Is that just Java or does my code need touching up? import java.io. I saw a Python script of this that does the same thing but in half the lines of code. I'm also wondering if I should break up my code in main into more methods. I got it to work but I feel like it should be easier to sort. The biggest struggle I had was sorting the HashMap by values. You choose a file to be counted with a JFileChooser, and the results get outputted into a file. I am just wondering if I can improve or compact this code better. Public static int countWordsUsingSplit( String input) else if (Character.This is a simple word frequency counter in Java. The split method returns an array, the length of the array is your number of words in a given String. This solution uses the regular expression "\\s+" to split the string on whitespace. In this solution, we will use the split() method of class to count the number of words in a given sentence. Solution 1 - Counting words using String.split() method In the first method we will use the split() method of String class, in the second we will use StringTokenizer, and in the third, we'll solve this problem without using any API or library method. Without wasting any more of your time, here are my three solutions to this common coding problem. How to Count Number of Words in Given String in Java? It not only provides is a collection of common programming questions and solutions from tech giants like Amazon, Google, Facebook, and Microsoft but also useful to refresh your Data Structure and algorithm skills. for our purpose, we assume that space character includes tab, space, or newline and anything which is considered as a letter by Character.isLetter() is considered as a word.ītw, if you are looking for more String based coding problems, you can either check here, or you can check out Data Structures and Algorithms: Deep Dive Using Java course on Udemy. The third one is the most interesting and very difficult to write a complete solution handling all special characters e.g. first by using String's split() method and regular expression, second by using StringTokenizer, and third without using any library method like above. In this article, I'll share all three ways to solve this problem i.e. Simply paste the desired text into the text. The interviewer also put additional constraints like split() is not allowed, you can only use basic methods like charAt(), length(), and substring() along with the loop, operators, and other basic programming tools. This is a simple online tool to easily determine how many words (and characters) a given chunk of text contains. It's actually one of the common Java coding questions and I have seen it a couple of times with Java developer interviews of 2 to 4 years of experience, not just with Google but companies like Barclays, Nomura, Citibank, JP Morgan, and Amazon. This was the easy way to solve this problem as shown here, but if you have been asked to write a program to count a number of words in a given String in Java without using any of String utility methods like String.split() or StringTokenizer then it's a little bit challenging for a beginner programmer. By using a regular expression to find spaces and split on them will give you an array of all words in a given String. A word is nothing but a non-space character in String, which is separated by one or multiple spaces. How do you count the number of words in a given String in Java? You can count words in Java String by using the split() method of String. Today, I am going to share with you Java interview questions from Google, which were asked to one of my readers during the telephonic round.
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