String count with substring

[sang]

Hello
i have a doubt in string count with the sub string.
the main string is "java,mysql,jsp ,java,html";
the sub string is like this "java,mysql "

The output is like this
java 2
mysql 1

that is count the no of occureience of the sub string .

how can i do this please help to do this .

Thanks
Sang

[Ganon11]

Could you please explain your problem a bit more fully and post any code you've written or ideas you have?

[sang]

Here is my code

import java.io.*; 
 import java.util.StringTokenizer; 
 public class strcount
    {  	
          public static void main(String arg[]) {  	
	 String Resume = "java,html,jsp,c,java,dhtml,unix,html";  		          String Keyword = "java,html";  		 
          StringTokenizer st = new      StringTokenizer(Keyword, ",");  		 
          int count = st.countTokens();  		 
          int pos = -1;  
	 while ( (pos = Resume.indexOf( Keyword, pos + 1 ) ) > -1 )   			 count++ ;
	System.out.println( "The Keyword" + Keyword + " occurs " + count +               " times" ) ; 
 	 }   
}

The output is The Keywordjava,htm l occurs 3 times.

but i want to print java 2 times
html 1 time
Help me please
Thank you
Sang

[r035198x]

Hello
i have a doubt in string count with the sub string.
the main string is "java,mysql,jsp ,java,html";
the sub string is like this "java,mysql "

The output is like this
java 2
mysql 1

that is count the no of occureience of the sub string .

how can i do this please help to do this .

Thanks
Sang

You better have a look at regular expressions too.

[sang]

You better have a look at regular expressions too.

please give me the code to solve my problem

[sicarie]

please give me the code to solve my problem

The experts on this site are more than happy to help you with your problems but they cannot do your assignment/program for you. Attempt the assignment/program yourself first and post questions regarding any difficulties you have or about a particular function of the code that you don't know how to achieve.

Please read the Posting Guidelines and particularly the Coursework Posting Guidlines.

Then when you are ready post a new question in this thread.

MODERATOR

That is in our Posting Guidelines. Not only that, but we can't help you without more information (which a more specific question would have given us). It depends what you are looking for, and what your regex is currently. Try looking at this tutorial, and see where it gets you. When you have another, more specific question, post it here, and we'll be able to help you better.

[sang]

The experts on this site are more than happy to help you with your problems but they cannot do your assignment/program for you. Attempt the assignment/program yourself first and post questions regarding any difficulties you have or about a particular function of the code that you don't know how to achieve.

Please read the Posting Guidelines and particularly the Coursework Posting Guidlines.

Then when you are ready post a new question in this thread.

MODERATOR

That is in our Posting Guidelines. Not only that, but we can't help you without more information (which a more specific question would have given us). It depends what you are looking for, and what your regex is currently. Try looking at this tutorial, and see where it gets you. When you have another, more specific question, post it here, and we'll be able to help you better.

Here is my example code i already posted.so please correct my code to solve my problem.

Re: String count with substring
Here is my codeCode:
import java.io.*;
import java.util.Strin gTokenizer;
public class strcount
{
public static void main(String arg[]) {
String Resume = "java,html,jsp, c,java,dhtml,un ix,html"; String Keyword = "java,html" ;
StringTokenizer st = new StringTokenizer (Keyword, ",");
int count = st.countTokens( );
int pos = -1;
while ( (pos = Resume.indexOf( Keyword, pos + 1 ) ) > -1 ) count++ ;
System.out.prin tln( "The Keyword" + Keyword + " occurs " + count + " times" ) ;
}
}



The output is The Keywordjava,htm l occurs 3 times.

but i want to print java 2 times
html 1 time
Help me please
Thank you
Sang

[r035198x]

Here is my example code i already posted.so please correct my code to solve my problem.

You are better off using regular expressions for this. If you do have to use that tokenizer of yours, then you should use something like

 
String resume = "java,html,jsp,c,java,dhtml,unix,html";
StringTokenizer st = new StringTokenizer(resume , ",");
int javaCount = 0;
int htmlCount = 0;
while(st.hasMoreTokens()) {
 String s = st.nextToken();
	if(s.equals("java")) {
		javaCount = javaCount  + 1;
	}
	else if(s.equals("html")) {
		htmlCount =  htmlCount + 1;
	}
}

[sang]

You are better off using regular expressions for this. If you do have to use that tokenizer of yours, then you should use something like

 
String resume = "java,html,jsp,c,java,dhtml,unix,html";
StringTokenizer st = new StringTokenizer(resume , ",");
int javaCount = 0;
int htmlCount = 0;
while(st.hasMoreTokens()) {
 String s = st.nextToken();
	if(s.equals("java")) {
		javaCount = javaCount  + 1;
	}
	else if(s.equals("html")) {
		htmlCount =  htmlCount + 1;
	}
}

Sorry to distrub you.
I am not finished my work till. From the above coding we don't use the sub string.
My actual requriement is count the no of substrings occurs in the main string.

my actual string is "java,html,unix ,java"
my substring is "java,html"

output
java occures in 2 times
html occures in 1 time

the output we count the no of occurence of java and html.

the sub string is not only java and html,anything in the actual string will be given.

So help to do this.Its very urgent please do the needful

Thanks in Advance
Sang

[r035198x]

Sorry to distrub you.
I am not finished my work till. From the above coding we don't use the sub string.
My actual requriement is count the no of substrings occurs in the main string.

my actual string is "java,html,unix ,java"
my substring is "java,html"

output
java occures in 2 times
html occures in 1 time

the output we count the no of occurence of java and html.

the sub string is not only java and html,anything in the actual string will be given.

So help to do this.Its very urgent please do the needful

Thanks in Advance
Sang

How about this?

 
int count = 0;
  int wordLength = word.length();
  for(int i = 0; i < sentence.length(); i = i + wordLength) {
   if(word.equals(sentence.substring(i, i + wordLength))) {
	count++;
   }
  }

Let me know where you don't understand.

[Ganon11]

How about this?

 
int count = 0;
  int wordLength = word.length();
  for(int i = 0; i < sentence.length(); i = i + wordLength) {
   if(word.equals(sentence.substring(i, i + wordLength))) {
	count++;
   }
  }

Let me know where you don't understand.

I don't think this will work correctly. You are checking every wordLength characters to see if that substring is the word, but the words can be of varying lengths, and you may be checking part of one word and part of another. Why not try:

int count = 0;
int wordLength = word.length();
for (int i = 0; i < sentence.length() - wordLength; i++) {
   if (word.equals(sentence.substring(i, i + wordLength)
      count++;
}

This will check every possible location of word inside the string.

[r035198x]

I don't think this will work correctly. You are checking every wordLength characters to see if that substring is the word, but the words can be of varying lengths, and you may be checking part of one word and part of another. Why not try:

int count = 0;
int wordLength = word.length();
for (int i = 0; i < sentence.length() - wordLength; i++) {
if (word.equals(sentence.substring(i, i + wordLength)
count++;
}

This will check every possible location of word inside the string.

Guess I overdid there that time.
Thanks again Ganon.

[Ganon11]

That's why we're a team :)

[r035198x]

That's why we're a team :)

If you only you guys stay around here more often. Our times seem to be off too.
You always seem to appear around 4pm (for me here).

[Ganon11]

Right now according to my time, it's 11:22 AM (EST) - what time is it there?

I'm usually on around 3:00 PM (EST) and at least once during the day from Monday-Friday.