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I'm new to java and I'm working on a small android project using eclipse. I created a table and I want to populate it with data from a file. I have done this using EditText control shown below. public void AddRowItemTable(View view) { EditText itemid_Text= (EditText) findViewById(R.id.itemid); EditText itemname_Text=(EditText) findViewById(R.id.itemname); … 
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Hello, I got implementation of Data Encryption Standard implementation in java (internet code) but the only part that I cannot understand is the S-Box which shown below. I know how S-Box works but I don't understand this code especially &0x20 and stuffs like that. The S-Box takes a 6 bit … 
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Hello. I've written a simple program that will once read text into a file and then append some other text when it starts reading again. In other words, adding text to an already existing one. My program doesn't do that but instead it keeps overwriting the older text. How can … 
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Hey guys, can anyone help me to run my client program. I'm working on a simple Java RMI but I'm stuck running the client with the error. **java.security.AccessControlException: access denied ("java.net.SocketPermission" "144.120.114.32:1099" "connect,resolve")**. I have done a lot of search online but no one helps. I have tried **-Djava.security.debug=access,failure** and … 
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Hi everyone. I've been working on a Java RMI project for quite sometimes but then I stuck with an error which I have not idea what its cause. **Error: Could not find or load main class Program.bin** I have run the rmiregistry right and do the configuration such as arguments. …
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Hello, I've been trying to read txt from a file, and breaking each line into words and storing them in Array. Example. txt file C001 John Smith 999999 C002 Mary Agnes 888888 Here is my code. public class Customer implements iCommand{ static List<Customer> cust = new ArrayList<Customer>(); static private String … 
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Hello, Can anyone show me how to set width between character in java. I'm looking for something like this. Items NumOfItems Price A 2 $10 B 1 $5 When I use the for loop to make something like the table above it shows something like this. Items NumOf Items Price …
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Hello guys..!! I'm new to python and I have a task which require me to write a simple TCP server which will interact with the web browser. I have done some coding as well as researching over the internet to find relevant notes and materials but none helped. What I … 
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Can anyone pointed out what is wrong with this code. I got an annoying error something with Scanner method. import java.util.*; import java.io.*; //import java.lang.System.*; public class cTedit implements ICommand{ @Override public void Execute() { InputStream istream; OutputStream ostream = null; int x; final int EOF = -1; istream = …
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Is there any simple way to create a txt file with its name come from the user input. Also the file will be stored in a specific location such as C:\Users for example. Here is what I do but doesn't work. import java.io.File; import java.util.Scanner; public class cITF implements ICommand{ … 
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Why are some algorithm to solve TSP using dynamic programming can solve up to 10 cities while some can go beyond that...i.e. 10, 100 or more..!! What is the factor that determines the capability of the algortihm to solve more than 10 or less..?? 
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I am doing a school project which is an airplane collision detection system. Can anyone show me a few examples or pseudocode of implementation of closest pair algorithm O(n^2), O(n log^2 n), O(n log n)?
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