Databases
StackOverflow2013
Postsdbo
POWriting and reading files, using loops, and analyzing data
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POWriting and reading files, using loops, and analyzing data
    primarykey
    data
    text
    <p>Im having a little trouble finishing my program. Here is what Ive got and the instructions. Create a file that holds 500 random numbers ranging from 0 - 1000, using a for loop to write the numbers into the file. Then 1. Find the smallest value 2. Find the largest value 3. Find the average and 4. determine how many time consecutive numbers came up. Im having issues with creating the random number file and step 4. Thanks in advance!</p> <pre><code> public static void main(String[] args) throws FileNotFoundException { PrintWriter prw = new PrintWriter("results.txt"); File numfile = new File("randomdata.txt"); Scanner infile = new Scanner(numfile); int num, largest, smallest, sum = 0, count = 0; int programnumber = 6; header (prw, programnumber ); double average = 0; Random gen = new Random(); System.out.println("From gen: "); for (int i = 0; i &lt; 1000; i++){ System.out.print(gen.nextInt(500) + ""); num = gen.nextInt(500); System.out.println(num); sum = sum + num; count++; average = (double) sum / count; } while (infile.hasNext()){ num = infile.nextInt(); largest = infile.nextInt(); smallest = infile.nextInt(); System.out.println(num); if (num &lt; largest){ largest = num; } if (num &gt; smallest){ smallest = num; } System.out.println("The largest is: " + largest); prw.println("The largest is: " + largest); System.out.println("The smallest is: " + smallest); prw.println("The smallest is: " + smallest); System.out.println("The average is: " + average); prw.println("The average is: " + average); } prw.close(); } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USChelsea
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POWriting and reading files, using loops, and analyzing data
      1. This table or related slice is empty.
      1. VTDownMod
    2. VO
      singulars
      1. POWriting and reading files, using loops, and analyzing data
      1. This table or related slice is empty.
      1. VTDownMod
    1. COSo, what is the issue?
      singulars
      1. POWriting and reading files, using loops, and analyzing data
      1. USAndreas Fester
    2. COI am not able to create the file with the random numbers, and I cant figure out how to do step 4
      singulars
      1. POWriting and reading files, using loops, and analyzing data
      1. USChelsea
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload