| Subject | Date Asked | Expert |
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| Max integer value | 11/20/2009 | Artemus Harper |
Q: I need to know how to do dynamic program on collatz conjecture. i.e for x = 1 to maxofinteger ...
A: You can use long (instead of int), which has twice as many bits and a much bigger value (big enough ...
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| Java Fundementals Book program 5-4 | 11/19/2009 | Artemus Harper |
Q: hey the porgram problem i have is this, my AP CS teacher aasked us to try and write a program like ...
A: You need a class Dice. That class has a single field current, it should be private. Add a method to ...
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| Displaying Bitmaps | 11/19/2009 | Artemus Harper |
Q: I just ran into this previous answer you gave: http://en.allexperts.com/q/Java-1046/java-swing-2.htm ...
A: Its pretty easy to implement your own zoom. You can simply: float scale = ...; Point scaleCenter = ...
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| SCJP | 11/18/2009 | Artemus Harper |
Q: This program will not compile. Cannot find symbol: variable passengers. /* A program that uses the ...
A: You have: class Vehicle2 { int passengers; // number of passengers int fuelcap; // fuel ...
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| Java Palindrome No. | 11/18/2009 | Artemus Harper |
Q: please assist me in making a java prog. for checking a palindrome no......and please tell me if the ...
A: To 'peel' off a digit from a number you can: int num = ...; int remaining = num; while(remaining != ...
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| SCJP | 11/17/2009 | Artemus Harper |
Q: This program will not compile. Cannot find symbol: variable passengers. /* A program that uses the ...
A: You are creating a new instance of Vehicle, not Vehicle2 as you have declared above. The compiler is ...
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| java or C++ security comparison | 11/17/2009 | Artemus Harper |
Q: I want ot know when it comes to security, that is securing your applications and softwares and ...
A: Java will be a better choice as one of the primary focuses of Java is security. Most exploits in ...
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| java performance and full control of the hardware | 11/17/2009 | Ziv Ben-Eliahu |
Q: I was thinking if java can take the advantages of C++ in performance(speed) and full control of the ...
A: Some years ago Java was solwer than C++. Now days, Java 1.6 can be faster than C++. Both Java and ...
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| Java Programming | 11/17/2009 | Artemus Harper |
Q: Well I have question than I am curious about. I want to know if it is possible to write a method ...
A: To determine if a number is a power of 2 you can use the trick: if((n & -n) == n) { //power of 2 ...
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| Java DesktopPane | 11/15/2009 | Artemus Harper |
Q: Sir i m develping desktop application in netbean. first problem is that of ApplicationView ...
A: 1. I'm not sure what the ApplicationView class is. It is not a class in the standard Java API, so I ...
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| dictionary in java | 11/14/2009 | Neal Ziring |
Q: i want to make a dictionary in java.can you give me a code?
A: Shovon, > > i want to make a dictionary in java.can you give me a code? > I'm sorry, but your ...
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| Counting sub-sets | 11/14/2009 | Ziv Ben-Eliahu |
Q: Can you please tell me this program? I would greatly appreciate it! I dont even know how to begin ...
A: We know that there are 2 by the power of the set size possibilities. For example, this set's size ...
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| Easy Counting Program? | 11/14/2009 | Neal Ziring |
Q: Can you please tell me how to write the following program? I would greatly appreciate it! I dont ...
A: Ryan, This is not a trivial program to write, especially if you want to be reasonably efficient ...
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| Easy Counting Program? | 11/14/2009 | Artemus Harper |
Q: I need some hints on how to proceed to write the program, specifically on how to set up the ...
A: The first thing you should notice is that if some set is not valid, than all super sets of that set ...
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| java | 11/12/2009 | Neal Ziring |
Q: sir, Tell me how to save the output in textpad. for example, for(int i=0;i<9;i++) { ...
A: Sri, > sir, > Tell me how to save the output in notepad. for example, > for(int i=0;i<9;i++) > ...
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| Output to file | 11/12/2009 | Ziv Ben-Eliahu |
Q: please tell me how to save the output into a text pad. the following code is showing output in ...
A: You have two easy ways: 1) when running the Java program redirect the output into a file: Usually ...
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| j2ee | 11/12/2009 | Neal Ziring |
Q: I wrote dis program…its working fine but i want to store encrypted data in seperate .txt file and ...
A: Sujatha, > i stored encrypted data in one file and i am decrypting dat file but it > giving error ...
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| calling an array from constructor | 11/10/2009 | Ziv Ben-Eliahu |
Q: I am writing a program about a long jump competition. At the being the program you state how much ...
A: There are a couple of things you should consider. 1) Why are using array int[] and not ArrayList? ...
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| Logic circuit | 11/8/2009 | Artemus Harper |
Q: Sir, plz am jus a beginer in java, i want to write a program using swing gui to build logic circuits ...
A: This problem is best solved by simply doing your own drawing. Nothing in swing will help you much ...
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| Swing, Logic-circuit | 11/8/2009 | Ziv Ben-Eliahu |
Q: Sir, plz am jus a beginer in java, i want to write a program using swing gui to build logic circuits ...
