title: Java - Reading .txt file and storing as Array
body: <p>I need help with the following code-  </p>
  
  <p>The program is supposed to read a text file that is a list of integers, sort them according to either ascending or descending order depending on the user's choice and export that as a text file. The code worked fine when the integers were included inside the code as an array, before I attempted to read the file with java in the first method. After, nothing was printed to match user input.</p>
  
  <p>Here's what I have currently: </p>
  
  <pre><code>import java.io.File; 
  import java.io.FileNotFoundException;
  import java.util.Arrays;
  import java.util.Scanner; 
  
  public class BubbleSorting { 
  
  public static int[] readFiles(String file) throws FileNotFoundException{ 
          File f= new File("input.txt"); 
          Scanner x= new Scanner(f); 
  
          int [] intArray= new int[100]; 
  
          Scanner s1= new Scanner(f); 
  
          for (int i=0; i&lt; intArray.length; i++)
              intArray[i] = s1.nextInt(); 
  
          return intArray; 
      }
  
  public static void main (String[] args) throws FileNotFoundException  { 
  
  int[] intArray= readFiles("input.txt"); 
  
  System.out.println("Select from the following options:\n (A) Sort integers by ascending order \n (B) Sort by descending order "
          + "\n (C) Both. \n Please input your selection below.");
  
  Scanner a = new Scanner(System.in);
  String choice = a.nextLine(); 
  
  if (choice.equals("A") || choice.equals("a")) {
  
      bubbleSortInASC(intArray);   
  
      System.out.println("You have chosen to sort in ascending order:");   
      //print array after sorting using bubble sort algorithm
  
      for(int i=0; i &lt; intArray.length; i++){
              System.out.println(intArray[i]);}}
  
  else if (choice.equals("B") || choice.equals("b")) { 
  
  //sort an array in descending order using bubble sort algorithm
  bubbleSortDSC(intArray);
  
  System.out.println("You have chosen to sort in descending order:");
  //print array after sorting using bubble sort algorithm
  
  for(int i=0; i &lt; intArray.length; i++){
          System.out.println(intArray[i] + " ");
  }}
  
  else if (choice.equals("C") || choice.equals("c")) {
  
      System.out.println("You have chosen to sort in both ascending and descending order.");
  
      bubbleSortInASC(intArray); 
      System.out.println("In ascending order: "); 
      for(int i=0; i &lt; intArray.length; i++){
          System.out.println(intArray[i]+ " "); }
  
      bubbleSortDSC(intArray);
      System.out.println("\nIn descending order: "); 
      for(int i=0; i &lt; intArray.length; i++){
          System.out.println(intArray[i]+ " " ); }
  }
  else { 
      System.out.println("That was not one of the options provided. Please try again."); 
  }
  
      }
  
  public static void bubbleSortDSC(int intArray[]) {
  
      int n = intArray.length;
      int temp = 0;
  
      for(int i=0; i &lt; n; i++){
              for(int j=1; j &lt; (n-i); j++){
  
                      if(intArray[j-1] &lt; intArray[j]){
                              //swap the elements!
                              temp = intArray[j-1];
                              intArray[j-1] = intArray[j];
                              intArray[j] = temp;}      
              }} 
      }
  
  public static void bubbleSortInASC(int numbers[])
      {
          int temp;
  
          for(int i = 0; i &lt; numbers.length; i++)
          {
              for(int j = 1; j &lt; (numbers.length -i); j++)
              {
                  //if numbers[j-1] &gt; numbers[j], swap the elements
                  if(numbers[j-1] &gt; numbers[j])
                  {
                      temp = numbers[j-1];
                      numbers[j-1]=numbers[j];
                      numbers[j]=temp;
                  }
              }
          }}
  } 
  </code></pre>
  
  <p>Any help would be much appreciated. </p>