Solved

Remove any spacial character and numbers from string in JSP

Posted on 2009-04-12
13
376 Views
Last Modified: 2012-05-06
How I can remove any spacial character and numbers from string in JSP ?

for example
String vr_Statement = "Hello Mr Saloman 123 {0} Ok I will go to the {1} school - at 7 oclock"

I want to remove the spacial charcter and numbers from last string variables can anybody help me ?
0
Comment
Question by:bworld
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 5
  • 2
13 Comments
 
LVL 19

Expert Comment

by:Kuldeepchaturvedi
ID: 24124932
String vr_Statement = "Hello Mr Saloman 123 {0} Ok I will go to the {1} school - at 7 oclock";
char[] newstr = vr_Statement.toCharArray();
StringBuffer nb = newStringBuffer();
for(char a:newstr)
{
if(Character.isLetter(c);
nb.append(c);
}

String final = nb.toString();

0
 

Author Comment

by:bworld
ID: 24124938
Hello Kuldeepchaturvedi

Can you explain to me

for(char a:newstr)
{
if(Character.isLetter(c);
nb.append(c);
}
0
 
LVL 19

Expert Comment

by:Kuldeepchaturvedi
ID: 24124958
its just another way of writing the for loop.

same thing could have been written as

for(int i=0; i<newstr.length;i++)
{
if(Character.isLetter(newstr[i]);  //Here I am using a static method of Class Character to check if its a letter
nb.append(newstr[i]);  //here I am simply adding it to the stringbuffer to make a string after the loop finishes.
}
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:bworld
ID: 24124992
The code attach give me error please check it
<%
String vr_Statement = "Hello Mr Saloman 123 {0} Ok I will go to the {1} school - at 7 oclock";
out.print (vr_Statement);
 
char[] newstr = vr_Statement.toCharArray();
StringBuffer nb = newStringBuffer();
 
for(int i=0; i<newstr.length;i++)
{
	if (Character.isLetter(newstr[i])
	{
		nb.append(newstr[i]);
	}
}
 
String final = nb.toString();
 
out.print ("<p>");
out.print (final);
out.print ("<p>");
%>

Open in new window

0
 

Author Comment

by:bworld
ID: 24125006
Please check the script give me error
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
 
<body>
<%
String vr_Statement = "Hello Mr Saloman 123 {0} Ok I will go to the {1} school - at 7 oclock";
out.print (vr_Statement);
 
char[] newstr = vr_Statement.toCharArray();
StringBuffer nb = newStringBuffer();
 
for(int i=0; i<newstr.length;i++)
{
	if (Character.isLetter(newstr[i]))
	{
		nb.append(newstr[i]);
	}
}
 
String final = nb.toString();
 
out.print ("<p>");
out.print (final);
out.print ("</p>");
%>
</body>
</html>

Open in new window

0
 
LVL 19

Expert Comment

by:Kuldeepchaturvedi
ID: 24125455
can you post the error that you got? It always helps a lot to see the actual error to debug rather than just looking at code and knowing that there may be an error in code..
0
 

Author Comment

by:bworld
ID: 24125776
This is error
HTTP Status 500 - 
 
--------------------------------------------------------------------------------
 
type Exception report
 
message 
 
description The server encountered an internal error () that prevented it from fulfilling this request.
 
exception 
 
org.apache.jasper.JasperException: Unable to compile class for JSP
 
An error occurred at line: 10 in the jsp file: /test5.jsp
Generated servlet error:
Syntax error on token "final", delete this token
 
An error occurred at line: 10 in the jsp file: /test5.jsp
Generated servlet error:
Syntax error on token "final", invalid ArgumentList
 
 
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 
 
root cause 
 
org.apache.jasper.JasperException: Unable to compile class for JSP
 
An error occurred at line: 10 in the jsp file: /test5.jsp
Generated servlet error:
Syntax error on token "final", delete this token
 
An error occurred at line: 10 in the jsp file: /test5.jsp
Generated servlet error:
Syntax error on token "final", invalid ArgumentList
 
 
	org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
	org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
	org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:414)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:297)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 
 
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.
 
 
--------------------------------------------------------------------------------
 
Apache Tomcat/5.5.17

Open in new window

0
 
LVL 27

Assisted Solution

by:rrz
rrz earned 50 total points
ID: 24125818
I am just trying to help until kuldeep returns here. Tell us what output you are looking for.
>StringBuffer nb = newStringBuffer();
should be  
StringBuffer nb = new StringBuffer();
>String final = nb.toString();
>out.print (final);
final is a reserved word in Java.
change to something else
String final2 = nb.toString();
...
out.print (final2);
0
 
LVL 27

Expert Comment

by:rrz
ID: 24125820
You have 26 open questions. You should close some of those if you want more people to help you.
0
 
LVL 19

Expert Comment

by:Kuldeepchaturvedi
ID: 24128053
thanks for covering me rrz...
bworld try below code.. its basically the two fixes that rrz gave you in earlier post.
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
 
<body>
<%
String vr_Statement = "Hello Mr Saloman 123 {0} Ok I will go to the {1} school - at 7 oclock";
out.print (vr_Statement);
 
char[] newstr = vr_Statement.toCharArray();
StringBuffer nb = new StringBuffer();
 
for(int i=0; i<newstr.length;i++)
{
        if (Character.isLetter(newstr[i]))
        {
                nb.append(newstr[i]);
        }
}
 
String final2 = nb.toString();
 
out.print ("<p>");
out.print (final2);
out.print ("</p>");
%>
</body>
</html>

Open in new window

0
 

Author Comment

by:bworld
ID: 24128117
Ok the code working fine

But I need remove all spacial character only but I need to remain the space between words.
0
 

Author Comment

by:bworld
ID: 24128119
I need the output as follow

Hello Mr Saloman Ok I will go to the school at oclock
0
 
LVL 19

Accepted Solution

by:
Kuldeepchaturvedi earned 450 total points
ID: 24128121
If you want to keep spaces in the string use following code.
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
 
<body>
<%
String vr_Statement = "Hello Mr Saloman 123 {0} Ok I will go to the {1} school - at 7 oclock";
out.print (vr_Statement);
 
char[] newstr = vr_Statement.toCharArray();
StringBuffer nb = new StringBuffer();
 
for(int i=0; i<newstr.length;i++)
{
        if (Character.isLetter(newstr[i])||Character.isWhitespace(newstr[i]))
        {
                nb.append(newstr[i]);
        }
}
 
String final2 = nb.toString();
 
out.print ("<p>");
out.print (final2);
out.print ("</p>");
%>
</body>
</html>

Open in new window

0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

After seeing many questions for JRNL_WRAP_ERROR for replication failure, I thought it would be useful to write this article.
This article shows how to use a free utility called 'Parkdale' to easily test the performance and benchmark any Hard Drive(s) installed in your computer. We also look at RAM Disks and their speed comparisons.
In this video, viewers are given an introduction to using the Windows 10 Snipping Tool, how to quickly locate it when it's needed and also how make it always available with a single click of a mouse button, by pinning it to the Desktop Task Bar. Int…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …

690 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question