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Finding character position

Posted on 2011-03-15
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Last Modified: 2012-05-11
Hello,

i trying to make the following ,  the java code is asking for the name and a number,
what the number should show the character in that position for example i give the name : persia and the number 3
it should give

PERSIA
R

i did the uppercase part but im stuck at the second part Please help


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>11</title>
</head>
<body>
	<img src=image/MyNameIs.jpg />
	<br />
		
		
		<script type="text/javascript">
		name = prompt("your last name");
		name = name.toUpperCase();
		document.write( "Welkom " + name );
		
		number = parseInt (prompt("give a number"));
		
        </script>
		
		
		
	</body>
	

</html>
</body>
</html>

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Question by:kensy11
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14 Comments
 
LVL 40

Expert Comment

by:Gurvinder Pal Singh
ID: 35136234
you need to use the charAt() method

http://www.w3schools.com/jsref/jsref_charat.asp

alert(name.charAt(2));
0
 
LVL 40

Accepted Solution

by:
Gurvinder Pal Singh earned 1000 total points
ID: 35136238
alert(name.charAt(number));
0
 

Author Comment

by:kensy11
ID: 35136254
i already did it but not working

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>11</title>
</head>
<body>
	<img src=image/MyNameIs.jpg />
	<br />
		
		<script type="text/javascript">
		name = prompt("your last name");
		name = name.toUpperCase();
		document.write( "Welkom " + name );
		number = parseInt (prompt("give a number"));
		document.write(" character is: " + number + "<br />");
        </script>
	</body>
</html>
</body>
</html>

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0
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LVL 19

Expert Comment

by:Rikin Shah
ID: 35136257
alert(name.charAt(number).toUpperCase());
0
 
LVL 47

Expert Comment

by:for_yan
ID: 35136277
This looks like works:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>11</title>
</head>
<body>
	<img src=image/MyNameIs.jpg />
	<br />


		<script type="text/javascript">
		name = prompt("your last name");
		name = name.toUpperCase();
		document.write( "Welkom " + name );



		number = parseInt (prompt("give a number"));
		document.write("<br>");
		document.write(name.charAt(number-1));

        </script>



	</body>


</html>
</body>
</html>

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0
 
LVL 40

Expert Comment

by:Gurvinder Pal Singh
ID: 35136284
replace line 16 with

document.write(" character is: " + name.charAt(number) + "<br />");
0
 
LVL 40

Expert Comment

by:Gurvinder Pal Singh
ID: 35136289
sorry it should be


document.write(" character is: " + name.charAt(number-1) + "<br />");
0
 

Author Comment

by:kensy11
ID: 35136292
aah thanks, i got it now
one other question how can i count the whole text ten
0
 
LVL 40

Expert Comment

by:Gurvinder Pal Singh
ID: 35136301
if you want to count the length of the text, then use name.length

http://www.w3schools.com/jsref/jsref_length_string.asp
0
 
LVL 47

Expert Comment

by:for_yan
ID: 35136321
This prints the length of the string

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>11</title>
</head>
<body>
	<img src=image/MyNameIs.jpg />
	<br />


		<script type="text/javascript">
		name = prompt("your last name");
		name = name.toUpperCase();
		document.write( "Welkom " + name );



		number = parseInt (prompt("give a number"));
		document.write("<br>");
		document.write(name.charAt(number-1));
	document.write("<br>");

	document.write(name.length);

        </script>



	</body>


</html>
</body>
</html>

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0
 

Author Comment

by:kensy11
ID: 35136355
thanks again sorry one other question
 
for example i give the name persia and the number is 2

how can i write the name form the 2 position , in this case i shuld look like  RSIA

thanks again
0
 
LVL 47

Expert Comment

by:for_yan
ID: 35136368
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>11</title>
</head>
<body>
	<img src=image/MyNameIs.jpg />
	<br />


		<script type="text/javascript">
		name = prompt("your last name");
		name = name.toUpperCase();
		document.write( "Welkom " + name );



		number = parseInt (prompt("give a number"));
		document.write("<br>");
		document.write(name.substring(number-1));
	document.write("<br>");

	document.write(name.length);

        </script>



	</body>


</html>
</body>
</html>

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0
 
LVL 47

Assisted Solution

by:for_yan
for_yan earned 1000 total points
ID: 35136379
counting form zero:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>11</title>
</head>
<body>
	<img src=image/MyNameIs.jpg />
	<br />


		<script type="text/javascript">
		name = prompt("your last name");
		name = name.toUpperCase();
		document.write( "Welkom " + name );



		number = parseInt (prompt("give a number"));
		document.write("<br>");
		document.write(name.substring(number));
	document.write("<br>");

	document.write(name.length);

        </script>



	</body>


</html>
</body>
</html>

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0
 

Author Comment

by:kensy11
ID: 35136383
Thank you all
0

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