Write comments in every single line in java

package com.company;

import java.lang.*;
import java.io.FileWriter;
import java.util.*;
import java.time.format.DateTimeFormatter;
import java.time.LocalDateTime;
import java.lang.*;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.FileWriter;
import java.util.*;
import java.time.format.DateTimeFormatter;
import java.time.LocalDateTime;


public class Main {


public static void main(String[] args) {

Scanner sc=new Scanner(System.in);
System.out.println("Enter Name");
String name=sc.nextLine();
System.out.println("Enter ID");
String id=sc.nextLine();

try
{
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
LocalDateTime now = LocalDateTime.now();
FileWriter fw=new FileWriter("D:testout.txt");
fw.write(name+" "+id+" "+dtf.format(now));
fw.close();
System.out.println("Registered successfully");

}
catch(Exception e){System.out.println(e);}
System.out.println("Success...");
System.out.println("");
System.out.println("Enter ID To see your vaccine dose data and time ");

BufferedReader br;
String line = "";

int found=0;
String st=sc.nextLine();
try {
br = new BufferedReader(new FileReader("D:testout.txt"));
try {
while((line = br.readLine()) != null)
{

String[] words = line.split(" ");

for (String word : words) {
if (word.equals(st)) {
found=1;
break;
}
}
}
br.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(found==1)
{
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
LocalDateTime now = LocalDateTime.now();
LocalDateTime tom = now.plusDays(7);
LocalDateTime tom1 = tom.plusDays(27);
System.out.println("First Dose is "+dtf.format(tom));
System.out.println("Second Dose is "+dtf.format(tom1));
}
else
System.out.println("Candidate have not registered");

}

}