specific.
>
> Note this can all be done in one class by moving the main method into
> the FlipStack class. Also, if you do it with two classes, you might
> want to ask your instructor which class he'd like to have do the
> popping and display.
>
> --- In Java_Official@ yahoogroups. com, "h.graham13" <h.graham13@ ...>
> wrote:
>
> >
>
> > I need someone to show me how to implement the standard stack
> procedures (push, pop, and isempty) using an array. They will be
> called by a driver which accepts up to 80 characters at a time, places
> each character on the stack, and, once finished receiving characters,
> then displays them in reversed order. I am not allowed to use any
> built-in functions. Any help would be greatly appreciated.
>
> >
>
> ----------
>
>
> public class Stack<T> {
> private T[] items;
>
> private int top;
>
> @SuppressWarnings("unchecked")
> public Stack(int size) {
> items = (T[]) new Object[size];
> top = -1;
> }
>
> public void push(T item) throws Exception {
> if (top == items.length - 1)
> throw new Exception("Stack Full");
> items[++top] = item;
> }
>
> public T pop() throws Exception {
> if (top == -1)
> throw new Exception("Stack Empty");
> return items[top--];
> }
> }
>
> [Non-text portions of this message have been removed]
>
>

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