Java

Re: Ant colony system for solving a shortest path in a multimodal transport

24-May-17 10:07

Hello;
I'm beginner in java ; I want to implement the ACO algorithme for solving a problem of shortest path (minimize the time of target) in java and I don't know where I should start.
Please I need a help if you have.
thanks;

Richard MacCutchan24-May-17 21:15

Re: Ant colony system for solving a shortest path in a multimodal transport

24-May-17 21:15

Start with something simpler. You say you are a beginner, so what have you actually learned up to now? Have you worked through all the tutorials at The Java™ Tutorials[^]?

Member 1322085424-May-17 21:38

Re: Ant colony system for solving a shortest path in a multimodal transport

24-May-17 21:38

Thank you for your answer;
yes,I read a lot of toturials for java and I win to implement an interface for writing the informations of my subject(departure and arrival hours of vehicle and their price ; target time...) in a file .txt
and reading them .
now I need to know how can adapt the ant colony system for this problem? what is the steps?
thank you in advance.

Richard MacCutchan24-May-17 21:50

Re: Ant colony system for solving a shortest path in a multimodal transport

24-May-17 21:50

Member 13220854 wrote:
what is the steps?

1. Research the subject.
2. Create a design for your program (GUI or Text based)
3. Code and Test.

Member 1322085425-May-17 0:38

Re: Ant colony system for solving a shortest path in a multimodal transport

25-May-17 0:38

I'm in last step"code and test" and I have a problem in this step exactly.
I implement the graph (nodes "cities"; arcs"line of the mode of transport" and the modes of transport )
now I search to know how can implement the algorithm of ant colony system for calculate the minimum times for a travel from a node source to a node destiation ?
Thank you for your help.

Richard MacCutchan25-May-17 0:39

Re: Ant colony system for solving a shortest path in a multimodal transport

25-May-17 0:39

Implementing an algorithm is merely writing the code to do the calculations. I do not know this algorithm so cannot offer any suggestions.

Member 1322085425-May-17 0:41

this.submitForm - Help with Custom Subject Line

25-May-17 0:41

so thanks a lot for your help ;

Member 1322073224-May-17 8:16

Member 13220732

24-May-17 8:16

Hi all,

I am trying to execute javascript in a PDF that will allow the form to be submitted via email with a subject line that will pull a value from a field in the form. I am able to get the email portion to work, but I have not been able to customize the subject line to pull from the field. Below is the base script I am using to send the email without the customized subject line:

JavaScript

this.submitForm({

		cURL: "mailto:aamos@lrrc.com?subject=TSC Form&body=",

		cSubmitAs: "PDF"

	});

The field I am wanting to pull from is labeled "Name". Below was one of my attempts, all of which have not worked.

Failed Script:

JavaScript

this.submitForm({

		var Name = this.getField("Name").value;

       		cURL: "mailto:aamos@lrrc.com?subject=TSC Form (Name)&body= ) ",

        	cSubmitAs: "PDF"

	});

Can some one point me in the right direction or help me with where I went wrong in the script? I am new to this, and glad I was able to execute the first script successfully but I feel I am in over my head with the customization.

Thanks in advance your your assistance.

AA

Re: this.submitForm - Help with Custom Subject Line

NotPolitcallyCorrect24-May-17 9:28

NotPolitcallyCorrect

24-May-17 9:28

Member 13220732 wrote:
javascript

javascript != java. You might have better luck asking in the appropriate forum.

Speed of sound - 1100 ft/sec
Speed of light - 186,000 mi/sec
Speed of stupid - instantaneous.

Re: this.submitForm - Help with Custom Subject Line

Member 1322073224-May-17 9:41

Member 13220732

24-May-17 9:41

Thank you! As you can tell, I am a rookie. Googling only gets you so far. I have reposted, thank you!

H2 database (SQL) syntax error

Ashford Tulgaa14-May-17 21:43

Ashford Tulgaa

14-May-17 21:43

UPDATE data SET 
           full_name = "SARA",              //Type of String
           reg_num = "dawdawdaw",           //String
           note = "note",                   //String
           price = 15,                      //int 
           date = 2017-05-17,               //java.sql.Date
           totalPay = 16,                   //int
           expiration_date = 2017-06-16,    //java.sql.Date
           WHERE id = 1;                    //int

if I run this SQL statement it throws the following syntax error: 

WHERE[*] id = 1 "; expected "identifier"; SQL statement:

What did I do wrong?

modified 15-May-17 4:09am.

Richard MacCutchan14-May-17 21:56

14-May-17 21:56

Is this Java code? If so, then some of your variables look to be in the wrong format. Strings need to be bounded with double quotes. Not sure about those data values.

