CODEWITHSUNDEEP
java
Daniela Gocheva
Daniela Gocheva

Reputation: 63

Writing System.Out.Println into text file

I need to write those System.out.printlns into a text file, but I have no idea how this could happen so I need some help from someone advanced.

  System.out.println("You have have entered "+EnteredNumbers+ " numbers!");
  System.out.println("You have have entered "+Positive+ " Positive numbers!");
  System.out.println("The Average of the Positive Numebers is "+AveragePositive+ "!");
  System.out.println("You have have entered "+Negative+ " Negative numbers!");
  System.out.println("The Sum of the Negative numbers is "+NegativeSum+ "!");

And here is the whole code:

import java.io.*; 

public class Nums { 
  public static void main(String args[]) 
    throws IOException 
  { 
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
    String str;
    int EnteredNumbers = -1;
    int Positive = 0;
    int Negative = 0;
    int NegativeSum = 0;
    int PositiveSum = 0; 
    double AveragePositive = 0;

    System.out.println("Enter '0' to quit."); 
    System.out.println("Enter Numbers: "); 
   try{
    do { 
      EnteredNumbers++;
      str = br.readLine();
      int num = Integer.parseInt(str);
      if (num>0)
      {
        Positive++;
        PositiveSum+=num;
      }
      else if (num<0)
      {
        Negative++;
        NegativeSum+=num;
      }
       } 
    while(!str.equals("0")); 
      AveragePositive = (double)PositiveSum/(double)Positive;  
      System.out.println("You have have entered "+EnteredNumbers+ " numbers!");
      System.out.println("You have have entered "+Positive+ " Positive numbers!");
      System.out.println("The Average of the Positive Numebers is "+AveragePositive+ "!");
      System.out.println("You have have entered "+Negative+ " Negative numbers!");
      System.out.println("The Sum of the Negative numbers is "+NegativeSum+ "!");

      }
    catch (java.lang.NumberFormatException ex)
    {
        System.out.println("Invalid Format!");
    }  
} 
}

I am a beginner and I would love to get some help!

Upvotes: 0

Views: 7704

Answers (3)

Kapil
Kapil

Reputation: 11

you can use setOut() method for filewrite with System.out.println(); after call setOut() whenever use System.out.println() then the method sop will be print on file or whichever you give in setOut() method

Upvotes: 1

fge
fge

Reputation: 121702

This is 2014. So there is java.nio.file.

Therefore:

final List<String> list = new ArrayList<>();

list.add("first string here");
list.add("other string");
// etc etc

Then:

final Path path = Paths.get("path/to/write/to");

Files.write(path, list, StandardCharsets.UTF_8, StandardOpenOption.CREATE);

And don't use File.

Upvotes: 0

Eng.Fouad
Eng.Fouad

Reputation: 117569

System.out is a PrintStream that writes to the standard output. You need to create a FileOutputStream and decorates it with PrintStream (or better FileWriter with PrintWriter):

File file = new File("C:/file.txt");
FileWriter fw = new FileWriter(file);
PrintWriter pw = new PrintWriter(fw);
pw.println("Hello World");
pw.close();

Also see:

Upvotes: 4

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