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- //Write a Java Script to perform basic arithmetic operations (+, -, /, *)
- <html>
- <head>
- <title>js5</title>
- </head>
- <script>
- var a,b;
- function f1()
- {
- var n1;
- n1=parseInt(document.getElementById("c1").value);
- if(isNaN(n1))
- {
- document.getElementById("c1").focus();
- }
- else
- {
- a=n1;
- }
- }
- function f2()
- {
- var n1;
- n1=parseInt(document.getElementById("c2").value);
- if (isNaN(n1))
- {
- document.getElementById("c2").focus();
- }
- else
- {
- b=n1;
- }
- }
- function add()
- {
- sign="+";
- document.getElementById("c3").value=a+b;
- }
- function sub()
- {
- sign="-";
- document.getElementById("c3").value=a-b;
- }
- function mul()
- {
- sign="x";
- document.getElementById("c3").value=a*b;
- }
- function div()
- {
- sign="/";
- if (b!=0)
- {
- document.getElementById("c3").value=a/b;
- }
- else
- {
- document.getElementById("c3").value="(0 devide)";
- }
- }
- </script>
- <style>
- body
- {
- background-image:url("file:///D:/backgrounds/51.jpg");
- background-color:skyblue;
- background-attechment:fixed;
- backdrop-filter:blur(5px);
- height:100vh;
- background-size:100% 100%;
- margin:0;
- padding:0;
- background-repeat:no-repeat;
- }
- .s2
- {
- background:pink;
- font-size:25px;
- width:120%;
- height:50px;
- }
- .s1
- {
- border-radius:0%;
- border-color:pink;
- background:black;
- color:white;
- width:100%;
- height:70px;
- font-size:30px;
- }
- </style>
- <body text="White">
- <center>
- <h1 >Simple expressions</h1>
- <stamp class="s1" style="background:black;color:lightpink">*Press tab after giving data*<stamp>
- </center>
- <table border="1" align="center" cellspacing="20" cellpadding="70" width="70%">
- <form>
- <tr>
- <td align="left" colspan="2"> <input type="textbox"class="s1" id="c1" onchange="f1()" placeholder="No1"></td>
- <td align="left" colspan="2"> <input type="textbox"class="s1" id="c2" onchange="f2()" placeholder="No2"></td>
- <td align="left" colspan="2"> <input type="textbox"class="s1" id="c3" placeholder="Ans"></td>
- </tr>
- <tr>
- <td> <input type="button" class="s2" onclick="add()" value="+"></td>
- <td> <input type="button" class="s2" onclick="sub()" value="-"></td>
- <td> <input type="button" class="s2" onclick="mul()" value="x"></td>
- <td> <input type="button" class="s2" onclick="div()" value="/"></td>
- </tr>
- </form>
- </table>
- </body>
- </html>
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