Weather Java application - Java Discussion Boards

Re: OutOfMemoryError exception while pushing in the stack

jschell10-Mar-18 10:23

jschell

10-Mar-18 10:23

Elenora wrote:
stack.push(s.charAt(i));

Only way that code can run out of memory is if that line is called way to many times.

how i encryt the file by aes need some help

SHUBHAM KHANDAR4-Mar-18 4:56

SHUBHAM KHANDAR

4-Mar-18 4:56

i made a form that select file and provide key i want to encrypt that file by aes encrytion in jsp
my form code is:=

<html>
<body bgcolor="#006699" text=#006699  >

<center>

<br>

<div style="width:95%;border-style:solid;border-width:3px;border-color:white;height:600px;border-radius:15px;background-color:white;box-shadow:-1px -1px 20px black" >

<img src=../images/titlebar.jpg width=100% style="border-radius:15px" >

<h1>Encrypt Document</h1>

<hr color=orange size=3px>

<form name=f1 method=post action=uploadfile.jsp enctype="multipart/form-data"  >

<input type=hidden name=demo value=demo >

<table>

<tr><td>Select File</td><td><input type=file name=filename required size=60 ></td></tr>

<tr><td>Enter Key</td><td><input type=text name=title size=80 required ></td></tr>

<tr><td></td><td><input type=submit name=btnencript value=Encrypt onclick=dosubmit() ></td></tr>

</table>

<hr color=orange size=3px>

</form>

</div>

</center>

</body>

</html>

Re: how i encryt the file by aes need some help

Richard MacCutchan4-Mar-18 6:22

Richard MacCutchan

4-Mar-18 6:22

java encrypt aes - Google Search[^]

Java Breakout via MVC Pattern

Rautap28-Feb-18 11:53

Rautap

28-Feb-18 11:53

Hey there,

I´m going to code breakout in java via the mvc pattern. And I have some problems with it.

Here´s my approach so far:

Model: coordinates of bricks, ball, panel and given coordinates by mouseListener

Controller: every physics, what happens with collisions, how to move the ball

View: every object that has to be drawn

But I´m not really cool with that because I´m not really confident about the implementation. And how do I put everything together to let the game run?

Grateful for any advice!

BetweennessCentrality

Member 1369070821-Feb-18 23:35

Member 13690708

21-Feb-18 23:35

BetweennessCentrality

Re: BetweennessCentrality

Richard Deeming22-Feb-18 0:39

Richard Deeming

22-Feb-18 0:39

Posting a single word is not a question.

At least your repost of this in QA[^] provided some details of the question.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Re: BetweennessCentrality

jschell23-Feb-18 13:42

jschell

23-Feb-18 13:42

Does make for a fast read though.

Weather Java application

Member 1367572517-Feb-18 3:20

Member 13675725

17-Feb-18 3:20

Hi i am a beginner user of Java and I want to make an weather Java program which use gui and the openweathermap api. Can anyone help me???

Re: Weather Java application

Richard MacCutchan17-Feb-18 4:01

Richard MacCutchan

17-Feb-18 4:01

See The Java™ Tutorials[^].

Please also read Forum Guidelines - PLEASE READ - Java Discussion Boards[^].

Re: Weather Java application

jschell17-Feb-18 11:44

jschell

17-Feb-18 11:44

1. Learn how to write a problem
2. Learn about sockets. Probably need to learn about http and Rest also (but I didn't look at the API.)
3. Learn about UI
4. Create a program that uses the weather API. This uses 1, 2
5. Create a program that displays the results. This uses 1, 2, 3, 4.

Re: Weather Java application

Lshadown19-Feb-18 8:30

Lshadown

19-Feb-18 8:30

You want to write a desktop or web application?

For loops, how to jump back to the start of the loop efficiently?

