Program to count the no. of times a character occurs in a string.

program to count the no. of times a character occurs in a string.
Say if u have a method :- Countclass(string s,char c) then using this u should be able to count a char ' T' in the string ="TESTING".
So it is appering 2 times.
How to count it.

int countChar(String s, char c) {
   int count = 0;
   for (int i=0; i<s.length(); i++) {
      if (s.charAt(i) == c)
         count++;
   return count;
}

Similar Messages

Count the number of times a character is in a string using pl/sql

I need to count the number of times ":" appers in the string ":XXX:CCC:BBB:".
I have sound some solution using SQL but I do not want the context switch.
Also I am on 10g so I can not use REGEXP_COUNT.
Any help would be great.

Hi,
length(REGEXP_REPLACE(':XXX:CCC:BBB:','[[:alnum:]]'))counts all kinds of punctuation, spaces, etc., not just colons. Change any (or all) of the colons to periods and it will still return 4. Use '[^:]' instead of '[[:alnum:]]' if you really want to count just colons.
Also, "SELECT ... FROM dual" is usually needed only in SQL*Plus or similar front end tools. In PL/SQL, you can call functions without a query, like this:
x := NVL (LENGTH (REGEXP_REPLACE (txt, '[^:]')), 0);

Need code to count the no.of time each character occurs in a sentence

hi all i need code to find the count of each character in a sentecne

1.) Don't ask questions that have been asked (and answered) a thousand times before:
1a.) Google
1b.) Search the forums
2.) Show us what you already tried. You're getting help here, not your complete homework
3.) How To Ask Questions The Smart Way

Find the Number of times a '¯'character appears in a string.

Hi,
In my staging table I am having data like below
ABL¯ABL¯0¯0¯ABL¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯
ABL¯ABQ¯480¯825¯DLS¯AMA¯ABQ¯ ¯ ¯ ¯ ¯ ¯ ¯
ABL¯ACD¯808¯1255¯DLS¯ELP¯TCS¯PHX¯ACD¯ ¯ ¯ ¯ ¯
ABL¯ADE¯1256¯471¯DLS¯AMA¯ABQ¯LSV¯ADE¯ ¯ ¯ ¯ ¯
ABL¯AFT¯1140¯1744¯DLS¯LAX¯FON¯AFT¯ ¯ ¯ ¯ ¯ ¯
ABL¯AHM¯1178¯1637¯DLS¯LAX¯AHM¯ ¯ ¯ ¯ ¯ ¯ ¯
ABL¯ALB¯1769¯1825¯DLS¯WIL¯ALB¯ ¯ ¯ ¯ ¯ ¯ ¯
ABL¯ALE¯1041¯1150¯DLS¯ALE¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯
Now I want to find the Number of times a '¯'character appears in a string.
I should get output 14
thanks & regards,
Vipin Jha
Thankx & regards, Vipin jha MCP

Hi Vipin,
You can try below sql code also
code:- len(data)-len(replace(data,'¯','')) -(len(data)-len(replace(data,' ','')))
select data,len(data)-len(replace(data,'¯','')) -(len(data)-len(replace(data,' ',''))) CountofCharacter from
select 'ABL¯ABL¯0¯0¯ABL¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ' data
UNION
SELECT 'ABL¯ABQ¯480¯825¯DLS¯AMA¯ABQ¯ ¯ ¯ ¯ ¯ ¯ ¯ '
UNION
SELECT 'ABL¯ACD¯808¯1255¯DLS¯ELP¯TCS¯PHX¯ACD¯ ¯ ¯ ¯ ¯ '
UNION
SELECT 'ABL¯ADE¯1256¯471¯DLS¯AMA¯ABQ¯LSV¯ADE¯ ¯ ¯ ¯ ¯ '
UNION
SELECT 'ABL¯AFT¯1140¯1744¯DLS¯LAX¯FON¯AFT¯ ¯ ¯ ¯ ¯ ¯ '
UNION
SELECT 'ABL¯AHM¯1178¯1637¯DLS¯LAX¯AHM¯ ¯ ¯ ¯ ¯ ¯ ¯ '
UNION
SELECT 'ABL¯ALB¯1769¯1825¯DLS¯WIL¯ALB¯ ¯ ¯ ¯ ¯ ¯ ¯ '
UNION
SELECT 'ABL¯ALE¯1041¯1150¯DLS¯ALE¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯ ¯'
) t
Thanks
Prasad

Calculate the number of times a character appears in a string

Please help.
Is there a way to count a number of occurences of a particular character in a string? e.g. If you have 'DATABASE' as a string, can you calculate the number of times 'A' occurs in it? The answer is supposed to be 3, but can you calculate it in Oracle?
Thanks in advance.

