Home java Why are written in file part2_sorted.txt question marks?

Why are written in file part2_sorted.txt question marks?

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My code work and part2.txt file writes everything correctly. But when sorting and reading data from the part2.txt file, problems begin with the array. When I want a sorted array to write down to the end file part2_sorted.txt – it records the question marks everywhere. How to prevent this and make the correct entry of the sorted array?

import java.io. *;
Import java.util.scanner;
Public Class PART2 {
  Public Static Void Main (String [] Args) {
    File File = New File ("C: \\ Users \\ kostevich.bogdan \\ Ideaprojects \\ Untitled13 \\ Part2.txt");
    Try {
      file.createnewfile ();
    } Catch (IoException E) {
      E.PrintStackTrace ();
    }
    int [] INPUT = NEW INT [10];
    For (int i = 0; i & lt; input.length; i ++) {
      INPUT [i] = (int) (math.random () * 50);
    }
    Try (FileWriter FileWriter = New FileWriter (File)) {
      For (int i = 0; i & lt; input.length; i ++) {
        filewriter.write (INPUT [i] + ");
      }
    } Catch (IoException E) {
      E.PrintStackTrace ();
    }
    int [] OUTPUT = new int [input.length];
    Try (FileReader FileReader = New FileReader (File);
       Scanner SC = NEW Scanner (FileReader)) {
      For (int i = 0; I & lt; Output.Length; I ++) {
        OUTPUT [i] = SC.NEXTINT ();
      }
    } Catch (IoException E) {
      E.PrintStackTrace ();
    } finally {
      Algorithm (Output);
    }
    File2 = New File ("C: \\ Users \\ kostevich.Bogdan \\ Ideaprojects \\ Untitled13 \\ part2_sorted.txt");
    Try {
      file.createnewfile ();
    } Catch (IoException E) {
      E.PrintStackTrace ();
    }
    Try (FileWriter FileWriter = New FileWriter (File2)) {
      For (int i = 0; I & lt; Output.Length; I ++) {
        filewriter.write (Output [i]);
      }
    } Catch (IoException E) {
      E.PrintStackTrace ();
    }
    StringBuilder StringBuilderInderPut = New StringBuilder ();
    StringBuilder StringBuilderOutput = new stringbuilder ();
    try (SCANNER Scanner = New Scanner (New FileReader (File));
       Scanner Scanner1 = New Scanner (New FilerEader (File2)) {
      stringbuilderinput.append ("Input == & gt;");
      StringBuilderOutput.append ("Output == & gt;");
      For (int i = 0; i & lt; input.length; i ++) {
        stringbuilderinput.append (Input [i] + "");
      }
      For (int i = 0; I & lt; Output.Length; I ++) {
        StringBuilderOutput.append (Output [i] + ");
      }
    } Catch (FileNotFoundException E) {
      E.PrintStackTrace ();
    } finally {
      System.out.printLN (stringbuilderinput.tostring ());
      System.out.PrintLN (stringbuilderoutput.tostring ());
    }
  }
  Public Static Void Algorithm (int [] arr) {
    For (int i = 0; i & lt; arr.length; I ++) {
      For (int j = 0; j & lt; i; j ++) {
        if (Arr [i] & lt; arr [j]) {
          int temp = arr [j];
          arr [j] = arr [i];
          ARR [I] = TEMP;
        }
      }
    }
  }
}

Answer 1, Authority 100%

Error in the following – In the first case, you call Void Write (String Str) Throws IoException Class Writer , and in the second – void write (int c) Throws IoException Class OutputStreamwriter , which “Writes a Single Character” (i.e., one char is encoded by one Integer Ohm.) .
The resulting error suggests to solve the following way – first write down everything into one line using StringBuilder , and then write to the file of it (the resulting instance of the StringBuilder class).

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