Vazifalar ro‘yxati

Unit pxx3;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, StdCtrls;

type

Tform1 = class(Tform)

ListBox1: TlistBox;

Button1: Tbutton;

Button2: Tbutton;

Edit1: Tedit;

Memo1: Tmemo;

Label1: Tlabel;

procedure FormCreate(Sender: Tobject);

procedure Button1Click(Sender: Tobject);

procedure Button2Click(Sender: Tobject);

procedure Edit1KeyDown(Sender: Tobject;var key: Word;

Shift: TshiftState);

private

{ Private declarations }

public

{ Public declarations }

end;
var

Form1: Tform1;

a:Array[1..10] of integer;

k,I,maxx,minn:Integer;

s1,s2:String;

implementation

{$R *.dfm}
procedure Tform1.Button1Click(Sender: Tobject);

begin

ListBox1.Items.Add(Edit1.text);

i:=i+1;

a[i]:=StrToInt(Edit1.text);

Edit1.SetFocus;

end;
procedure Tform1.FormCreate(Sender: Tobject);

begin

i:=0;

ListBox1.Clear;

end;
procedure Tform1.Button2Click(Sender: Tobject);

begin

minn:=a[1];

maxx:=a[1];

For k:=1 to 10 do

Begin

If minn>a[k] Then Minn:=a[k];

If maxx

End;

Str(maxx:5,S1);

Str(minn:5,S2);

Memo1.Clear;

Memo1.Lines.Add(‘Eng kattasi=’+s1);

Memo1.Lines.Add(‘Eng kichigi =’+s2);

end;
procedure Tform1.Edit1KeyDown(Sender: Tobject;var key: Word;

Shift: TshiftState);

Begin

If key=13 Then Button1.SetFocus;

End;
end.

M i s o l 6.

Butun qiymatli A(10) massiv elementlari ichidan eng kata va eng kichiklari topilsin. Ilovada ComboBox komponentasini ishlating.

E ch i sh

1.Yangi ilova yaratamiz.

2.Formaga Standart komponentalar palitrasidan ComboBox komponentasini ComboBox1 nom bilan, Memo komponentasini Memo1 nom bilan va ikkita Botton1 va Botton2 tugmalarini o’rnatamiz.

3.Oldingi misol kabi bu komponentalarning xossalarini ham o’rnatamiz va dastur kodlarini ham kiritamiz. Hamma dastur kodlari “kiritish” tugmasiga boғliq, ya’ni Botton1 moduli kodlari quyidagicha bo’ladi.

ComboBox1.Items.Add(Combobox1.text);

i:=i+1;

a[i]:=StrToInt(ComboBox1.text);

ComboBox1.SetFocus;
4.Tuzilgan loyiha (proekt) ya’ni Project1 va Unit1 standart modul nomlarini mos nomlar bilan almashtirib saqlaymiz.

5.Yangi nom bilan saqlangan proekt, ya’ni ilova F9 tugmachasini bosish bilan ishga tushuriladi.

Ilova ishga tushirilganda uning quyidagi ko’rinishi ekranda namayon bo’ladi.

Tashkil qilingan modulning to’liq ko’rinishini keltiramiz.
Unit s1p;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, StdCtrls;
type

Tform1 = class(Tform)

Button1: Tbutton;

Button2: Tbutton;

Memo1: Tmemo;

Label1: Tlabel;

ComboBox1: TcomboBox;

procedure FormCreate(Sender: Tobject);

procedure Button1Click(Sender: Tobject);

procedure Button2Click(Sender: Tobject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

Form1: Tform1;

a:Array[1..10] of integer;

k,I,maxx,minn:Integer;

s1,s2:String;

implementation

{$R *.dfm}
procedure Tform1.Button1Click(Sender: Tobject);

begin

ComboBox1.Items.Add(ComboBox1.text);

i:=i+1;

a[i]:=StrToInt(ComboBox1.text);

ComboBox1.SetFocus;

end;
procedure Tform1.FormCreate(Sender: Tobject);

begin

i:=0;

ComboBox1.Clear;

end;
procedure Tform1.Button2Click(Sender: Tobject);

begin

minn:=a[1];

maxx:=a[1];

For k:=1 to 10 do

Begin

If minn>a[k] Then Minn:=a[k];

If maxx

End;

Str(maxx:5,S1);

Str(minn:5,S2);

Memo1.Clear;

Memo1.Lines.Add(‘Eng kattasi=’+s1);

Memo1.Lines.Add(‘Eng kichigi =’+s2);

end;
End.

Savollar :

1. 
   Delphi ComboBox komponentini vazifasi?
   
2. 
   Delphi dasturi haqida tushuncha bering?
   
3. 
   Delphi dasturini imkoniyatlari ?
   
4. 
   Delphi dasturi qanday dastur?
   

Uyga vazifa: O’tilgan mavzuni o’qish