1. Serializable, ObjectOutputStream, FileOutputStream import java.io.FileOutputStream; import java.io.ObjectOutputStream; import java.io.Serializable; import java.util.*; class Sawon implements Serializable { private int sabun; private String name; private String dept; public int getSabun() { return sabun; } public void setSabun(int sabun) { this.sabun = sabun; } public String getName() { return..
