Extract x amount of words from a string

hi all just wondered if some can help me with this
String mySting = "This is a test String"
getInput(); // this method returns a string and works
getNoOfWordsInputted(); // returns int of words in the stringthis is where I need the help
I now need to extract getNoOfWords inputted from myString
ie such that if I input "this is " true will be returned
I can implment the following
if (getInput.equals(myString)){
// do Something
}

Still not quite sure what you're after, but if you want to see if the target string starts with a candidate substring, just use the startsWith method.
if (example.startsWith(sub)) ...
or, you can still use the indexOf method, just check for a return value of 0, meaning the index of was at the beginning of the string.
if (example.indexOf(sub) == 0) ...

Similar Messages

Extract words from a string

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NLSRTL Version 11.1.0.7.0 - ProductionI want to extract xyz_xyz,abc_abc words from the string ' select * from TEMP_TABLE where trunc(xyz_xyz) = ''xyz'' and trunc(abc_abc) = ''abc'') '
i have tried with this query...
select regexp_substr('select * from TEMP_TABLE where trunc(xyz_xyz) = ''xyz'' and trunc(abc_abc) = ''abc'')', 'trunc[^'''']+''') from dual
can some one help me on this?
Thanks,
Mike

Hi, Mike,
Mike wrote:
I apologize for this..
create table TEMP_TABLE ( col1 varchar2(10),col2 varchar2(10));
insert into TEMP_TABLE values('   xyz   ','abc      ');
insert into TEMP_TABLE values('   xyzxyz ','abcabc    ');
insert into TEMP_TABLE values('   xyz123 ','abc546 ');
insert into TEMP_TABLE values('xyz','abc');
commit
select * from TEMP_TABLE where trim(col1) ='xyz' and trim(col2) ='abc'
desired output
col1,col2
So the correct output is one row, containing these 9 characters
col1,col2which do not appear in the table. is that right?
How is that output related to the data that is in the table? Do you want that output to appear if there are any rows where TRIM (col1) = 'xyz' and TRIM (col2) = 'abc' (for example, either of these two rows from you sample data:
insert into TEMP_TABLE values('   xyz   ','abc      ');
insert into TEMP_TABLE values('xyz','abc');), and would you want the result set to contain no rows if the table contained no row like that?
If so,
SELECT DISTINCT
     'col1,col2'     AS desired_output
FROM     temp_table
WHERE     TRIM (col1)     = 'xyz'
AND     TRIM (col2)     = 'abc'
;I hope this answers your question.
I have a feeling that it doesn't, or perhaps you have more than one question, since this your earlier messages seemed to have something to do with locating text that was surrounded by single-quotes, and the sample data you posted doesn't contain any single-quotes.

Extracting various bits of information from a string

Hi,
I am interested in extracting various pieces of information from strings (which were originally email bodies). For example email addresses (that are in the body of the email not the "from" field), phone numbers (which could have spaces between, international formats/conventions, ie not all numbers), profession (to match against a list I have), etc etc.
I am expecting that I would need to use Regex to find emails and phone numbers, and maybe tokenizing the string to match against my list of professions.
So I am more interested in some high level suggestions of how I should go about this.
In most cases, the source of the emails will be from 3 known sources. So in these case I will have a pretty good idea of the format/template that the response's will follow ( ie ".... name is XXXX XXXX ....." ) . This would then make extracting the useful information much easier. However, I need to allow for emails from unknown sources where nothing would be known about the format of the email.
Any help/suggestions/info would be appreciated.
The Whale

Thanks.
Re: function object; You tip about the function object sounds like a very good idea. I have been thinking about the best way to do this and this sounds like a good way to do it.
Re: Regex - I have not used Regex much but I am assuming it wont be hard to find or create Regex expressions to find phone numbers and email addresses. Although as you say, names could be hard. Although in this case I will just have to rely on locations in known templates.
Thanks again,
:)

How to read each and every word from a string.

