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VBScript prime number generator

Posted by Unknown Minggu, 30 Juni 2013 0 komentar

VBScript prime number generator

This is a really cool HTML application which finds all the prime numbers in a given range. This program is pretty fast for low ranges and may raise the core usage to 100 or 90 percent for very large ranges. So I prevented large ranges from being entered as it caused some errors and caused the computer to crash.
The VBScript used in the program is really simple. The program tries to get a integer number by dividing it with all possible numbers and if does not get an integer the number is confirmed as a prime number. This process is repeated for all the numbers in the given range.
To make the program paste the following code in notepad and save with a .hta extension.

<html><head><title>PRIME CALCULATOR</title><HTA:APPLICATION   APPLICATIONNAME="PRIME CALCULATOR"   ID="PRIMECALCULATOR"   VERSION="1.0"   MAXIMIZEBUTTON="no"   SCROLL="no"/></head> <script language="VBScript"> Sub Window_OnLoad    Dim width,height    width=500    height=475    self.ResizeTo width,height    RID.value = 0 End Sub  Function PVal If (BTN.value = "Stop") Then SID.value = 1 Else If (boxa.value = "" Or boxb.value = "") Then MsgBox("Enter a range!") Else If ((boxa.value = boxb.value) Or (Int(boxa.value) >  Int(boxb.value))) Then MsgBox("Are you mad? Enter a valid range!") Else If (Int(RID.value) = 1) Then RID.value = 1 Else boxa.readonly = True boxb.readonly = True PSet() End If End If End If End If End Function  Function PSet If (boxa.value <= 0) Then boxa.value = 1 Else End If code.value = "" count.value = 0 anum.value = boxa.value bnum.value = boxb.value BTN.value = "Stop" SID.value = 0 RID.value = 1 ID.Value = 1 PStart() End Function  Function PStart anum.value = Int(anum.value)+1 If (Int(anum.value) = Int(boxb.value)) Then PStop() Else If (SID.value = 1) Then PSStop() Else calculate(Int(anum.value)) End If End If End Function  Function Calculate(num) chk = 1 rmn = 1 Do Until chk = num-1 chk = chk+1 rmn = num Mod chk If (rmn = 0) Then Exit Do Loop If (rmn = 0) Then code.value = code.value Else code.value = code.value & ", " & num code.doScroll count.value = count.value+1 End If Do While ((Int(ID.value) = 1) And (Code.value <> "")) code.value = Replace(code.value, Left(code.value, 2), "", "1", "1") ID.value = 0 Loop Junk = SetTimeOut("PStart()", 1) End Function  Function PStop BTN.value = "Calculate" Junk = MsgBox(count.value & " prime numbers found between the range "  & boxa.value & "-" & boxb.value & "!", 64, "INFO") ID.value = 1 RID.value = 0 boxa.readonly = False boxb.readonly = False End Function  Function PSStop BTN.value = "Calculate" ID.value = 1 RID.value = 0 boxa.readonly = False boxb.readonly = False End Function  </script> <body style="font-family:BookMan Old Style;"><input type="hidden" id="RID"><input type="hidden" id="ID"><input type="hidden" id="SID"><input type="hidden" id="count"><input type="hidden" id="bnum"><input type="hidden" id="anum"><table align="center" border="1"><caption><hr><b>PRIME  CALCULATOR</b><hr></caption><tr><td>Enter the range of prime numbers you want and click Calulate  to get all the prime numbers in that range!<hr></td></tr><tr><td align="center"><input type="text" id="boxa" size="10"  onkeypress="If (window.event.keycode < 48 Or window.event.keycode  >57) Then window.event.returnvalue = False"> To: <input  type="text" id="boxb" size="10" onkeypress="If (window.event.keycode  < 48 Or window.event.keycode >57) Then window.event.returnvalue =  False"></td></tr><tr><td align="center"><input type="button" id="BTN"  value="Calculate" onclick="PVal"></td></tr><tr><td align="center"><textarea wrap="virtual" id="Code" cols="52"  rows="12" readonly>

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Judul: VBScript prime number generator
Ditulis oleh Unknown
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