Find A Word In A File Java

01 Apr, 2021

Public void search Scanner scannedFile new Scanner filetxt. String word sc1next.

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Reading the contents of the file.

Find a word in a file java. Set the word wanted to search in the file. It is used to read text from the input stream in Java. Read the file line by line.

Here is a simple example that demonstrates how you can use Java regular expression to find a string or a phrase in a text file. In this video we will see how to replace a bunch of words with appropriate values in a file using Streams. OK a much faster way keeping it as Java is to do the following.

Scan the ByteBuffer looking for matches to the search byte-array. Following example demonstrares how to search and get a list of all files under a specified directory by using dirlist method of File class. Else not found.

String id st0. Public class SearchWord public static void mainStringargs throws Exception Scanner inputnew ScannerSystemin. String name st1.

Public class Main public static void mainString argv throws Exception File dir new FiledirectoryName. You can use Scanner scannernew ScannerFileNameWithPath. If children null Systemoutprintlndoes not exist or is not a directory.

Else if getFileNameToSearchequalstempgetNametoLowerCase resultaddtempgetAbsoluteFiletoString. Boolean flag false. Else for int i 0.

While scannedFilehasNext String search scannedFilenext. Read the file line by line. Consider the following example that will recursively search for a file of a given name.

For this we need to know how to read a text file using java. Here I have given a simple way just read a text file and find out the search keyword after finding out the search key word it will be shown on which line the searched keyword was found. Below is the sample program to find the a given word Java in Dtest folder of files.

If filecanRead for File temp. It is present in the javaioBufferedReader package in Java. Else SystemoutprintlnfilegetAbsoluteFile Permission Denied.

Static String sear CREATE. Read the content of the file using the following while loop while sbrreadLine null Step 5. String marks st2.

Java Program to find a specific word in a text file and print its count. Open a memory-mapped byte-buffer from a File-Channel on the file. FilelistFiles if tempisDirectory searchtemp.

Step 1. Sometimes we may need to search any specific word from a text file. Public class readfile static String list.

Int count 0. Whiles freaderreadLine null String st ssplit. This can be done by opening a file in read mode using file pointer.

. In the below program I am getting output as No Data Found and I am sure that the file has the word which I am searching. SystemoutprintlnEnter the word to be found.

For example String inputJava. This is also useful in mail-merge kind of use case. Java Program to find the number of the words in the given text file In this program we need to find the most repeated word present in given text file.

If you need to search for a phrase or a string in a text file Java regular expression is the easiest way to accomplish this task. String children dirlist. BufferedReader freader new BufferedReadernew FileReaderf.

Public class FindingWordFromFile public static void mainString args throws FileNotFoundException Reading the word to be found from the user Scanner sc1 new ScannerSystemin. Public class ReadFile public static void mainString args throws IOException ReadFile rf new ReadFile. Then check your word is there or not.

Read a single line from the file. Java Program to find the most repeated word in a text file In this program we need to find the most repeated word present in given text file. File file FileUtilslistFilesnew Filethedesiredrootpath new NameFileFilterfilenameext FileFilterUtilstrueFileFilter iteratornext.

To read file and you can try following to add words to List. SystemoutprintlnContents of the line. Convert the search string are to a byte-array in the same encoding as the file.

Create an object to FileReader and BufferedReader. Iterate the word array. To Search a word in in list of files available in Folder you need to find the list of files first and then scan each and every for required word.

SystemoutprintEnter name to find details. This can be done by opening a file in read mode using file pointer. BufferedReader bfr new BufferedReaderfr.

It buffers the character read into an array. Count the newlines as you go. String line null.

Private void searchWordString token throws IOException InputStreamReader reader new InputStreamReader getClassgetResourceAsStreamsowpodstxt. It will give you just a basic idea.

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