Hi all,
I have a string which is having many label numbers. if the string is lv_str, its value is like, 11111111111111##22222222222222##3333333333333.
I need to move the values alone into internal table. each value should be updated as a single row into one internal table. How to read each and every word of the string and move to an internal table.
the internal table should be like this.
11111111111111
22222222222222
3333333333333
Can any one give me a suggestion in this regard.
POINTS PROMISED.
Regards,
Buvana

Hi,
If you know the format and length of the data
Use split at '#' so that you will get the individual values.
Thean append it to internal table.
Reward iof helpful.

Extract either string1 or string2 from another string

I have a string of data named "dump" with 500 or more bytes of data that will contain within it either (along with other data) the word "circle" or the word "square". (but not both)
I need to pull which ever one of these two words that is in the string "dump" and to create a string called "type" that contains only that word.
Is there an easy way to do this with a line of code or two?
thanks

if (FindPattern (dump, 0, -1, "circle", 0, 0) >= 0)
strcpy (typem "circle");
else if (FindPattern (dump, 0, -1, "square", 0, 0) >= 0)
strcpy (type, "square");
Proud to use LW/CVI from 3.1 on.
My contributions to the Developer Zone Community
If I have helped you, why not giving me a kudos?

How can i extract using while the time from the string ?

First time how can i extract the time as string ?
And second how can i extract the time as DateTime.Now ?
public static void ExtractDateTime()
htmltoextract = new Uri("http://test.com");
client = new WebClient();
f = client.DownloadString(htmltoextract);
client.Dispose();
int index = 0;
while (index != -1)
int t = f.IndexOf(firstTag);
int g = f.IndexOf(lastTag);
a = f.Substring(t + firstTag.Length, g - t - 8);
The string look like this: thisisateststring201309202145andthenextimeinthestringis201309202130andthelastofthisexampletimeinthisstringis201309202115
What i need to do is first time to extract the time as string to a List<string> like this:
index 0 201309202145
index 1 201309202130
index 2 201309202115
The second time to extract the times as this time format: YYYYMMDDhhmm and also to add the times to a List.
First time and second time i mean first example and second example. To use my code but first time to extract it as strings second example as the format of YYYYMMDDhhmm
And i need to use the while and indexof and substring in this cases.

Is the region always going to be "eu" or are you going to have more than one region. Since you are reading a string DateTime from different timezone than the computer you are reading the data you have to convert to a different timezone.
It looks like you have at least 'is' and 'eu' for regions. I don't know what offsets you need so try something like this.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Globalization;
using System.IO;
namespace ConsoleApplication1
class Program
static void Main(string[] args)
string input = File.ReadAllText(@"c:\temp\test.txt");
string pattern1 = @"imageUrls = \[[^\]]*\]";
Regex ex1 = new Regex(pattern1, RegexOptions.Singleline);
string pattern2 = @"region=(?'region'[^&]*)&time=(?'time'\d{12})";
Match match1 = ex1.Match(input);
Regex ex2 = new Regex(pattern2, RegexOptions.Singleline);
MatchCollection matches2 = ex2.Matches(match1.Value);
IFormatProvider provider = CultureInfo.InvariantCulture;
List<DateTime> dateTime = new List<DateTime>();
foreach (Match match2 in matches2)
string region = match2.Groups["region"].Value;
DateTime dt = DateTime.ParseExact(match2.Groups["time"].Value, "yyyyMMddHHmm", provider);
switch (region)
case "eu" :
dt.AddHours(1);
break;
case "is":
dt.AddHours(-1);
break;
dateTime.Add(dt);

I am reading from an instrument a 1D string array of numbers in ascii. I want to be extract the actual data values from the string. How do I do that?

labview 6i. Using sr785 instrument.

Two ways. Use Fract/Exp to Number function on the Strin>Strin Number Conversion palette. It accepts both individual or strin array inputs. Wire your string array in an get an array of doubles out. You can also use Scan From String on the String palette inside of a for loop. The for loop will autoindex the string array in and autoindex an array of doubles out.
Attachments:
string_to_double.jpg ‏10 KB

How to extract from a string ?

