Question

Im trying to output an integer array to a file and have hit a snag. The code executes properly, no errors thrown, but instead of giving me a file containing the numbers 1-30 it gives me a file filled with [] [] [] [] [] I have isolated the problem to the included code segment.

try
       {
       BufferedWriter bw = new BufferedWriter(new FileWriter(filepath));
       int test=0;
       int count=0;
        while(count<temps.length)
        {
          test=temps[count];  
          bw.write(test);
          bw.newLine();
          bw.flush();
          count++;
        }
       }
       catch(IOException e)
       {
           System.out.println("IOException: "+e);
       }

filepath refers to the location of the output file. temps is an array containing the values 1-30. If anymore information is necessary, i will be happy to provide.

Answer 1

BufferedWriter.write(int) writes the character value of the int, not the int value. So outputing 65 should put the letter A to file, 66 would print B…etc. You need to write the String value not the int value to the stream.

Use BufferedWriter.write(java.lang.String) instead

bw.write(String.valueOf(test));