Question

Java. Please use the list of numbers from input.txt

Objectives - practice sorting arrays - practice file 10 Description Assume there is a file called input.txt containing multiple integers (one on each line) Create a code that writes the numbers from input.txt into a file called output.txt in sorted order (ascending). Submission Demonstrate the functionality of your code to me by the assigned due date.

Answer 1

import java.io.*;
import java.util.*;
public class abc
{
public static void main(String[] args)throws Exception
{
  

List<Integer> list = new ArrayList<Integer>();//creating an array list
File file = new File("F:\\abc\\input.txt"); //giving the path of file
  
BufferedReader br = new BufferedReader(new FileReader(file)); //using bufferedreader
FileWriter fw=new FileWriter("output.txt");//creating file variables
  
String s;
   while((s = br.readLine()) != null)
{
  
  
   //converting string to integer and adding to the list
   list.add(Integer.parseInt(s));
  

}
Collections.sort(list);// sorting the list using collections
  
for(int i : list){
fw.write(i+"\n");// writing the list into output.txt
}
fw.close();
//name the filename as the class name
}}