Hello , I have this string and I need to extract 4 parts (in bold) from the string , my string is :
'(invoice) dear client : tom cruise you Buy *408* from MENA.CA @ *6.93* 01/10/09 watheeqa'
What is the best technique to do that?
Thanks

Hi,
oais wrote:
Hello , I have this string and I need to extract 4 parts (in bold) from the string , my string is :
'(invoice) dear client : tom cruise you Buy *408* from MENA.CA @ *6.93* 01/10/09 watheeqa'
What is the best technique to do that?
ThanksThat depends on how you know the 4 parts are what you showed, and not
'(invoice) dear client: tom cruise you Buy 408 from MENA.CA @ 6.93 01/10/09 watheeqa'
or
'(invoice) dear client: tom cruise you Buy 408 from MENA.CA @ 6.93 01/10/09 watheeqa?'
or
'(invoice) dear client: tom cruise you Buy 408 from MENA.CA @ 6.93 01/10/09 watheeqa'
Will there always be exactly four parts you need to pick?

Delete the first word in a string?

Hi, i have a code in which i can extract the first three words in a string. after it's found the three first words, i would like it to remove the first one, what could i add?
this is what the code looks like:
import java.util.regex.*;
class Test187D {
     public static void main(String[] args) {
          String word1;
          String word2;
          String word3;
          String partDesc = "Hi my name is SandraPandra";
          Pattern pattern = Pattern.compile("^(\\w+)\\s+(\\w+)\\s+(\\w+)");
          Matcher matcher = pattern.matcher(partDesc);
          //Find the first word of the part desc
          if (matcher.find()) {
               word1 = matcher.group(1);
               word2 = matcher.group(2);
               word3 = matcher.group(3);
               System.out.println (word1 + " " + word2 + " " + word3);
} Thank you in advance

Take the length of the first word, plus one for the length of the space, that's how many characters to remove. Take the substring of the original string from the end of the removed part to the end of the whole string. Look up the String methods length(), and substring().

Extract words from JSP into text file

Hi,
I have a big problem:
I want to extract selected words from a jsp file.
Following are found in one of my jsp file:
E.g.
1) <td width="217">ORGANISATION UNIT NAME *
I want to retrieve "ORGANISATION UNIT NAME"
2)errPrompt(frm.txtDesc, "Maximum length is just 100 character only");
I want to retrieve "Maximum length is just 100 character only"
I try String tokenising, then check that is the token ends with ">", then the next token is the one
I want, then loop until "<" is found. BUT this would not work as there is no spacing between some of
the tags and the words.(e.g. abc)--> This cauese the whole token to be abc, so the "abc" will
not be extracted as it does not have a "ends with >" in front of it.
Even with using ">" as a checking does not work for pop up messages, as it does not have tags(refer
to e.g 2).
Please reply a.s.a.p...
Really urgent!!
Thank You
Michelle

for extracting the HTML tags, u can use DOM/DHTML
I dont remember the syntxes, how to use, but i know that it is possible, just go thru' the DOM/DHTML
Regards,
Ritesh

How to extract an integer or a float value from a String of characters

Hi i have a problem getting to a float value within a string of characters..
for instance the string is
"numberItem xxxxxxxxx 700.0" (each x is a space..the forum wouldnt let me put normal spaces for some reason)
how do i store 700.0 in a float variable
remember the string is obtained from an inputfile
so far i got the program to store the inputfile data line by line in a String array..i tried tokenizing the string to get to the the float value but since i have mulitple spaces within my string, the token method only gets "numberItem" from the above String
This is all i have so far:
String c;
String Array[] =new String[g]; (i used a while loop to obtain g(the nubmer of lines in the file))
while((c=(cr.readLine()))!=null)
Array[coun]=c;
it would be reallllllllllllllllllllllllllllllllllllllly easy if there was a predefined method to extract numeric values from a string in java..
Edited by: badmash on Feb 18, 2009 5:50 PM
Edited by: badmash on Feb 18, 2009 5:50 PM
Edited by: badmash on Feb 18, 2009 5:55 PM

