PROGRAM TO WRITE AND READ DATA FROM .CSV FILE IN JAVA

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;

public class Read1 { 

          public static void main(String[] args) throws IOException{

                   BufferedWriter bw = new BufferedWriter(new FileWriter("excel.csv"));

                   bw.write("101,Rakesh,MCA");

                   bw.newLine();

                   bw.write("102,Bikash,MCA");

                   bw.newLine();

                   bw.write("101,Harry,Btech");

                   bw.flush();

                   bw.close();

                   System.out.println("RollNo\tName\tBranch");

                   BufferedReader br = new BufferedReader(new FileReader("excel.csv"));

                   String line;

                   try{                              

                   while((line=br.readLine())!=null)

                   {

                             String lines[] = line.split(",");

                             System.out.println(lines[0]+"\t"+lines[1]+"\t"+lines[2]);                                               

                   }

                   }

                   catch(Exception e){}

                   br.close();           

          }

}

Output –

RollNo        Name                   Branch

101              Rakesh                 MCA

102             Bikash                  MCA

101              Harry                   Btech