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How do I generate random integers within a specific range in Java?
(72 answers)
Closed 8 years ago.
i am wondering if you could help me in my project. I would to ask your opinion of what algorithm is best to used in generating random numbers that ranges from 1 to 9.. Its a game like "Sphere Break" a famous mini game of FFx-2.
Please refer to the picture for
Need Opinions Please!! Need Help Badly.
My problem is that i want a certain algorithm to generate random numbers from 1 - 9 like in the picture every gameplay = another set of random coins...
P.S. i am developing an android game using unity !! thx for the response
create a List<Integer> to hold 1-9 number and use Collections.shuffle() and render them
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How to draw a tree representing a graph of connected nodes?
(4 answers)
Closed 6 years ago.
I will be building a program on how to construct a NFA , the output of this particular program is visualise out the NFA in a graphical user interface. The final output of the program must be something like this:
My question is how do I get started on "drawing" the states in circle , adding edges , inserting the input between two states, how do I program the GUI part by using java? please help me out..
Ty to look to https://github.com/jgraph/mxgraph. There is swing/web examples. Manual is here https://jgraph.github.io/mxgraph/.
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Playing an arbitrary tone with Android
(10 answers)
Closed 3 years ago.
So I'm trying to find out if its possible to create some sound waves that I can then manipulate using java, more specifically for the android platform. The Idea is to get integer values and using that, dynamically change pitch/pulse based on user input. I've looked into the soundpool class and it seems that that only handles sampled audio, I'm wondering if there is any way to actually generate it using code.
I'm assuming that if so, each wave generated would have to use it's own thread in order to manipulate them independently. Can someone confirm this?
Any help in the right direction is appreciated.
So I found this question whose highest voted answer is pretty much exactly what I was looking for. In any case, here's the link for reference:
Playing an arbitrary tone with Android
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Trie data structures - Java [closed]
(3 answers)
Closed 9 years ago.
I need to create a trie in Java for my Boggle game. I have tried searching for this site for help before hand but only got answers for C or Python but nothing on Java.
Anyways to keep it short, I was wondering how one would go about storing a dictionary (so like a text file of words; around 100k words) into a trie. I've read up about the trie and found it hard to visualize code for it.
Specifically I'm looking for steps to follow when programming (so like what methods I should include and what they do).
Any help would be appreciated!
Have you looked at TrieST? I really suggest you do. Otherwise, I suggest reading this article. Maybe also this one.
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Closed 10 years ago.
Possible Duplicate:
How do I normalize an image?
I am working on the implementation of active contours with gradient vector flow. I need to normalize the input image in the interval from 0 to 1 Unfortunately, I do not know how to do this in JAVA or JAI. If you can help me with some of your code or some link which can me help, many thanks.
If you want to use an already existing library, I can recommend ImageJ, which has a good set of image processing algorithms. You can find more in this SO question.
If you want to implement it yourself, that's quiet easy. Find maximum and minimum of your image in a run, then run over it again, rescaling every point.
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I am learning java on my own. I have books to read. but i feel i am not really coding anything significant . Can you guys give me any programming problem that would really help me get more practical experience rather than a theoretical experience with java ?
Appreciate it.
silverkid
Many people learn new languages by solving problems from Project Euler.
To give you some examples, here are the 10 first problems in the project:
Add all the natural numbers below one thousand that are multiples of 3 or 5.
Find the sum of all the even-valued terms in the Fibonacci sequence which do not exceed four million.
Find the largest prime factor of a composite number.
Find the largest palindrome made from the product of two 3-digit numbers.
What is the smallest number divisible by each of the numbers 1 to 20?
What is the difference between the sum of the squares and the square of the sums?
Find the 10001st prime.
Discover the largest product of five consecutive digits in the 1000-digit number.
Find the only Pythagorean triplet, {a, b, c}, for which a + b + c = 1000.
Calculate the sum of all the primes below two million.
I just wanted to put an idea out here for you from my own experiences.
Whilst studying I was given the task of creating a Client/Sever chat application, I found it really interesting and there are plenty of obvious ways you can extend the program to better your ability.
For instance, start with a basic server and client simply sending text to one another. And then advance to having users (from a database perhaps) who have to log in to the application. You can make it as simple and as complicated as you wish.
Hope this helps.
Tony
Try this:
Martyr2’s Mega Project List
Java exercises:
http://www.google.com/search?aq=f&sourceid=chrome&ie=UTF-8&q=java+exercise
Java examples:
http://www.exampledepot.com/
What area of Java programming are you interested in? Web, device, desktop?
Sure Why Not, Here it is : http://download.oracle.com/javase/tutorial/