用ObjectStream,给你个例子: --------------- Manager boss = new Manager("Carl Cracker", 80000, 1987, 12, 15); boss.setBonus(5000);Employee[] staff = new Employee[3];staff[0] = boss; staff[1] = new Employee("Harry Hacker", 50000, 1989, 10, 1); staff[2] = new Employee("Tony Tester", 40000, 1990, 3, 15);try { // save all employee records to the file employee.dat ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("employee.dat")); out.writeObject(staff); out.close(); // retrieve all records into a new array ObjectInputStream in = new ObjectInputStream(new FileInputStream("employee.dat")); Employee[] newStaff = (Employee[]) in.readObject(); in.close(); // print the newly read employee records for (Employee e : newStaff) System.out.println(e); } catch (Exception e) { e.printStackTrace(); }
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Manager boss = new Manager("Carl Cracker", 80000, 1987, 12, 15);
boss.setBonus(5000);Employee[] staff = new Employee[3];staff[0] = boss;
staff[1] = new Employee("Harry Hacker", 50000, 1989, 10, 1);
staff[2] = new Employee("Tony Tester", 40000, 1990, 3, 15);try
{
// save all employee records to the file employee.dat
ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("employee.dat"));
out.writeObject(staff);
out.close(); // retrieve all records into a new array
ObjectInputStream in = new ObjectInputStream(new FileInputStream("employee.dat"));
Employee[] newStaff = (Employee[]) in.readObject();
in.close(); // print the newly read employee records
for (Employee e : newStaff)
System.out.println(e);
}
catch (Exception e)
{
e.printStackTrace();
}