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      تسجيل عضوية جديدة في المنتدى   01/31/2016

      السلام عليكم ورحمة الله وبركاته  عزيزي العضو الجديد :  حاليا رسالة الإيميل لتأكيد صحة إيميلكم تذهب للبريد العشوائي ( جاري حل المشكلة )  فإذا لم تجد رسالة التحقق من إيميلكم في صندوق الوارد لديكم إتجه للبريد العشوائي ( JUNK)  وقم بتفعيل إشتراككم من هناك   

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  1. <?php     if($objData->getRows('competitions') != 0){      $sql = "";      $comment_topic_id=0;      $file_redirect_name = "";      if(!isset($_REQUEST['compt_id'])){       $last = $objData->getLastId('competitions');       $sql = "select * from competitions where id=$last";       $comment_topic_id = $last;       $file_redirect_name = "competition.php";      }else{       $compt_id = $_REQUEST['compt_id'];       $sql = "select * from competitions where id=$compt_id";       $comment_topic_id = $compt_id;       $file_redirect_name = "competition.php?compt_id=".$compt_id;      }      $res = mysql_query($sql);      $row = @mysql_fetch_assoc($res);      $image = $row['attachments'];      $image_dir = "supervisor/attachments/competition/".$image;    ?>   اللي فاهم php يفهمني  :(
  2.   import java.util.*; public class Viginere {  /**   * @param args   */  public static void main(String[] args)  {   // TODO Auto-generated method stub   Scanner in=new Scanner(System.in);   String p="",c="",k="",l="abcdefghijklmnopqrstuvwxyz";   //System.out.print("wat d u want/ p 1 to enc or 2 to dec?");         //int m=in.nextInt();   System.out.print("give the pl text");    p=in.nextLine();        System.out.print("give the key");    k=in.nextLine();    int ky=k.length();    int pln=p.length();   String  y =k;   int m = pln%ky;       for( int i=1; i<pln/ky ; i++)    {     //if(i>=ky)      //i=0;     k=k+y;                                 //x.charAt((x.indexOf(K.charAt(j)) + x.indexOf(p1.charAt(j)))%27);    }   k=k+k.substring(0,m);     //System.out.println(k);   for (int j=0; j<pln; j++ ){    c=c + l.charAt((l.indexOf(k.charAt(j)) + l.indexOf(p.charAt(j)))%26);   }   c=c.toUpperCase();   System.out.println("Ciphertext"+c);      // Decryption   c = c.toLowerCase();      String pl = "";      for (int r=0; r<pln; r++ ){    pl=pl + l.charAt(((l.indexOf(c.charAt(r)) - l.indexOf(k.charAt(r))) +26 )%26);   }       System.out.println("decipher: "+p);         } } ياليت اللي عند خلفيه يشرح لي هالكود :"(
  3. اللي فاهم asp.net  يفهمني الكود الملون ب الاحمر الله يسعدكم :"(        using System;   using System.Collections;   using System.Configuration;   using System.Data;   using System.Linq;   using System.Web;   using System.Web.Security;   using System.Web.UI;   using System.Web.UI.HtmlControls;   using System.Web.UI.WebControls;   using System.Web.UI.WebControls.WebParts;   using System.Xml.Linq;   using System.Web.Configuration;   using System.Data.SqlClient;       public partial class SignIn : System.Web.UI.Page   {       protected void Page_Load(object sender, EventArgs e)       {           if (Session["ide"] != null)           {               Label status = (Label)Master.FindControl("label1");               status.Text = Session["status"].ToString();           }           else           {               Session["status"] = "you have Sign In first";               Response.Redirect("ESignIn.aspx");           }           if (!Page.IsPostBack)           {               Session["status"] = "";               Session["colorRow"] = "-1";               //Response.Redirect(this.Request.Url.ToString(), false);           }           Response.CacheControl = "no-cache";           Response.Expires = -1;       }       protected void gvHover_RowCreated(object sender, GridViewRowEventArgs e)       {           //Add CSS class on header row.           if (e.Row.RowType == DataControlRowType.Header)               e.Row.CssClass = "header";               //Add CSS class on normal row.           if (e.Row.RowType == DataControlRowType.DataRow && e.Row.RowState == DataControlRowState.Normal)               e.Row.CssClass = "normal";               //Add CSS class on alternate row.           if (e.Row.RowType == DataControlRowType.DataRow && e.Row.RowState == DataControlRowState.Alternate)               e.Row.CssClass = "alternate";       }                 protected void gvHover_RowCommand(object sender, GridViewCommandEventArgs e)       {           if (e.CommandName == "Select")           {               int index = Convert.ToInt32(e.CommandArgument);                   if (index == Convert.ToInt32(Session["colorRow"]))               {                   //gvHover.Rows[index].BackColor = System.Drawing.Color.White;                   gvHover.BackColor = System.Drawing.Color.White;                   gvHover.SelectedIndex = -1;                   gvHover.DataBind();                   Response.Redirect(this.Request.Url.ToString(), false);                   ////Label1.Text = "Details";                              }               else               {                   Session["colorRow"] = index.ToString();                   //Label1.Text = gvHover.Rows[index].Cells[6].Text;                   GridViewRow row = gvHover.Rows[index];                   HiddenField hf1 = (HiddenField)row.FindControl("HiddenField1");                   ////Label1.Text = hf1.Value.ToString();               }               }       }       protected void gvHover_RowDataBound(object sender, GridViewRowEventArgs e)       {           //gvHover.Columns[6].Visible = false;       }       protected void gvHover_PreRender(object sender, EventArgs e)       {          // gvHover.Columns[6].Visible = true;       }       protected void Button1_Click(object sender, EventArgs e)       {           string year = DateTime.Now.Year.ToString();           //string date = DateTime.Now.Month.ToString() + "/" + DateTime.Now.Day.ToString() + "/" + DateTime.Now.Year.ToString();           string s = WebConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;           SqlConnection con = new SqlConnection(s);           string sql = "insert into CourseClass (idc,idclass,idt,yearofstudy,timetable) values "                 + "(" + DropDownList2.SelectedItem.Value + "," + DropDownList1.SelectedItem.Value + "," + DropDownList3.SelectedItem.Value + " ,'" + year + "','" + TextBox4.Text + "') ";           SqlCommand com = new SqlCommand(sql, con);           con.Open();           com.ExecuteNonQuery();           con.Close();           Session["status"] = "the class is added successful";           //Session["image"] = newfileName;           gvHover.DataBind();           //Response.Write("<script>alert('Yesssss');</script>");           Response.Redirect(this.Request.Url.ToString(), false);       }       protected void gvHover_SelectedIndexChanged(object sender, EventArgs e)       {           }       protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)       {           }   }          
  4. مساعده في كود asp.net

