new_programmer

Hi, I m new to android mobile appn devlp. Pls suggest me study materials for that. I hav 2 years of xprns in core java appl devlp. I want full detail of 1. how to learn ? that means where to start ? 2. simulators or emulators available 3. Text …

what is the use of constructors in java when we can intialize objects directly

a program that displays the first n prime numbers.

I have this method to see whether not the year is a leap year or not. heres the code i get the error missing return statement at the end. What can i do , i can't add return true or return false, becuase that screws it up. public boolean isLeapYear() …

Can anyone explain to me in simple English language why we can't use assertion for: 1) Argument checking in public methods. [CODE] public class Test{ public void abc(int a){ assert a>3 } } [/CODE] 2) Command line arguments. [CODE] public class Test{ public static void main(String[] args) assert args.length==3 } …

Helooo, Attached is a pic of my main screen of my program. Basicly it's a phone book app similiar to one you'd have on your phone. The thing that I can't wrap my mind around, is that you see the nice big textArea there? After you've added a contact now. …

I was browsing the web for examples on how to partition in Java. [URL="http://www.cs.princeton.edu/introcs/23recursion/Partition.java.html"]I've got to this website that has a detailed example about Partitioning[/URL] so I've tried to run it on my JCreator Pro. I've only got one error, but I've tried all I can do to fix it …

Write a program to enter a score and a points possible for a test, computer the percent, display the percent to 1 decimal place and then display the letter grade (A – F) using a standard scale (90, 80, 70, 60) – use the if ... else if ... else …

hey im just having a bit of a problem on reading input from a text file. I know that it is probably something simple but I keep overthinking it. Here is what I am trying to do: I'm trying to read in a line of text that contains musical notes. …

Hi guys, I am starting my project and thought You pple could give a hand.I want to develop a stand-alone [I]real property management system[/I]in Java (netbeans platform)...I have some problems in [B]design and content of the system[/B].I would greatly appreciate any assistance on the same ..no of databases(mysql),forms and such..(design) …

Hi all, I am student and in two days I gine exams Java. I need your help to understand the below exercise. I have to explain all the lines from class RunParent [CODE]class Parent { double value = 0; public Parent() { value = 1.0; System.out.println("Parent value " +value); } …

Hello, I am starting to learn java and I was wondering if anyone know of any resources/websites that have projects I could attempt to improve my skills and expand my java knowledge? Thanks.

Hello, I am having trouble with my Odd/ Even Code. Can anyone help me with this? Or has a current code?

Hi all, I have no idea about C#. I know that its a good language +****************************************************+ | I DON'T NEED ANY HYPERLINKS( EXCEPT:Good Sites) | +*****************************************************+ My questions are the following ------------------------------- 1. What is the difference between C#, C++,VB.NEt? 2. What is .Net , is C# and C++ .Net …

List<InputStream> pdfs = streamOfPDFFiles; List<PdfReader> readers = new ArrayList<PdfReader>(); I saw many programmers using this syntax . I didnt get it? Can anyone help me to expalin this in detail ie. <InputStream> what does this mean? and can i implement this same idea with any other code which is simpler?

Hi, Can any one say what is the difference between the implicit and explicit? Thank you, With Regards, Prem

BufferedReader example pls. thanks

how OOPS concept playing roles in terms of compile time and run time polymorphism. how inheritance and encapsulation and polymorphism applied in real time application. when and where and how to decide this oop concept fit for this like java bean,interface,abstract,etc?

Hey there! How do i read 2 files, one after another and then storing it into 2 seperate array? This is the code for reading 1 file. So, how do I read 2 files? The array would be a 3x3 2D array. [CODE]File dir = new File("1A6G.pdb"); //set file String …

hye em new to java ...i have 15 days to learn it...after that i hav to pick my final year project...i hav gone through many tutorials but they are not enough....can any body hav some material to learn Java easily and quick...m using netbeans 6.7.1....n want a full command on …

guys i cant hit on the rite path...i love programming and i recently decided to go with java..but some people say that go with vb.net its better than java because its more demanding while i think that what ever you do,do it way that no way is better in that …

I want detailed explanation about static int var; final int var; static final int var; Please explain it in the memory implementation level. If there is any mistake in these please explain. __________________

How hard is it to learn Objective-C for iPhone Apps if you know C++, C and Python already? Is it better to use that rather than just C++ code when writing Apps? If so, why? I want to start iPhone Development and recently got an iMac for my Birthday. How …

What is the difference between pointer and reference Please explain in detail. I want its full concept , so pls explain in detail

[CODE]import javax.swing.*; import java.awt.*; class drawer extends JPanel { Color color; int x; drawer(int x,Color color){ this.color=color;//color of rectangle this.x=x;//size } public void paintComponent(Graphics g) { super.paintComponent(g); g.drawRect(0,0,x,x); g.setColor(color); g.fillRect(0,0,x,x); } } public class layers { public static void main(String[] args) { JLayeredPane layerd=new JLayeredPane(); layerd.setSize(800,800); layerd.setVisible(true); layerd.add(new drawer(50,Color.BLUE),2); layerd.validate(); …

Can somebody help me i want to send a mail for forget password n iwant to send a link of my reset password page in it please help me Thanks in advance

is there any layout manager or some other way to add a label or any other component starting from a specific point like we draw rectangles i need this because i want to move the label around with input.

I have 3 separate questions. I'm trying to develop a program that displays several vocabulary lists and has a row of buttons at the top for selecting the lists. These buttons don't appear until I re-size the window. Does anyone know why this occurs? Second, I've extended the JPanel class …

How would you split an existing string where a chararacter occurs into an array of strings, and store that character in a char? For example, inputting 123a5 would return {123,5} in an array and 'a' in a char. I've confused myself with this. I will greatly appreciate any help.

hi everybody!!! im new in developing systems using java.. i want to develop any system i need help. i dont know what to do. if you have any idea on what i can do please help..