A: I can't give you code as this task is a bit complicated and seems like a homework. I can give the ...
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| Compare two .CSV | 11/7/2009 | Artemus Harper |
Q: I Want to compare two .csv file and check..if the entries are equal Well not exactly.equal..with 3% ...
A: This is pretty simple: First create a Reader to read text in: BufferedReader reader1 = new ...
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| javac | 11/6/2009 | Artemus Harper |
Q: Im currently teaching myself java from different tutorils on the internet. verytime I try compiling ...
A: when you install the Java SDK it does not add the compiler to the PATH, only things on the PATH and ...
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| Classpath usage | 11/6/2009 | Ziv Ben-Eliahu |
Q: Good day there! I have here a link to a built-in class of what I am going to use, but I don't know ...
A: Don't extract the JAR file. If you use an IDE (such as Eclipse or Intellij) then you should go to ...
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| deadly diamond of death pblm | 11/3/2009 | Beenish |
Q: I am learning java nw.I saw that java doesn't allow multiple inheritance because of this pblm. As a ...
A: Well, first you should completely understand what is the deadly diamond of death. Lets say, if Java ...
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| Big O Notation problem | 11/2/2009 | Artemus Harper |
Q: I wanted to evaluate an algorithm and my adviser told me to use the Big O notation. I really don't ...
A: Your processor can probably help you better than I can. The Big O of an algorithm is a calculation ...
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| Class usage | 11/2/2009 | Ziv Ben-Eliahu |
Q: Good day there! I have here a link to a built-in class of what I am going to use, but I don't know ...
A: The link is for the statistics methods in class rvl.stat.dist.Tukey. I am not an expert in ...
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| Packet sniffing | 10/31/2009 | Neal Ziring |
Q: I was testing my home network and I used a packet sniffer to capture packets on my network, but the ...
A: Tony, It depends on what protocol was used for the encryption. I'm afraid you haven't given me ...
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| Stop Words | 10/31/2009 | Ziv Ben-Eliahu |
Q: Sir, I want to make a program which can remove the stop words. I tried to do it using StopWords ...
A: I'm sorry but there isn't enough information to answer this question. What is the full name of the ...
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| which language to use for developing apps | 10/31/2009 | Artemus Harper |
Q: I've a strong attitude towards programming, software engineering. I want to develop some cool apps ...
A: I use Java since it runs pretty fast without having many of the pitfalls of c++. The language you ...
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| maze problem | 10/30/2009 | Neal Ziring |
Q: I have read your instructions about finding the all paths in the maze at ...
A: John, Actually, the link you gave was a response by Ziv Ben-Eliahu talking about how to extend my ...
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| calling c++ namespaces and objects from java | 10/30/2009 | Neal Ziring |
Q: i need lot of help in JNI with c++.i have a source code for which i will have to make .so file and ...
A: Sitaram, Okay, I understand what you are trying to do. Using JNI is not very hard, but it ...
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| j2ee | 10/30/2009 | Beenish |
Q: I hv to do encrypt and decrypt the java file from servlet using RSA algorithm....Plz give me any ...
A: RSA is basically a algorithm use to encrypt and decrypt your data. Java 1.5 provides with RSA ...
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| JLabel in JTable | 10/30/2009 | Artemus Harper |
Q: Harper I m Nirav Raval Frm India. At now i m develop one Windowbased Application in java ...
A: Set the default renderer (for the Object class) in your JTable (using setDefaultRenderer) to a ...
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| j2ee | 10/29/2009 | Beenish |
Q: Please i need source code for java api information from java program Thanks in advance.... ANSWER: ...
A: Well Sujatha, It is called generating API documentation of your java program. Well, any good id ...
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| Learning Java | 10/28/2009 | Beenish |
Q: I know nothing about Java, but have seen many job opportunities for people who know Java and have a ...
A: Well you are right, Java is the language of choice for the market because of its platform ...
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| Array assignment | 10/28/2009 | Artemus Harper |
Q: i am in a beginning level Programming class and we were assigned to basically, from my ...
A: The array classes don't have any special implementation of toString(), you can use: ...
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| socket programming | 10/28/2009 | Artemus Harper |
Q: I ran simple example of socket programming in Java that caught it from www.sun.com (KnockKnockServer ...
A: You can either debug the application in an IDE (such as eclipse or netbeans) and hit the suspend ...
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| Exception handing | 10/28/2009 | Artemus Harper |
Q: i've to know what is the difference between PrintStackTrace and Exception and getMessage in ...
A: printStackTrace method prints the message and the stack of the current thread when the exception was ...
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| j2ee | 10/26/2009 | Neal Ziring |
Q: Please I need a a code of how to encrypt and decrypt files in Java with RSA algorithm. Thanks in ...
A: Sujatha, There are several good examples available out on the web, and I'll list some for you ...
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| face recognition using java | 10/25/2009 | Beenish |
Q: We have chosen face recognition as our 3rd year project.Still we are learning about the algorithm ...
A: Well, it's a third year project and if i remember, i even did my final project in image processing ...
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