homework help/ String Searcher

safecracker · #1 (**permalink**) 12-03-2008, 05:05 AM

Here is my assignment:
This program asks for a sentence and a search word. It prints the number of times the search word appears exactly in the sentence, and the number of times the search word appears as part of another word.

An example would be "Madam, I'm Adam" search word: adam.

So far I've written the program so that it asks the user for the sentence and search word, and then converts everything to lower case. I'm having trouble with the counts though. I've been looking through the Lang book and have found a letter counter and trying to see if I can manipulate it to look like my search word instead, but so far have failed.

Does anyone know how to count the number of times the word appears exactly and as part of another word? I'm hoping to get this finished for tomorrow morning.

emceenugget · #2 (**permalink**) 12-03-2008, 05:14 AM

You can easily iterate through the sentence to check for a substring. Java provides a lot of tools in the String class that will help you out in achieving this.

Fubarable · #3 (**permalink**) 12-03-2008, 05:21 AM

emceenugget is right on the money. I'll try to give you a head start by posting a link to the String API. Read through this and you'll find several methods worth trying out:
String (Java Platform SE 6)

miss.meli · #4 (**permalink**) 12-04-2008, 01:35 AM

I think you might also want to take a look at StringTokenizer if you haven't already.

Eranga · #5 (**permalink**) 12-04-2008, 05:58 AM

I don't think StringTokernizer is a good choice for this. Regular expressions are the best, in near future StringTokernizers can be deprecated. Actually we discuss about this several times in our community.

miss.meli · #6 (**permalink**) 12-04-2008, 06:27 AM

Originally Posted by Eranga

in near future StringTokernizers can be deprecated

I'm new to java myself with only about a year and a half of experience

, so I'm not to familiar with deprecated. What's that mean in programming?

Eranga · #7 (**permalink**) 12-04-2008, 06:32 AM

In simple word, some method are not in implementation. Can cause several issues, like memory crash and so on. What Sun do is, they introduce new implements for that method and the existing one named as deprecated, means Suns' strongly to advice not to use and use the new one.

miss.meli · #8 (**permalink**) 12-04-2008, 06:38 AM

Oh okay, that makes sense.

Eranga · #9 (**permalink**) 12-04-2008, 06:41 AM

Originally Posted by miss.meli

Oh okay, that makes sense.

Didn't you comes with such situations?

Try show() on JFrame for setVisible() and see. But you should work on IDE, and different IDEs give different results/comments.