Re: Any built-ins for occurance

Return amount of times a character is in a string?

Hello, quick question. As the title says, how can i return the amount of times a character is in a string? character such as 'a', 'b', etc. Thank you all, appreciate it!

thank you for your help! so would this be correct? (s is the string)
          int amount = 0;
          for(int x = 0; x <= s.length(); x++)
               if (s.charAt(x) == value){
                    amount++;
          return amount;

Is there a way to count the number of times an array moves from positive to negative?

I have an array of values, and I need to find the number of times that the array changes signs (from positive to negative, or vice versa). In other words from a graphical standpoint, how many times a certain line crosses the x-axis. Counting the number of times the array equals zero does not help however, because the array does not always equal exactly zero when it crosses the axis (ie, the points could move from .1 to -.1).
Thanks for you help. Feel free to email me at [email protected] I only have lv 5.1.1 so if you attach any files, they cannot be version 6.0.

Attached is a VI showing the # of Pos and Neg numbers in an array, with 0 considered as non-Pos. It is easily modifiable to other parameters - including using the X-axis value as your compare point versus only Zero.
This is a modified VI from LV (Separate Array.vi)
Compare this with your other responses to find the best fit.
Doug
Attachments:
arraysizesposneg.vi ‏40 KB

Java Program+To count the number of lines in a method excluding comments???

Hi friends
can u plz help me out, the java program is counting the number of lines in a method excluding comments.
The first thing is how to identify a method, then there can be an inner method inside the parent method,
Please friends its urgent
Bye
Sandy

There's no such thing as an inner method in Java. You can either write the code yourself to parse Java source, or maybe something like ANTLR can do it.

I need to WAP to count the number of occurences of an alphabet in a string.

I need to WAP to count the number of occurences of an alphabet in a string.I tried a lot and have surfed a lot regarding this problem.
I m not the most proficient with java.but this is all i could come up with,and would appreciate some help here.I hope you guys would help me find a solution to this.
e.g String : abcabrty
Result should be
a:2
b:2
c:1
r:1
t:1
y:1
public class chkoccurences
     public static void main(String args[ ])
          String user_Data=args[0];
          int counter=0;
          try
               for(int i=0;i<user_Data.length( );i++)
                    for(int j=0;j<user_Data.length( );j++)
                         if(user_Data.charAt(i) == user_Data.charAt(j))
                         counter++;
                    System.out.println(user_Data.charAt(i)+" exists "+counter+" time(s) in the word.");
               System.out.println(" ");
          catch(ArrayIndexOutOfBoundsException e)
               System.out.println("Check the array size.");
}This is the output i get out of the program:
a exists 2 time(s) in the word.
b exists 4 time(s) in the word.
c exists 5 time(s) in the word.
a exists 7 time(s) in the word.
b exists 9 time(s) in the word.
r exists 10 time(s) in the word.
t exists 11 time(s) in the word.
y exists 12 time(s) in the word.What i think is i need an array to store the repeated characters because the repeated characters are getting counted again in the loop,if you know what i mean.
Please, i would appreciate some help here.

Criticism is welcomed
public class tests {
     final int min = 10;
     final int max = 35;
     final char[] chars = new char[] {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
               'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
               'v', 'w', 'x', 'y', 'z'};
     public static void main(String[] args){
          tests t = new tests();
          String[] strings = new String[] {"aabcze", "att3%a", ""};
          for(String s : strings){
               System.out.println(t.getAlphaCount(s));
     public String getAlphaCount(String s){
          int[] alphaCount = new int[26];
          int val;
          for(char c : s.toCharArray()){
               val = Character.getNumericValue(c);
               if( (val>=min) && (val<=max)){
                    alphaCount[val-min]++;
          StringBuilder result = new StringBuilder();
          for(int i=0; i<alphaCount.length; i++){
               if(alphaCount[i] > 0){
                    result.append(chars[i] + ":" + alphaCount[i] + ", ");
          if(result.length() != 0){
               result.delete(result.length()-2, result.length());
          return result.toString();
}

How do i count the number of times a cell has been referenced by other cells' formulae?

