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i want to know, what kind of addresses do pointers deal with? i mn logical or physical? and how can i access a particular memory area using pointers? PLEASE HELP....... |
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i was going thru an column in a book, which says:- For both classes and structs, you use the keyword new to declare an instance. This keyword creates the object and initializes it. Now if we use new operator for structures, then why is it not stored on heap???? I … |
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i was using mysql to connect to database in java. but it is throwing an error that is" access denied for use' '@'localhost' to database 'onlinetest' while installing mysql I DIDNT PROVIDED ANY USERNAME AND PASSWORD, IS THERE ANY PROBLEM WITH USER AND PASS AND WHAT TO WRITE IN USER … |
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i am working on a java project, one of its web pages includes this query:- [code] select pname,age,gender,dscrptn from patient where curdate='05-17-2011' and docref='arshdeep' and meet='no' [/code] but it is not working, i executed this in MS SQL, BUT ITS SHOWING ONLY THE COLUMN NAMES THERE. i.e pname age gender … |
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i am having problem in this code, i have written //ERROR, where i am getting error.... PLEASE HELP BASICALLUY, WHAT I AM DOING IS:- I HAVE A GENERATE AND OK BUTTON, WHENEVER I CLICK GENERATE BUTTON, A NEW SET OF INFO IS RETRIEVED FROM THE DATABASE AND THE TEXT FIELDS … |
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i making a system, in which at max 10 users can login and work independently. But the problem is that when a user logs out, i am just redirecting him to the login page, i want to end that session, so that IF HE CLICKS ON THE BACK BUTTON, HE … |
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i have made a jsp page, in which:- 1) I HAVE CERTAIN TEXT FIELDS 2) AN OK BUTTON 3) A GENERATE BUTTON. The problem:- When i click on generate button, info from database should get filled in the textfields. How can i do this? |
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i am working on a project in which, i have a text area and when the user enters some details in that text area, the data should be saved in a text file and the path should be saved in the database, when another user wants to access that text … |
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I am working on a project that has 2 persons. The first person acts as a receptionist and the 2nd as the boss. Whenever there is someone to meet the boss, i want the request should directly go onto boss's system WITHOUT THE USE OF ANY database. What could be … |
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NOTHING HAPPENS AFTER EXECUTING THIS CODE, BUT IT COMPILES AND RUNS SUCCESSFULLY [code]import java.io.IOException; public class Runx { public static void main(String args[]) { try { String x="cmd /c dir"; Process p=Runtime.getRuntime().exec(x); } catch(IOException e) { e.printStackTrace(); } } }[/code] Please help....................... |
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i am implementing a client server arch on LAN, what's more suitable for me to use, jsp or servlets????? let there be max 4 clients for a server...... i m done wid the designing part using AJAX and embedding those in jsp pages. made the database using sql server 2008. … |
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I was reading a bit about the JDBC, i've made a lot of programs related to JDBC, but i've never been able to understand the concept of Class.forName(). Please explain it fully, i know the basics, as what are the strings passed, what is done and all. I wanna know … |
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i am designing a small client server system for a hospital, in this system a receptionist will forward the details of patients as they come to the particular doctor, like i go with a problem related to skin disease, my case would be transferred to that particular doc, I am … |
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I WAS JUST EXPERIMENTING SOMETHING. AFTER COMPILING THIS I GOT THE ERROR: "<identifier>expected x=1;" i have got this error many times, but don't know why this occurs and also i have made the object of the class dabba in the dabba class's main method, is it wise thing to do?????? … |
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i made a jsp page, now i made a LAN named "ar", and connected another computer with "ar" network. Now i want that the client computer i.e. computer 2 should access my jsp page which is arsh.html , how to do this????? My approach: i set my IP as 192.16.1.44 … |
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what to do if i want to execute some statements in a loop till the user enters any key? i did this earlier but have forgotten the logic... example:- while(1) { printf("abc"); /*i want this code infinitely, but as the user presses any particular key it should stop the execution*/ … |
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I read a lot about the comparison between compiler and an interpreter, but what i found that, compiler compiles a file into .obj file which after linking becomes .exe file. But in the case of an interpreter, it interprets the code line by line and executes it directly... My question … |
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I had a doubt as how does adding more number of transistors in a M.P.increases its speed?? I know that the use of transistor in a MP is switching of current. The how does that helps to increase the speed pf MP. PLEASE HELP THANK YOU |
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i know what registers are, i know a lot of things about registers. but my problem is: a register is able to store data/instructions. like a 16 bit register can store 16 bit instruction/data BUT HOW MUCH DATA/INSTRUCTIONS CAN IT STORE AT THE SAME TIME? like an accumulator is used … |
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i am unable to understand WHAT MAKES THE BYTECODE IN JAVA, MACHINE INDEPENDENT. I mean how does the bytecode built after compilation becomes machine independent, or what are the properties that make the bytecode machine independent? EXAMPLE:- If i compiled a program on a x86-64 machine and after sometime i … |
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why do we need data structures, if it is a way of storing data in computer in an efficient way, then the computer itself has the ability to store the data in an efficient way, why do we create linked lists n other stuffs. why do we use stacks,trees n … |
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I have a serious doubt for this:- Why do we give the url like c:\program files\java\jdk for user environment variables and c:\program files\java\jre for system environment variables? PLEASE HELP ASAP........ |
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when we write [javac abc.java] a bytecode is generated. AND THE BYTECODE CONTAINS INSTRUCTIONS FOR THE JVM and each instruction is 1 byte in length. NOW my question is where does the interpreter comes into action and what happens after the bytecode is generated. I was told that interpreter produces … |
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Hi there, i am just having some doubt in understanding win32 api. Can anyone please explain it, in simple language. I ALSO WANTED SOME INFO ABOUT WIN32 EMULATOR ON OTHER PLATFORMS..... THANK YOU |
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Hi there, i am a naive in CS, i wanted to know the use of configuration files in the OS. And how the registry in Windows platform is used for configuration files? PLEASE HELP THANK YOU |
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It is said that JAVA is very safe, as the JRE is allocated a dedicated space in the RAM all of the time. Therefore, no virus can piggy back............ Can anybody explain this concept of JRE getting space in RAM and HOW MUCH SPACE IS IT ALLOCATED IN RAM? THANK … |
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what is the difference between a simulator and an emulator? Please define both of them too, i am really confused with the working of DOSBOX emulator |
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i wanted to know about any company in india that teaches touch screen related programming in java. As i am really interested in touch screen programming. Please let me know any company related to that. |