PROGRAM DELPHI OPERASI STRING

WAHYUDIN NURZAMAN (12125633) (MI)
BSI KALIMALANG
KELAS 12.4C.06


unit OperatorString;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm4 = class(TForm)
    GroupBox1: TGroupBox;
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    GroupBox2: TGroupBox;
    Label3: TLabel;
    Edit3: TEdit;
    GroupBox3: TGroupBox;
    Label4: TLabel;
    Label5: TLabel;
    Edit4: TEdit;
    Edit5: TEdit;
    Label6: TLabel;
    Edit6: TEdit;
    GroupBox4: TGroupBox;
    Label7: TLabel;
    Edit7: TEdit;
    Label8: TLabel;
    Edit8: TEdit;
    Label9: TLabel;
    Edit9: TEdit;
    GroupBox5: TGroupBox;
    Label10: TLabel;
    Edit10: TEdit;
    Label11: TLabel;
    Edit11: TEdit;
    Label12: TLabel;
    Edit12: TEdit;
    Button3: TButton;
    GroupBox6: TGroupBox;
    Label13: TLabel;
    Edit13: TEdit;
    Label14: TLabel;
    Edit14: TEdit;
    Button4: TButton;
    Button1: TButton;
    Button5: TButton;
    Button6: TButton;
    Button2: TButton;
    Button7: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button6Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Button7Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form4: TForm4;

implementation

{$R *.dfm}

procedure TForm4.Button1Click(Sender: TObject);
Var
  karakter:string;
  pos,jumlah:integer;
begin
  karakter:=edit3.Text;
  pos:=StrToInt(edit4.Text );
  jumlah:= StrToInt(edit5.Text);
  delete(karakter,pos,jumlah);
  edit6.Text :=karakter;
end;



procedure TForm4.Button4Click(Sender: TObject);
Var
  nama:string;
begin
  nama:=edit1.Text;
  edit2.Text :=IntToStr(length(nama));
end;
procedure TForm4.Button3Click(Sender: TObject);
Var
  karakter:string;
begin
  karakter:=edit10.Text ;
  edit11.Text :=copy(karakter,1,4);
  edit12.Text :=copy(karakter,8,4);
end;



procedure TForm4.Button6Click(Sender: TObject);
Var
  angka:integer;
begin
  angka:=strtoint(edit13.Text);
  edit14.Text :=chr(angka);
end;



procedure TForm4.Button5Click(Sender: TObject);
var
  a:string;
  b:string;
  indekpencarian : Integer;
begin
  a:= Edit7.Text;
  b:= Edit8.Text;
  indekpencarian := Pos(b,a);
  Edit9.Text := IntToStr(indekpencarian);
end;


procedure TForm4.Button7Click(Sender: TObject);
begin
  edit1.Text :='';
  edit2.Text :='';
  edit3.Text :='';
  edit4.Text :='';
  edit5.Text :='';
  edit6.Text :='';
  edit7.Text :='';
  edit8.Text :='';
  edit9.Text :='';
  edit10.Text :='';
  edit11.Text :='';
  edit12.Text :='';
  edit13.Text :='';
  edit14.Text :='';
end;


procedure TForm4.Button2Click(Sender: TObject);
begin
  if(Application .MessageBox('Do you want to quit?','confirmation',
  MB_YESNO Or MB_ICONQUESTION or MB_DEFBUTTON2)=IDYES) then close;
end;
end.