MyFileHandler – new

 

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

import java.io.BufferedWriter;

import java.io.FileWriter;

import java.io.Writer;

 

 

public class MyFileHandler {

     private String content;

     private File file;

     private FileReader reader;

     private String fileName;

     private int numOfLines;

   

   

     public MyFileHandler(String fileName){

          this.fileName = fileName;

          content = "";

          file = new File(fileName);

          numOfLines = 0;

     }

     public void readMyFile(){

          try {

            reader = new FileReader(file);

            char[] chars = new char[(int) file.length()];

            reader.read(chars);

            content = new String(chars);

            reader.close();

        } catch (IOException e) {

            e.printStackTrace();

        }

          String [] LinesArr = content.split("\n");

          numOfLines = LinesArr.length;

     }

     public  String [] Lines(){

          String [] LinesArr = content.split("\n");

          numOfLines = LinesArr.length;

          return LinesArr;

     }

     public String [] LineItems(int lineNumber){

          String [] words = Lines()[lineNumber].split(",");

          return words;

     }

   

     public String getFileName() {

          return fileName;

     }

     public void setFileName(String fileName) {

          this.fileName = fileName;

     }

     public String getContent() {

          return content;

     }

     public int getNumOfLines() {

          return numOfLines;

     }

     public void addLine(String str){

     try {

            Writer output;

            str += System.lineSeparator() ;

            output = new BufferedWriter(new FileWriter(fileName,true));  //clears file every time

            output.append(str);

            output.close();

 

     }

     catch (IOException e) {

            e.printStackTrace();

     }

     readMyFile();

     }

     public void rewriteFile(String str){

     try {

            Writer output;

            str += "" ;;

            output = new BufferedWriter(new FileWriter(fileName));  //clears file every time

            output.append(str);

            output.close();

 

     }

     catch (IOException e) {

            e.printStackTrace();

     }

     readMyFile();

     }

}

 

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