import java.io.*; import java.util.*; public class TestClassB { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub String filename = "record.txt"; try { FileReader reader = new FileReader(filename); BufferedReader br = new BufferedReader(reader); int count = 0; String line = br.readLine(); while (line!=null && line.length() >0) { int num = Integer.parseInt(line); if (num < 125) count ++; System.out.printf("%d", num);System.out.println(); line = br.readLine(); } System.out.printf("<125 #=%d", count);System.out.println(); reader.close(); } catch (FileNotFoundException fe) { System.out.printf(fe.getMessage()); return; } catch (IOException ie) { System.out.printf(ie.getMessage()); return; } } }
Archive for the ‘101(下)程式設計(二)’ Category
import java.io.*; import java.util.*; public class TestClassA { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub String filename = "record.txt"; Random rdn = new Random(); int num=100; try { FileWriter writer = new FileWriter(filename); PrintWriter pw = new PrintWriter(writer); for (int i=0; i<10000; i++) { num = rdn.nextInt()%101; if (num <0) num = -num + 100; else num = num + 100; System.out.printf("%d", num);System.out.println(); pw.printf("%d", num); pw.println(); } writer.close(); } catch (FileNotFoundException fe) { System.out.printf(fe.getMessage()); return; } catch (IOException ie) { System.out.printf(ie.getMessage()); return; } } }