IrishCoder9916-Feb-18 11:39

IrishCoder99

16-Feb-18 11:39

Hello,
I am learning hoe to program in Java and have come up with some code to practice what I have learned. I have created a program to enter password and confirm it and the only way I have found to do this is to exit the program and try it again. Please help

Scanner scanner3 = new Scanner(System.in);
    String passwordConfirm = scanner3.nextLine();
    
    if (passwordConfirm.equals(password) ) {
      System.out.println("Your password has been confirmed");
    }
      else {
        System.out.println("The passwords do not match, please try again below");
        
       Scanner scanner5 = new Scanner(System.in);
       String passConfirm = scanner5.nextLine();
       
       if (passConfirm.equals(password) ) {
         System.out.println("The passwords now match, thank you");
         
         scanner5.close(); 
       }
         else {
           System.out.println("The passwords still do not match, please reload the app to try again");
          
           /**This line of code exits the Java program if the password is still not confirmed, forcing the user to reload the program to try again**/
           System.exit(0);
         }
      }

Your help is greatly appreciated! I have the same problem with confirming email but once I figure out password, I can do email myself.

Re: For loops, how to jump back to the start of the loop efficiently?

phil.o16-Feb-18 12:07

phil.o

16-Feb-18 12:07

A do-while loop is perffect for that:

Java

String passwordConfirm;
do {
   System.out.println("Please enter password:");
   passwordConfirm = scanner3.nextLine();
} while (!passwordConfirm.equals(password));
System.out.println("Your password has been confirmed");

will keep asking for password until the correct one is provided.
If you want only a fixed number of tries, you may have to declare a counter variable, increased in the loop, and tested in the while statement.

"I'm neither for nor against, on the contrary." John Middle

Re: For loops, how to jump back to the start of the loop efficiently?

IrishCoder9916-Feb-18 12:52

IrishCoder99

16-Feb-18 12:52

Hi there,
Thanks for the help. But could I ask where I place that code and the code I should replace with it? I can't seem to figure out where to put it and the code to erase. Thanks!

Re: For loops, how to jump back to the start of the loop efficiently?

phil.o16-Feb-18 12:53

phil.o

16-Feb-18 12:53

It could replace the whole code block you have shown, except the first line which declares the scanner3 variable.

"I'm neither for nor against, on the contrary." John Middle

Re: For loops, how to jump back to the start of the loop efficiently?

IrishCoder9916-Feb-18 13:10

IrishCoder99

16-Feb-18 13:10

Thanks a million, it has worked beautifully also with username. Thank you!

Re: For loops, how to jump back to the start of the loop efficiently?

phil.o16-Feb-18 21:17

phil.o

16-Feb-18 21:17

You are welcome.

"I'm neither for nor against, on the contrary." John Middle

Re: For loops, how to jump back to the start of the loop efficiently?

Richard MacCutchan16-Feb-18 21:54

Richard MacCutchan

16-Feb-18 21:54

If you need more learning materials for Java, then I thoroughly recommend The Java™ Tutorials[^].

java compiler

Member 136697248-Feb-18 23:06

Member 13669724

8-Feb-18 23:06

I Need Java Compiler source code

Re: java compiler

Richard Deeming9-Feb-18 0:05

Richard Deeming

9-Feb-18 0:05

java compiler source code - Google Search[^]

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Re: java compiler

Parul Thakur18-Feb-18 1:21

Parul Thakur

18-Feb-18 1:21

install the JDK. and search for src file

"C:\Program Files\Java\jdk1.8.0_131\src.zip"

unzip the file and enjoy !!

404 Error in Hibernate Web App

Member 136593343-Feb-18 4:32

Member 13659334

3-Feb-18 4:32

I'm doing hibernate web app from this tutorial: https://www.javatpoi...-with-hibernate and when I run url http://localhost:8181/register/ I get 404 error. Files are like in tutorial.
Project structure looks like this:
click

Re: 404 Error in Hibernate Web App

Member 136593347-Feb-18 2:44

Member 13659334

7-Feb-18 2:44

The answer is here:
How to resolve 404 Error with Tomcat Server and Eclipse .wmv - YouTube[^]

Adding Image Into Combox

Member 1360161428-Jan-18 6:53

Member 13601614

28-Jan-18 6:53

Good day.
May I know how to add an image into a combox in netbeans?
Can help, please...

Re: Adding Image Into Combox

Richard MacCutchan28-Jan-18 21:41

Richard MacCutchan

28-Jan-18 21:41

How to Use Combo Boxes (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)[^]

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.