Devise a sequence to display a count of lines containing str

Devise a sequence to display a count of lines containing strings containing <BR /> in all .html files in the current directory. <BR /> is case-insensitive. It can be upper or lower case.

Solution

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;

/**
*
* This Java program count the <br/> tags in all the files present in the current directory
*
* @author Surya Sumanth
*/
public class CountingTags {

    public static void main(String args[]) {
      
  
    try {
      
    //Give your directory path in the below constructor File(\"\")
    File folder = new File(\"C:/YourDirectory\");
  
    //Lists all the files in the given Directory
    File[] listOfFiles = folder.listFiles();
  
    //Initializes <br/> count to zero
    int countofBR = 0;

       for (int i = 0; i < listOfFiles.length; i++) {
     
       //Check Whether the Current file is a File or Directory
       if (listOfFiles[i].isFile()) {
      
      
        FileInputStream fis = null;
        BufferedReader reader = null;
          
            //Count the <br/> tags only in .html files only
          
        if(listOfFiles[i].getName().endsWith(\".html\")){
              
            fis = new FileInputStream(listOfFiles[i].getName());
            reader = new BufferedReader(new InputStreamReader(fis));
       
            //Reading File line by line using BufferedReader
       
            String line = reader.readLine().toLowerCase();
            while(line != null){
              
                //Check <br/> is a substring in the current line as we converted the line already to lower case.
                int index1 = line.indexOf(\"<br/>\");
                if (index1 != -1){
                    countofBR++;
                }
                line = reader.readLine();
            }
        }
      
       }else{
          //Repeat the same process above as this is a directory if you want to check deeper.
          //Else Leave this if you need only the <br/> count of the files present in the current root directory only.
       }
       }
       
    } catch (Exception ex) {
            ex.printStackTrace();
    }
    //close the BufferedReader and FileInputStream objects.
    finally {
            try {
                reader.close();
                fis.close();
            } catch (Exception ex) {
                ex.printStackTrace();
            }
     }
}
}