[Q#16247623][A#16247861] How to read from a file and save the content into a linked list?

https://stackoverflow.com/q/16247623

I'm trying to write the code for a program that saves the content of a txt file into a singly linked list, every line in the txt file represent an object. I used Scanner to read from the file but I don't know how to get the words in the list. any tip or hint is highly appreciated. my attempt: class Item class Node class ListItems class FileItems

Answer

https://stackoverflow.com/a/16247861

Open the text file and read each line as a String and place that String object into a LinkedList. Print all of the lines in the LinkedList in reverse order.

APIzation

import java.util.*;
import java.io.*;

public class FileLinkList
{
public static void main(String args[])throws IOException{
String content = new String();
int count=1;
File file = new File("abc.txt");
LinkedList<String> list = new LinkedList<String>();

 try {
Scanner sc = new Scanner(new FileInputStream(file));
while (sc.hasNextLine()){
content = sc.nextLine();
list.add(content);
}
sc.close();
}catch(FileNotFoundException fnf){
fnf.printStackTrace();
}
catch (Exception e) {
e.printStackTrace();
System.out.println("\nProgram terminated Safely...");
}

Collections.reverse(list);
Iterator i = list.iterator();
while (i.hasNext()) {
System.out.print("Node " + (count++) + " : ");
System.out.println(i.next());
}
 }
 }

package com.stackoverflow.api;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Scanner;

public class Human16247861 {

  public static LinkedList readFileIntoLinkedList(File file) {
    String content = new String();
    int count = 1;
    LinkedList<String> list = new LinkedList<>();

    try {
      Scanner sc = new Scanner(new FileInputStream(file));
      while (sc.hasNextLine()) {
        content = sc.nextLine();
        list.add(content);
      }
      sc.close();
    } catch (FileNotFoundException fnf) {
      fnf.printStackTrace();
    } catch (Exception e) {
      e.printStackTrace();
      System.out.println("\nProgram terminated Safely...");
    }

    Collections.reverse(list);
    Iterator i = list.iterator();
    while (i.hasNext()) {
      System.out.print("Node " + (count++) + " : ");
      System.out.println(i.next());
    }
    return list;
  }
}

package com.stackoverflow.api;

import java.io.*;
import java.util.*;

/**
 * How to read from a file and save the content into a linked list?
 *
 * @author APIzator
 * @see <a href="https://stackoverflow.com/a/16247861">https://stackoverflow.com/a/16247861</a>
 */
public class APIzator16247861 {

  public static void read(String str1) throws IOException {
    String content = new String();
    int count = 1;
    File file = new File(str1);
    LinkedList<String> list = new LinkedList<String>();
    try {
      Scanner sc = new Scanner(new FileInputStream(file));
      while (sc.hasNextLine()) {
        content = sc.nextLine();
        list.add(content);
      }
      sc.close();
    } catch (FileNotFoundException fnf) {
      fnf.printStackTrace();
    } catch (Exception e) {
      e.printStackTrace();
      System.out.println("\nProgram terminated Safely...");
    }
    Collections.reverse(list);
    Iterator i = list.iterator();
    while (i.hasNext()) {
      System.out.print("Node " + (count++) + " : ");
      System.out.println(i.next());
    }
  }
}