    الله يسعدكم اللي فاهم asp.net يفهمني الكود اللي بالمرفقات :( protected void gvHover.docx
  5. مساعده في كود تسجيل الدخول :(

    حددت اللي مو واضح ب الاصفر اخوي using Syste1.docx using Syste1.docx
  6. بليز اللي يعرف يشرح لي كود تسجيل الدخول .. الكود بالمرفقات using Syste1.docx
  7. السلام عليكم اللي فاهمleft -right most derivation يساعدني :(  :(  :(
  8.  من يشرح لي هالمحاضره واكون له من الشاكريبن..     Chapter I : Introduction to Software Engineering and its impact on software development The crisis manifest: · Projects running over-budget · Projects running over-time · Software was very inefficient · Software was of low quality · Software often did not meet requirements · Code difficult to maintain The birth of software engineering The term software engineering was introduced at 1968/69 in Nato conferences. Software engineering is not an art, or a bag of tricks. We should build software like we build bridges. What is Software Engineering? The process of solving customers' needs by the systematic development and evolution of large, high-quality software within cost, time and others constraints. Solving cutomers' problems: · This is the goal of Software Engineering · Software Engineering must communicate effectively to identify and understand the problem Fig1. IEEE definition (Institute of Electrical and Electronics Engineers)   Types of software Custom: built to a specific customer Generic: sold on open market Embedded: built into hardware, hard to change Real time software: · Control and monitoring systems · Must react immediately · Safety often a concern Business information systems (Data processing) · Used to run businesses · Accuracy and security of data are key Requirements engineering includes: · Domain analysis · Defining the problem · Requirements gathering · Requirements analysis · Requirements specification: writing detailed instructions about how the software should behave.   Design : Deciding how the requirements should be implemented using the available technology. Includes: · Systems engineering: deciding what should be in hardware and what in software. · Software architecture: dividing the system into subsystems and deciding how the subsystems will interact · Detailed design of the internals of a subsystem · User interface design · Design of databases Implementation : Writing code Testing : · Does the software do what it is supposed to do? · Are we building the right system? (validation) · Are we building the system right? (verification) Maintenance : · Correcting errors found after the software has been delivered. · Adapting the software to changing requirements We distinguish: · Corrective maintenance: correcting discovered errors · Preventive maintenance: correcting latent errors · Adaptive maintenance: adapting to changes in the environment · Perfective maintenance: adapting to changing user requirements Software engineering ethics: · Act in a manner that is in the best interest of the client and employer · Maintain integrity in professional judgment · Ensure the product meet the highest professional standards possible Difficulties and risks in software engineering: · Complexity and large number of details · Uncertainty about requirements · Constant change
  9. يسعدكم ي رب اللي  عنده  خبره في ebnf    يشرحه لي بشكل بسيط وعليه مثال بليزززز :(
  10.  السلام عليكم ..  انا عندي سؤال وياليت احد يجاوبني عليه اللحين ايش هي طريقة عمل السيكونس دايقرام او ماهي كيفية عمل السيكونس دايقرام .. .. وهل هناك خطوات معينه امشي عليها .. وشكرا م
  11. اللي عنده خبره في depth-first ****** و spaning tree و breadth - first ****** متعلقه بدروس graph في مادة data structure لايبخل عليه محتاجه احد يشرحها ضروري عندي بكره اختبار فيها ..
  12. شرح out put

