fardoonmuhafiz

I am new to programming, so please accept my apologies if this question is simple. I have a class (say called Student). I want to store the name of the student (name) and the course (course) I have declared some variables in my Student class: [code] private String name = …

hi I am really having a problem on making a project of inventory system in Java. The project says: The inventory control system should have 1. Login in to the system. 2. Adding new items. 3. Modifying data of selective item. 4. Deleting existing items. 5. Check the stock availability. …

hi, i deployed a webapplication(wapp1) having input.html and a servlet(Servlet1) in tomcat web server. The form input.html just accepts a text and when u click on the button click the request is sent to servlet in wapp1. The request is redirected to a servlet(Servlet2) which is in a webapplication(wapp2) deployed …

Which is the most efficient way of creating a string object in java? [icode]String s="helo";[/icode] or [icode]String s=new String("helo");[/icode] in terms of memory usage? Thanks in advance...

Does J2EE support Enterprise applications? Is Java Beans an application dependent components? Does JavaBeans support sharing among the network? 1 Javabean can contain how many classes? Does Servlets execution starts with main methods?

hi, i'm trying to run a servlet code, but i get "HTTP Status 404 - Servlet Update2 is not available" error. i checked code, its perfect, web.xml is correct. but i did not find any .class files in my web-inf/classes directory. how could i get servlet .class files in web-inf/classes …

Why java doesn't support multiple inheritance?thank you....

Hello All, Can anybody plz guide me how to write a new method in servlet. I am using netbeans 6.8 A code snippet will be highly appreciated. Also I will be calling these method of servlet B from servlet A. In Servlet A there are 2 hyper links, which should …

hello please help me i have a program and i want to connect to the database i don't have any idea on how to connect because im still a begginer on this..help me please how to connect to the database,hoping for your positive responds

If a class doesnt override toString() method and tries to print out the object like this: //some class [code] public class SomeClass1{ int x=4; } //another class class DemoOftoString { public static void main(String[] args) { SomeClass1 o=new SomeClass1(); System.out.println(o); } } [/code] output:SomeClass1@hex version of object's hash code ------------------------------------------ …

[CODE]import javax.swing.JOptionPane; public class test{ public static void main(String args[]){ String numT = JOptionPane.showInputDialog(null,"Please enter a value."); double num1 = Double.parseDouble(numT); System.out.println("Fahrenheite = "+num1+"\nCelcius = "+convertFtoC( num1 )); } public static double convertFtoC ( double num1 ){ return ((5/9)*(num1-32)); } }[/CODE] why the value return is zero? hrm... can anyone …

can anyone explain what is a lightweight application?....Thanks

Hi, I have a doubt here, plz go thru the code snippet here: Statement st=con.createStatement(); ResultSet rs=st.executeQuery("select * from emp"); Statement and ResultSet are interfaces. executeQuery() method of Statement interface returns a ResultSet object here. That means defnitely Statement should implement ResultSet interface methods to return a ResultSet object, but …

Hi, whilst reading a book on Java, I came across a bit where the author used [CODE] GregorianCalendar now = new GregorainCalendar(); [/CODE] And I was just wondering, is that any different from [CODE] Calendar now = Calendar.getInstance(); [/CODE] And if so, why did he use GregorianCalendar instead of the …

hello everyone, Output is coming not equal for same input.what is the error in this program? import java.util.*; class newobj_equal { public static void main(String[] args) { int eid; String ename; double salary; Scanner sin=new Scanner(System.in); System.out.println("Enter eid");z eid=sin.nextInt(); System.out.println("Enter ename"); ename=sin.next(); System.out.println("Enter salary"); salary=sin.nextDouble(); emp e1=new emp(); e1.accept(eid,ename,salary); e1.display(); …

Is there a function with the scanner class to allow for the user's input to just go on one line instead of two. I am using Scanner scan = new Scanner (System.in) with scan.nextInt and it is coming up with 10 4 and I want it to appear on one …