How to access a textfile entering its name in console? JAVA -


what should 1 change in code instead of entering string in console, 1 enters text name (exmple.txt) text (where frequences counted)?

import java.io.*; class frequencycount {     public static void main(string args[]) throws ioexception     {         bufferedreader br = new bufferedreader(new inputstreamreader(system.in));         system.out.println ("enter text: ");         string s = br.readline();         system.out.println ("enter suffix: ");         string sub = br.readline();         int ind,count = 0;         for(int = 0; + sub.length() <= s.length(); i++)             {             ind = s.indexof(sub, i);             if (ind >= 0)             {                 count++;                 = ind;                 ind = -1;             }         }         system.out.println("occurence of '"+sub+"' in string "+count);      } }

first of refactor code in order reuse calculateocurrences method. read text file line line , sum occurrences line.

import java.io.bufferedreader; import java.io.ioexception; import java.io.inputstreamreader; import java.nio.charset.charset; import java.nio.file.filesystems; import java.nio.file.files; import java.nio.file.path;  public class main {      public static void main(string args[]) throws ioexception     {         bufferedreader br = new bufferedreader(new inputstreamreader(system.in));         system.out.println ("enter file path: ");         final string filepath = br.readline();          system.out.println ("enter suffix: ");         final string suffix = br.readline();          int count = 0;          path path = filesystems.getdefault().getpath(filepath);          charset charset = charset.forname("us-ascii");         try (bufferedreader reader = files.newbufferedreader(path, charset)) {             string line = null;             while ((line = reader.readline()) != null) {                  count = count + calculateocurrences(line,suffix);             }         } catch (ioexception x) {             system.err.format("ioexception: %s%n", x);         }            system.out.println("occurence of '"+suffix+"' in string "+count);      }      public static int calculateocurrences(final string text, final string suffix) {         int ocurrences = 0;          for(int = 0; + suffix.length() <= text.length(); i++)         {             int indexofocurrence = text.indexof(suffix, i);             if (indexofocurrence >= 0)             {                 ocurrences++;                 = indexofocurrence;             }         }          return ocurrences;     } }

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