Java Programming: javascript

Showing posts with label javascript. Show all posts

Sunday, 16 September 2012

Practical 36) Write a JSP Page to use JSP scripting.

Filename-FindColor.html

<html>

<body>

color name

<br>

</form>

</body>

</html>

Filename-Scripting.jsp

<html>

<h2> Scripting Example of jsp </h2>

<br>

<%! int access=0; %>

Current date and time=

<%= new java.util.Date()%>

<br>

Example of Scriplet

<br>

int myno=(int)(Math.random()*100);

Random Number=

<%= myno %>

<br> visited page time=

<%= ++access %>

<%!

private int genNumber(int no)

{

java.util.Random r=new java.util.Random();

return r.nextInt(no);

}

<br>Number genrated is under 10=

<%= genNumber(10) %>

<br>

RequestParameter1

</body>

</html>

Output

color name

Scripting Example of jsp

Current date and time= Tue Apr 10 23:48:45 IST 2012
Example of Scriplet
Random Number= 18
visited page time= 2
Number genrated is under 10= 8
RequestParameter1

Thursday, 6 September 2012

Practical-9) Write a JavaScript to show a pop up window with a message Hello and background color lime and with solid black border.

Filename-js9.html

<html>

<head>

<title> Java Practical 9 </title>

function popup()

{

//open("js8.html");

var pu =window.createPopup();

//var ref = pu.documetn.body; //create reference ...

pu.document.body.style.backgroundColor="#AAFFFF";

pu.document.body.style.border="solid black"

pu.show(50,50,200,160,document.body);

pu.document.body.innerHTML="Welcome to Apple.com";

}

</script>

</head>

<body>

<form>

</form>

</body>

</html>

Output

Note: pop-up windows generate on IE.

Practical-8) Write a JavaScript to find a string from the given text. If the match is found then replace it with another string.

Filename-js8.html

<html>

<head>

function check()

{ frm.str1.value=frm.str1.value.replace(frm.str2.value,frm.str3.value);

}

</script>

</head>

<body>

Enter String

Enter find String

Enter replace string

</form>

</body>

</html>

Output

Enter String Enter find String Enter replace string

Practical-7) Write a JavaScript to convert Celsius to Fahrenheit.

Filename-js7.html

<html>

<head>

function cel()

{

frm.farn.value=((9/5)*(parseInt(frm.cell.value)))+32;

}

</script>

</head>

<body>

Enter Celsius

</form>

</body>

</html>

Output

Enter Celsius

Practical-6) Write a JavaScript to remove the highest element from the array and arrange the array in ascending order.

Filename-js6.html

<html>
<head>
<script language="javascript">

var no=new Array(0,1,2,3,33,6,58,89,991);
document.write("Array no are="+no+"<br>");
function compare(a,b)
{
return a-b;
}
document.write("sorting order=");
document.write(no.sort(compare));
//document.write("<br>"+"print"+no.slice(0,no.length));
document.write("<br>"+"remove max no print=");
for(i=0;i<no.length-1;i++)
{
document.write(no[i]+",");
}

</script>
</head>
</html>

Output
Array no are=0,1,2,3,33,6,58,89,991 sorting order=0,1,2,3,6,33,58,89,991 remove max no print=0,1,2,3,6,33,58,89

Practical-5) Write a JavaScript to generate two random numbers and find out maximum and minimum out of it.

Filename-s5.html

<html>
<head>
<script language="javascript">
var no1=Math.random()*100;
var no2=Math.random()*100;
document.write("no1="+no1+"<br>");
document.write("no2="+no2+"<br>");

if(no1 > no2)
{
ducument.write("max no="+no1);
}
else
{
document.write("max no"+no2);
}
</script>
</head>
<body>
</body>
</html>

Output
no1=87.61335089802742
no2=77.67163217067719

Practical-4) Write a JavaScript that finds out multiples of 10 in 0 to 10000. On the click of button start the timer and stop the counter after 10 seconds. Display on the screen how many multiples of 10 are found out within stipulated time.

Filename-js4.html

<html>
<head>
<title> Practical 4 </title>
<script language="javascript">
function start_counter()
{
var i=0,count=0;
for(i=1;i<=10000;i++)
{
if(i%10==0)

{
document.write("<br>" + i + "<br>");
count++;
}
}
document.write("<br> Multiplication Of 10 are :- " + count);
}
function call_counter()
{
setTimeout("start_counter()",10000);
}
</script>
</head>
<body>
<form>

<input type="button" name="b1" value="Call" onClick="call_counter(this.form)">
</form>
</body>
</html>

Output
10 20 30 40 .
.
.
9970 9980 9990 10000 Multiplication of 10 are: - 1000

Practical-3) Create a Form in HTML with two fields, minimum and maximum, write JavaScript to validate that only numeric value is entered in both, and the value entered in minimum is less than the value entered in maximum.

Filename-js3.html

<html>
<head>
<script language="javascript">
function checkval(myno)
{
if(isNaN(myno.value))
{
alert("plz enter number");

myno.focus();
}
}
function val(no1,no2)
{
if(no1.value> no2.value)
{
alert("plz enter no2 is gretter then no1");
no2.focus();
}
}
function add()
{ frm.result.value=parseInt(frm.minno.value)+parseInt(frm.maxno.value);
}
</script>
</head>
<body>
<form name="frm">
Enter min no=<input type="text" name="minno" onBlur="checkval(this.form.minno)"/>
<br>
Enter max no= <input type="text" name="maxno" onBlur="checkval(this.form.maxno),add(),val(this.form.minno,this.form.maxno)" />

<br>
addtion of two no
<input type="result" name="result" readonly="readonly" onBlur=""/>
</form>
</body>
</html>

Output
Enter min no=
Enter max no=
addtion of two no

practical-2) Write a JavaScript that demonstrates the use of +=,-=,*=,/= operators.

Filename-js2.html

<html>
<body>
<script language="javascript">
a=parseInt(prompt("Enter no1"));

b=parseInt(prompt("Enter no2"));
document.write("a="+a+"<br>");
document.write("b="+b);
c=a;
a+=b;
document.write("<br>"+"c="+a);
</script>
</body>
</html>

Output
a=12 b=10 c=22

practical-1) Write a JavaScript that shows how a variable’s type can be changed on-the-fly.

Filename-js1.html

<html>
<body>
<script language="javascript">
a=10;
document.write("a="+ a +"type="+typeof a+"<br>");
a="hello";
document.write("a="+ a +"type="+typeof a+"<br>");
</script>
</body>
</html>
Output
a=10type=number a=hellotype=string

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Sunday, 16 September 2012

Scripting Example of jsp

Thursday, 6 September 2012