    بليز اشرحولي الاوت بوت .. لكل برنامج     usewarnings ; usestrict ; my($var,$nbr)=(2.53241,526) ; printf("\$var=%.2f \n",$var) ; printf("\$var=%.0f \n",$var) ; printf("\$nbr=%d\n",$nbr) ; ooutput\\ $var=2.53 $var=3 $nbr=526             #!/usr/perl/bin/ #block1.pl usewarnings ; usestrict ; my$var=4 ; #1 print"\$var =$var\n" ; { print"{\n" ; print"This is block scoped\n"; my$var=8 ; #2 print"\$var =$var\n}\n" ; } print"\$var =$var\n" ; #3   output\\ 4 { This is block scoped 8 } 4        
  13. شرح out put

     بليز اشرحولي الاوت بوت ع السريع ..   ليش%.0f  اخذت 3   usewarnings ; usestrict ; my($var,$nbr)=(2.53241,526) ; printf("\$var=%.2f \n",$var) ; printf("\$var=%.0f \n",$var) ; printf("\$nbr=%d\n",$nbr) ; ooutput\\ $var=2.53 $var=3 $nbr=526       وهنا اشرحولي البرنامج بليز وكيف طلع الاوت بوت ..   #!/usr/perl/bin/ #block1.pl usewarnings ; usestrict ; my$var=4 ; #1 print"\$var =$var\n" ; { print"{\n" ; print"This is block scoped\n"; my$var=8 ; #2 print"\$var =$var\n}\n" ; } print"\$var =$var\n" ; #3   output\\ 4 { This is block scoped 8 } 4
  14.  الله يسعدك دنبا واخره..
  15. هذي الجزئيه ماني فاهمتها في ملزمة  syntax and semantics   Grammars and derivations        The sentences of the language are generated through a sequence of applications of the rules, beginning with a special nonterminal of the grammar called the start symbol.A derivation is a repeated application of rules, starting with the start symbol and ending with a sentence (all terminal symbols)An example grammar:        <program> ® <stmts> <stmts> ® <stmt> | <stmt> ; <stmts> <stmt> ® <var> = <expr> <var> ® a | b | c | d <expr> ® <term> + <term> | <term> - <term> <term> ® <var> | const   An example derivation:  <program> => <stmts> => <stmt>                      => <var> = <expr> => a = <expr>                      => a = <term> + <term>                      => a = <var> + <term>                      => a = b + <term>                      => a = b + const   Every string of symbols in the derivation, including <program>, is a sentential form.A sentence is a sentential form that has only terminal symbols.A leftmost derivation is one in which the leftmost nonterminal in each sentential form is the one that is expanded.  The derivation continues until the sentential form contains no nonterminals.A derivation may be neither leftmost nor rightmost