public class Test05 {
public static void main(String[] args) {
List list = new ArrayList<>();
RandomAccessFile raf = null;
try {
raf = new RandomAccessFile("./emp.dat", "r");
for (int i = 0; i < raf.length() / 56; i++) {
raf.seek(i * 56);
byte[] data = new byte[32];
raf.read(data);
String name = new String(data, "utf-8").trim();
short age = raf.readShort();
data = new byte[10];
raf.read(data);
String gender = new String(data, "utf-8").trim();
int salary = raf.readInt();
long hiredate = raf.readLong();
Emp emp = new Emp(name, age, gender, salary, hiredate);
list.add(emp);
}
Collections.sort(list);
for (Emp emp : list) {
System.out.println(emp);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (raf != null) {
try {
raf.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
