TestDataGenerator

TestDataGenerator.java

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

public class TestDataGenerator {

    public static void main(String[] args) {
        int maxSize = 100;
        int counter = 0;

        try {
            FileWriter fw = new FileWriter("testdata.txt", true);
            BufferedWriter bw = new BufferedWriter(fw);
            PrintWriter out = new PrintWriter(bw);

            for (int i = 0; i < 5; i++) {
                out.print("Data: ");
              
                for (int j = 0; j < maxSize; j++) {
                    long n = (int) (java.lang.Math.random() * 99);
                    out.print(" " + n);
                    counter = counter + 1;
                }

                out.println("");
                maxSize = maxSize * 10;
            }
          
            out.flush();
            bw.flush();
            fw.flush();
        } catch (IOException e) {
            e.printStackTrace();
        }

        System.out.println("Numbers generated: " + counter);
        System.exit(0);
    }
}