Java: ListOfNumbers
Giải phóng thời gian, khai phóng năng lực
import java.io.*;
import java.util.List;
import java.util.ArrayList;
public class ListOfNumbers {
private List<Integer> list;
private static final int SIZE = 10;
public ListOfNumbers () {
list = new ArrayList<Integer>(SIZE);
for (int i = 0; i < SIZE; i++)
list.add(new Integer(i));
}
public void writeList() {
PrintWriter out = null;
try {
System.out.println("Entering try statement");
out = new PrintWriter(new FileWriter("OutFile.txt"));
for (int i = 0; i < SIZE; i++)
out.println("Value at: " + i + " = " + list.get(i));
} catch (IndexOutOfBoundsException e) {
System.err.println("Caught IndexOutOfBoundsException: " +
e.getMessage());
} catch (IOException e) {
System.err.println("Caught IOException: " + e.getMessage());
} finally {
if (out != null) {
System.out.println("Closing PrintWriter");
out.close();
} else {
System.out.println("PrintWriter not open");
}
}
}
}
Giải phóng thời gian, khai phóng năng lực