This is a discussion on "calculator making in Java script" within the JavaScript Forum section. This forum, and the thread "calculator making in Java script are both part of the Program Your Website category.
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calculator making in Java script
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#1
Oct 1st, 2005, 14:53
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calculator making in Java script
hi
m new to Java Scritp I have to make a calculator in JS.then how to make buttons like 1-9 thankx        
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#2
Oct 1st, 2005, 19:17
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<html>
<body> c:\web\kalkulat.htm Saturdae, 01 Oct 05 at 1415 <! ************************ html ********************> <div style="position:relative;left:0;top:-10px;"> <style> .senter1{text-align:center;vertical-align:middle; font-family:sans-serif,helvetica,arial,lucida console; border:solid 1px black;margin:0;padding:1px; font-size:14px;line-height:15px;font-weight:700}</style> <! *************** input form> <form name="inputf"> <table cols=3 border=1 bgcolor="#ffccbb" margin=0> <!******1> <tr> <td><input type=text name="digit1" value="1" size=2 class="senter1" onClick="adddigit('1')"></td> <td><input type=text name="digit2" value="2" size=2 class="senter1" onClick="adddigit('2')"></td> <td><input type=text name="digit3" value="3" size=2 class="senter1" onClick="adddigit('3')"></td> </tr> <!******2> <tr> <td><input type=text name="digit4" value="4" size=2 class="senter1" onClick="adddigit('4')"></td> <td><input type=text name="digit5" value="5" size=2 class="senter1" onClick="adddigit('5')"></td> <td><input type=text name="digit6" value="6" size=2 class="senter1" onClick="adddigit('6')"></td> </tr> <!******3> <tr> <td><input type=text name="digit7" value="7" size=2 class="senter1" onClick="adddigit('7')"></td> <td><input type=text name="digit8" value="8" size=2 class="senter1" onClick="adddigit('8')"></td> <td><input type=text name="digit9" value="9" size=2 class="senter1" onClick="adddigit('9')"></td> </tr> <!****** 1=submit> <tr> <td><input type=text name="digit0" value="0" size=2 class="senter1" onClick="adddigit('0')"></td> <td colspan=2> <input type=text value="calculate" size=8 style="cursor  ointer;cursor:hand;border:3px solid red"style="background-color:#8dcff4" align="center" onClick="dumath(document.inputf)"></td> </tr> </table> </form> </body> </html>
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#3
Oct 2nd, 2005, 16:42
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Thankx for the reply
where is its functionality??  n where is the body of "adddigit" fun??or atleast tell me wht this function is doing??n i want thta whenever i click on any button it shows it in the textbox
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#4
Oct 3rd, 2005, 11:55
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<script language="JavaScript">
<!-- ***************** javaskript ************** //********** global variabels var savestuff=""; //** //******************* function adddigit(kaller){ savestuff=savestuff+kaller; document.inputf.anser.value=" "; return} //** //******************* function dumath(kaller){ if(savestuff == ""){ document.inputf.anser.value=" "; return true} anser =eval(savestuff); werkstring=savestuff+"="+anser; document.inputf.anser.value=werkstring; savestuff=""; return} // --> </script>
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#5
Oct 9th, 2005, 14:33
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urgent help req...
Plz Check this code n tell me is it rite approach...
<html> <head> <title> Java Script Practice </title> <script language="JavaScript"> var savestuff=""; var stack=""; function adddigit(kaller){ if(kaller=='+') { op=kaller; document.My.first.value=""; stack=eval(stack+'+'+savestuff); document.My.first.value=stack; savestuff=0; } else if(kaller=='*') { op=kaller; if(stack=="") { stack=1; document.My.first.value=""; stack=eval(stack+'*'+savestuff); document.My.first.value=stack; savestuff=0; } else { document.My.first.value=""; stack=eval(stack+'*'+savestuff); document.My.first.value=stack; savestuff=0; } } else if(kaller=="=") { dumath(stack,savestuff,op); } else { savestuff=savestuff+kaller; document.My.first.value=savestuff; } return } function dumath(f,sec,opt) { if(opt=="+") { anser=eval(f+'+'+sec); document.My.first.value=anser; } else if(opt=="*") { anser=eval(f+'*'+sec); document.My.first.value=anser; } return; } </script> </head> <body> <form name="My"> <input type="text" name="first"> <table border="2" align=Center bgcolor="Blue"> <tr> <td> <input type="button" size="40" value="1" name="b1" onclick="adddigit('1')"> <input type="button" size="40" value="2" name="b2" onclick="adddigit('2')"> <input type="button" size="40" value="3" name="b3" onclick="adddigit('3')"> </td> <tr> <td> <input type="button" size="40" value="4" name="b4" onclick="adddigit('4')"> <input type="button" size="40" value="5" onclick="adddigit('5')"> <input type="button" size="40" value="6" onclick="adddigit('6')"> </td> </tr> <tr> <td> <input type="button" size="40" value="7" onclick="adddigit('7')"> <input type="button" size="40" value="8" onclick="adddigit('8')"> <input type="button" size="40" value="9" onclick="adddigit('9')"> </td> </tr> <tr> <td> <input type="button" size="40" value="+" onclick="adddigit(value)"> <input type="button" size="40" value="=" onclick="adddigit(value)"> <input type="button" size="40" value="*" onclick="adddigit(value)"> </tr> </tr> </form> </body> </html> m having some problems in it...when i entered sec. no it displays a leading zero wid it which is the value of var.."stack"..bt if I don't initialize it then eval function perform string concatination.. Its not a complete calculater only performing add n mul operations till noww reply sooon
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