Ashford Tulgaa14-May-17 22:04

Ashford Tulgaa

14-May-17 22:04

Thanks for your reply I edited the values of the String type with the double quotes

Jochen Arndt14-May-17 23:12

Jochen Arndt

14-May-17 23:12

You have an additional comma after the last column to be set:

Java

expiration_date = 2017-06-16,    //java.sql.Date

The parser expects another column to be set beginning with an identifier but it found the WHERE keyword.

So remove that comma:

Java

UPDATE data SET 
           full_name = "SARA",              //Type of String
           reg_num = "dawdawdaw",           //String
           note = "note",                   //String
           price = 15,                      //int 
           date = 2017-05-17,               //java.sql.Date
           totalPay = 16,                   //int
           expiration_date = 2017-06-16     //java.sql.Date
           WHERE id = 1;                    //int

Ashford Tulgaa14-May-17 23:14

Ashford Tulgaa

14-May-17 23:14

Thank you so much it works now Smile | :)

Richard Deeming15-May-17 8:01

Richard Deeming

15-May-17 8:01

Are you sure? I suspect you'll probably need quotes around the date values. Otherwise, 2017-05-17 will become 1995. Smile | :)

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

Richard MacCutchan15-May-17 20:49

15-May-17 20:49

"it's working now" probably means no exceptions were thrown. Wink | ;)

Help me with CreateProcess error=216 and Gradle error in Android at fist build

Patrice T21-May-17 12:34

Patrice T

21-May-17 12:34

Dates are not handled this way.
This

SQL

date = 2017-05-17

translate as

SQL

date = 1995

Date Functions in SQL Server and MySQL[^]

Patrice

“Everything should be made as simple as possible, but no simpler.” Albert Einstein

Cao Khả Tú11-May-17 20:45

Cao Khả Tú

11-May-17 20:45

Dear Friends, When build MyFristApplicationAndroid, It appear error message below:
Error:CreateProcess error=216, This version of %1 is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need a x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher
I choose struct project and repair.
I delete C:\Program Files\Android\Android Studio\jre
And I update C:\Program Files\Java\jdk1.8.0_131

And I have had the second error below:
Error:A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugUnitTestApkCopy'.
> Could not resolve junit:junit:4.12.
Required by:
project :app
> Could not resolve junit:junit:4.12.
> Could not get resource 'https://jcenter.bintray.com/junit/junit/4.12/junit-4.12.pom'.
> Could not GET 'https://jcenter.bintray.com/junit/junit/4.12/junit-4.12.pom'.
> Connect to jcenter.bintray.com:443 [jcenter.bintray.com/108.168.243.150] failed: Connection timed out: connect
I HOPE YOU HELP ME REPAIR 2 ERRORS ABOVE. THANK YOU SO MUCH.

Re: Help me with CreateProcess error=216 and Gradle error in Android at fist build

Richard MacCutchan12-May-17 3:11

Re: Help me with CreateProcess error=216 and Gradle error in Android at fist build

12-May-17 3:11

Cao Khả Tú wrote:
Connect to jcenter.bintray.com:443 [jcenter.bintray.com/108.168.243.150] failed: Connection timed out: connect

We cannot fix your internet connection.

wseng21-May-17 21:49

wseng

21-May-17 21:49

The issues was fixed.

Help Me With CreateProcess Error=216 And Gradle Error In Android - Java | Dream.In.Code[^]

How do we make responsive software???

Member 1319306610-May-17 20:07

Member 13193066

10-May-17 20:07

How do we make responsive software??? ;)

Re: How do we make responsive software???

Richard MacCutchan10-May-17 23:45

I need help with a Java program !!

10-May-17 23:45

The same way you make any type of software.

Member 131899649-May-17 9:54

Member 13189964

9-May-17 9:54

A small Off Broadway Theater is opening in Manhattan. The theater consists of an orchestra section and a balcony. The manager purchased a computer for its automated ticket system; and you’ve been awarded the contract to program the test system that will assign seats for the Opening Night of “String Man”.

Your program should display the following choices: Please enter 1 for orchestra and 2 for balcony. If the person types 1, your program will assign a seat in the orchestra section (rows 1-10, 20 seats per row). If the person types 2, your program should assign a seat in the balcony section (rows 11-20, 15 seats per row).

Use a two-dimensional irregular array of primitive type boolean to represent the seating chart of the theater. Initialize all the elements of the array to false to indicate that all seats are empty. As each seat is assigned, set the corresponding elements of the array to true to indicate that the seat is no longer available.

Your program should never assign a seat that has already been assigned. If either the orchestra section or the balcony becomes full, your program should display a message indicating that section is full; and ask the user if they would like a seat in the remaining section. If the user responds, “no”, your program should display the string, “Next performance is in one week”. If both sections are full, your program should display the string, “Sorry, Opening Night is Sold Out”.

When a seat is assigned, your program should print out a ticket indicating the row and seat assignment.

Re: I need help with a Java program !!

Richard MacCutchan10-May-17 23:46