Hello,
I have a spreadsheet of recipes and ingredients that use checkboxes to let me know which recipes I can make based on the ingredients I have on-hand, using a formula like this one: =IF(AND('Spirits' :: A42,Mixers :: A18,Mixers :: A41,'Spirits' :: A25 ),Table 3 :: $A$2,Table 3 :: $A$3). If I've checked all of the boxes for ingredients that are required for any one of my recipes, the cell that the formula is in returns something like "YES"; otherwise, it returns a blank. It works well enough, but I'd like to include a cell next to each ingredient with a formula that will look through the hundreds of recipes, which all use a formula like the one above, and return a count of the number of times the ingredient's cell is referenced in those formulas. That way, I'll know which ingredients are the most commonly used in my eclectic collection of recipes. I thought something like =COUNTIF('Recipes' :: A2:A343, "=A2") would work, but it doesn't look at the cell references in the formulas, so no, it doesn't work. Any ideas? I'm using Numbers 2.3

Hello
There's no formula to inspect other formula in Numbers. So what you asked cannot be achived in such a way you described.
A simple alternative method would be to build recipe-ingredient matrix as follows.
E.g.
Table definitions:
Recipes
A1    Recipe \ Ingredient
A2    A
A3    B
A4    C
A5    D
A6    E
A7    F
A8    # recipes / ingredient
B1    X1
B2    TRUE
B3    FALSE
B4    TRUE
B5    FALSE
B6    TRUE
B7    FALSE
B8    =COUNTIF(B,TRUE)
C1    X2
C2    TRUE
C3    TRUE
C4    FALSE
C5    TRUE
C6    TRUE
C7    TRUE
C8    =COUNTIF(C,TRUE)
D1    X3
D2    FALSE
D3    TRUE
D4    FALSE
D5    TRUE
D6    FALSE
D7    TRUE
D8    =COUNTIF(D,TRUE)
E1    X4
E2    FALSE
E3    FALSE
E4    FALSE
E5    FALSE
E6    FALSE
E7    TRUE
E8    =COUNTIF(E,TRUE)
F1    Y1
F2    TRUE
F3    FALSE
F4    TRUE
F5    TRUE
F6    TRUE
F7    FALSE
F8    =COUNTIF(F,TRUE)
G1    Y2
G2    FALSE
G3    TRUE
G4    TRUE
G5    FALSE
G6    FALSE
G7    TRUE
G8    =COUNTIF(G,TRUE)
H1    Y3
H2    TRUE
H3    TRUE
H4    FALSE
H5    TRUE
H6    TRUE
H7    FALSE
H8    =COUNTIF(H,TRUE)
I1    Y4
I2    FALSE
I3    FALSE
I4    FALSE
I5    FALSE
I6    FALSE
I7    TRUE
I8    =COUNTIF(I,TRUE)
J1    in-stock?
J2    =SUMIF(B2:E2,TRUE,TRANSPOSE(X::$C$2:$C$5))+SUMIF(F2:I2,TRUE,TRANSPOSE(Y::$C$2:$C$5))=COUNTIF(B2:I2,TRUE)
J3    =SUMIF(B3:E3,TRUE,TRANSPOSE(X::$C$2:$C$5))+SUMIF(F3:I3,TRUE,TRANSPOSE(Y::$C$2:$C$5))=COUNTIF(B3:I3,TRUE)
J4    =SUMIF(B4:E4,TRUE,TRANSPOSE(X::$C$2:$C$5))+SUMIF(F4:I4,TRUE,TRANSPOSE(Y::$C$2:$C$5))=COUNTIF(B4:I4,TRUE)
J5    =SUMIF(B5:E5,TRUE,TRANSPOSE(X::$C$2:$C$5))+SUMIF(F5:I5,TRUE,TRANSPOSE(Y::$C$2:$C$5))=COUNTIF(B5:I5,TRUE)
J6    =SUMIF(B6:E6,TRUE,TRANSPOSE(X::$C$2:$C$5))+SUMIF(F6:I6,TRUE,TRANSPOSE(Y::$C$2:$C$5))=COUNTIF(B6:I6,TRUE)
J7    =SUMIF(B7:E7,TRUE,TRANSPOSE(X::$C$2:$C$5))+SUMIF(F7:I7,TRUE,TRANSPOSE(Y::$C$2:$C$5))=COUNTIF(B7:I7,TRUE)
J8
X
A1    Ingredient
A2    X1
A3    X2
A4    X3
A5    X4
B1    in-stock?
B2    TRUE
B3    TRUE
B4    TRUE
B5    FALSE
C1    code
C2    =IF(B2,1,0)
C3    =IF(B3,1,0)
C4    =IF(B4,1,0)
C5    =IF(B5,1,0)
Y
A1    Ingredient
A2    Y1
A3    Y2
A4    Y3
A5    Y4
B1    in-stock?
B2    TRUE
B3    FALSE
B4    TRUE
B5    FALSE
C1    code
C2    =IF(B2,1,0)
C3    =IF(B3,1,0)
C4    =IF(B4,1,0)
C5    =IF(B5,1,0)
In "Recipe" table, the first row is header row and the last row is footer row.
Hope this may help,
H

