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Type: Posts; User: coder752

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1. ## Thread: Valid question or not?

by coder752
Replies
3
Views
1,095

### Re: Valid question or not?

How can it be decreasing when the question stated show that its increasing, I sort of understand your way of calculating it but I don't think the formula is right.
2. ## Thread: Valid question or not?

by coder752
Replies
3
Views
1,095

### Valid question or not?

Can you check to see if this is even a valid question. I got this challenge from someone and I believe there's no way to solve it but have a look. I can't find a perfect bounded above value...I...

by coder752
Replies
3
Views
1,435

### Re: Equations Problem

I solved it now...thanks.

by coder752
Replies
3
Views
1,435

### Re: Equations Problem

Thanks, I will try to read the link first, attempt the question, and post my findings to see if I'm right...or need additional help.

Thanks so much, also could you take a look at my other thread...

by coder752
Replies
3
Views
1,435

### Equations Problem

I need help with this question:

Find what a,b,and c is. They must be integer answers.

The equation goes like this:

35a+55b+77c=1

I'm totally confused, I can think of a solution but...
6. ## Thread: Discrete Problem Help

by coder752
Replies
0
Views
861

### Discrete Problem Help

Hey all,

I need help on this problem. Say that x^2 is congruent to 3 (mod 83).
Find the inverse of x (mod 83).

I made a small example case first: (I think all this is wrong now) Please...
7. ## Thread: Tricky question that deals with big O notation and little o notation

by coder752
Replies
4
Views
2,357

### Re: Tricky question that deals with big O notation and little o notation

I suppose it is.

Does that help any bit?

Basically I believe its asking for a function that is not little o(1) but when you plug in the number 2009 in the new function it will equal to 0 thus...
8. ## Thread: Tricky question that deals with big O notation and little o notation

by coder752
Replies
4
Views
2,357

### Re: Tricky question that deals with big O notation and little o notation

Ok, I'll give you the whole statement.

This is a two parter question to be treated separate.
Suppose f(x) is a function such that f(x) = O(1).

Can e^{f(x)} = o(1)? Yes or no, provide...

by coder752
Replies
1
Views
1,010

### Induction Question

I have another induction question. Here's my work. I think I got it right(except the base case).

Help is greatly appreciated. Thanks in advance.

The question goes as this: Prove using...
10. ## Thread: Tricky question that deals with big O notation and little o notation

by coder752
Replies
4
Views
2,357

### Tricky question that deals with big O notation and little o notation

Hi,

I have this question that seems trivial to me.

I need to find a function which is not o(1) but where f(2009) = 0 <---fyi this is a zero
using the fact that f(x) is a function such that...
11. ## Thread: Congruency with Mod (Induction Question)

by coder752
Replies
6
Views
1,417

### Congruency with Mod (Induction Question)

Hi,

I wanted to clarify my answer for this question. Please note if I did anything wrong.

The question uses induction.

Prove that for every positive integer n, 4^n+14 congruent 0(mod 6)
...

by coder752
Replies
5
Views
1,938

### Re: Induction

So the next step would be this:

P(k): 1+1+2+3+5+8+.........k= (k+2) -1

And the next step would be this:

P(k+1) 1+1+2+3+5+8+.......k+k+1=(k+2)+1-1 which would simply be:

P(k+1)...

by coder752
Replies
5
Views
1,938

### Induction

I need help with this challenging question for my computer discrete structures/data structures class.

Ok I need to prove that the sum of the first n fibonacci numbers is equal to the (n+2)nd...
14. ## Thread: GUI Help Java Program

by coder752
Replies
1
Views
766

### GUI Help Java Program

I don't know what to use, a JFileChooser, or a JTextArea?

It's suppose to read in a social security (sample) file, if it contains anything other than the 9 digits, it will show the exception. ...
15. ## Thread: GUI example won't work

by coder752
Replies
6
Views
2,546

### Re: GUI example won't work

Ok, so I transferred my code to a new directory called components. I placed TextDemo.java in there. I added this line of code in the heading as well

import components.*;

Next...
I did a...
16. ## Thread: GUI example won't work

by coder752
Replies
6
Views
2,546

### Re: GUI example won't work

Exception in thread "main" java.lang.NoClassDefFoundError: TextDemo (wrong name:
components/TextDemo)
17. ## Thread: GUI example won't work

by coder752
Replies
6
Views
2,546

### GUI example won't work

I got this code from the Java Sun site.

Why won't it run?

package components;

/* TextDemo.java requires no other files. */

by coder752
Replies
12
Views
3,201

Thanks! I just put that line in its new location, it works now.

I don't think I could do the other method Xeel said earlier since I didn't learn generics yet.

by coder752
Replies
12
Views
3,201

So I put that line above that, and I get 2 errors. Now what?

Here's the new main.

/**
* Sole entry point to the class and application.
* @param args Array of String...

by coder752
Replies
12
Views
3,201

Not uh!

It's not as easy as pie.

In case you didn't try to compile it urselves.

This is what I get.

Note: LinkedListExample.java uses unchecked or unsafe operations.
Note: Recompile with...

by coder752
Replies
12
Views
3,201

How can I compile this code found on this site?

http://www.javafaq.nu/java-example-code-90.html

The code is too long to paste here.

No, its not a dumb question...
22. ## Thread: Java I/O Question & toString question

by coder752
Replies
5
Views
957

### Re: Java I/O Question & toString question

System as in what the computer is calculating aka (procedures done internally)

by coder752
Replies
2
Views
741

Thanks for the interpretation.
24. ## Thread: Java I/O Question & toString question

by coder752
Replies
5
Views
957

### Re: Java I/O Question & toString question

[QUOTE
You'll have to explain what you mean.
[/QUOTE]

I mean what is the system doing while the toString is being used and what the system is doing while the program is suppose to have though it...

by coder752
Replies
2
Views
741

Why you can't declare a class abstract and final?

Is there some internal rule the system just rejects, or what?

Can somebody provide a sample program demonstrating this?

Thanks,

Coder752
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