badmash wrote:
Hi i have a problem getting to a float value within a string of characters..
for instance the string is
"numberItem xxxxxxxxx 700.0" (each x is a space..the forum wouldnt let me put normal spaces for some reason)
with the space included
how do i store 700.0 in a float variable
remember the string is obtained from an inputfile
so far i got the program to store the inputfile data line by line in a String array..i tried tokenizing the string to get to the the float value but since i have mulitple spaces within my string, the token method only gets "numberItem" from the above StringHuh?
Not true.
Anyway why not use string split, split on spaces and grab the last element (which by the format you posted would be your 700.0)
Then there is the Float.parseFloat method.
It is easy.
And another thing why not use a List of Strings if you want to store each line? (And why did you post that code which doesn't really have anything to do with your problem?) Also in future please use the code formatting tags when posting code. Select the code you are posting in the message box and click the CODE button.

How to Extract particular field from a string ( Mapping)

how to exteract the particular field from the given string:
ProcessEmp this element has a below string subfields.
<ProcessEmp><?xml version="1.0" encoding="utf-8" standalone="no"?>
<Employee PersonnelNumber="11111" FirstName="String" MiddleName="String" LastName="String" Department="String" Group="" SapUserID="10flname" EmailAddress="[email protected]" DefaultPassword="*" Status="Success" /></ProcessEmp>
how to extract only PersonalNumber, department, EmailAddress from above ProcessEmp into 3 diff fields.
Thanks
dhanush.

Hi,
You are receiving XML message within a field. To access a particular field from that XML message, you could create a User Defined Function, as suggested by many already.
You could write UDF using some of the String operation functions. This could include following:
1. If you need to access field Employee PersonnelNumber, you could get last index of that within string using function lastIndexOf(String str). Pass string "Employee PersonnelNumber="" for this function.
2. This function would return an index of rightmost occurance of this string.
3. after this you could get the index of next occurance of ", as the value of field is within quotes. You could use function indexOf(int ch, int fromIndex) for getting the same. You would pass Character as " and index as the one received by previous function.
4. Now you have index for starting and ending point of value string for desired field.
5. After this you could use substring(int beginIndex, int endIndex) function by passing first and second index values to retrieve the needed string, which contains value of field.
Hope this would be helful.
Thanks,
Bhavish
Reward points if comments found helpful:-)

Extract int from a string

Hi,
I am curious if there is an easy way to extract an int value from a String.
For example, "Rb23" to get 23. The length of the part in front of the integer is variable.
Thanks

this seems to work:
public int extract(String s) {
     String result = "";
     char c[] = s.toCharArray();
     int j = c.length-1;
     if (!Character.isDigit(c[j])) {
          return 0;
     do {
          result+=c[j--];
     } while (j > 0 && Character.isDigit(c[j]));
     return Integer.parseInt(new StringBuffer(result).reverse().toString());
}it will return 0 if no numbers are found at the end of the string

Invoking methods extracted from a string?!?

Hi everybody. I hope the subject is not confusing. What I'm really looking for is some Perl-like behaviour in Java. In Perl its possible to execute subroutines (basicly methods) extracted from a string ("&sub()"). Is there anything similar in Java?
What I would like to do is to process a string and if it has a method (object.getTime()), the method will be called and the return value stored in its place.
Please let me know if more explanation is needed.
Thanks in advance for all the help!
Leo.

I use a language called MUMPS where you can do that as well - execute strings as commands etc. I don't know much about Reflection but it looks like you can get method (Objects) from strings and execute them as well ...

How to return a word from an input string in random

iam trying to return a single word from an input string.the word has to be selected in random.can u help?
this is wat i tried so far
private String findKeyWord(String remark)
String[] input= stringobj.trim().toLowerCase().split(" "); // am splitting the string here and it gets stored in string array//
return ????? //i should return any one word in the string in random//
}

array[random.nextInt(array.length)]

Extract x amount of words from a string

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