Need to count the number of times the Basic Finish data chages

HI Expertes,
I have a requirement I need to count number of times the Basic finish date chaged for PM work order. I went throug our forums I got some info like using a standard function module
CHANGEDOCUMENT_READ_HDRS_ONLY
CHANGEDOCUMENT_READ_HEADERS
CHANGEDOCUMENT_READ_POSITIONS
But all the above function module will not be suitable for my requirement since CHANGEDOCUMENT_READ_HDRS_ONLY it gives whole changes but my requirement is just need number of changes occurred in Basic Finish date but CHANGEDOCUMENT_READ_POSITIONS can give the filed number which has been changed but still I need change id.
So kindly suggest me wether there is any other Standard FM to get number of changes occurred in Basic Finish date?
Thanks,
Rajesh

Hi Debbie,
     To count the number of groups please try the folling steps:
1) Create a formula @reset and place this formula in the page header
    whileprintingrecords;
    numbervar i:=0;
2) Create another formula @evalgroup place this in the group header where you want to count the values.
    whileprintingrecords;
    numbervar i:= i+1;
3) Create another formula @display and place this in report footer.
    whileprintingrecords;
    numbervar i;
In order to display the count of details which are printing in the detail section place the eval formula in the detail section and the @display formula in the group footer.
Hope this helps!!!
Regards,
Vinay

How do I count the number of times a word appears in a column?

What I have is a spreadsheet logging work history. Let's say the work location is "office", "home", or "travel" and I want to have a separate cell in another table for totals, count up the number of time each appears in the data for the year. So it would look like this:
Date
Location
sept 1
office
sept 2
home
sept 3
home
sept 4
travel
sept 5
office
sept 6
office
sept 7
office
sept 8
travel
sept 9
home
sept 10
office
Totals
Days
10
Office
5
Home
3
Travel
2
I just can't figure out how to develop the formula to put in the Totals column to make it work this way. If you can help me achieve this I'd really appreciate it!

Hi SpartanAntarctican,
Table 1 to record your locations
Date
Location
sept 1
office
sept 2
home
sept 3
home
sept 4
travel
sept 5
office
sept 6
office
sept 7
office
sept 8
travel
sept 9
home
sept 10
office
Table 2 to sum your locations
Totals
Days
10
Office
5
Home
3
Travel
2
In Table 2 the formula in B2
=ROWS(Table 1::A)−1
Minus 1 because there is a Header Row in Table 1.
In Table 2 the formula in B3 (and Fill Down)
=COUNTIF(Table 1::B,A3)
You can check this by adding 5 + 3 + 2 to arrive at 10
Or maybe delete Row 2 put the Days calculation into a Footer Row in Table 2
=SUM(B) .
Regards,
Ian.

BW Reporting - How to Count the number of times a query is executed

Hi All,
How do we get a report that enable us to get a count of number of times a report is executed? Example below:
Info-provider Report Name Frequency
PA_C01 Headcount 24 times
Any idea?
Many thanks all.
Mark Ng.

Hi,
1. Use Tcode = ST03N (Work Load Monitor)
2. Choose Expert mode.
3. Click on your system host name
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5. Select which ever you want to see details for queries.
Regards,
Srini Nookala

How can I count the number of times a timed loop finished late?

I am getting occasional timing errors in a timed loop under windows XP and would like to count the number of errors, but I can't find a simple software counter vi

The timed loop has a terminal (boolean) to indicate if the previous iteration finished late. Just increment an integer shift register if this happens.
The attached shows a very simple demo (LabVIEW 7.1).
LabVIEW Champion . Do more with less code and in less time .
Attachments:
LateCounter.vi ‏76 KB

How do you count the amount of times a button is clicked?

Heres my code:
public void buttonClicked(JButton buttonzilla){
if(buttonzilla == startButton){
while(i < 7){
story.append("\n" + "\n" + abc);
i++;
However, when i click the button once, it displays all elements in the array, however, im trying to get it so that each time i click the button another element is displayed, one at a time. How would i go about doing this?

Can you explain the code because it dosent make sense
to me, im a beginner.In the code you posted, there is no declaration for the variable i, so I've assumed it is declared as a class variable, and has scope within the class.
You say you want to add only the data from the element of abc[], relative to the number of times the button has been clicked i.e. 1st click adds abc[0], 2nd click adds abc[1] etc.
if(i < abc.length) - to ensure no ArrayIndexOutOfBoundsException (really should also check i is not negative)
story.append("\n" + "\n" + abc[i++]);
instead of
story.append("\n" + "\n" + abc);
i++;

Program to count the no. of times a character occurs in a string.

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