下面程式碼包括賦值多個圖片，物件的序列化，目的是將物件狀態存入檔案，再把物件狀態從檔案中讀取。

DataInputStream dis;
        DataOutputStream dos;
        FileInputStream fi = null;
        FileOutputStream fo = null;
        try {
            /*
            dis=new DataInputStream(new FileInputStream("D:\\java\\zs2\\feifei.png"));
            dos=new DataOutputStream(new FileOutputStream("D:\\java\\zs2\\fafa.png"));
            */
 


            int copytime=100;
            while(copytime-->0){        //while迴圈批量複製
                fi=null;
                fo=null;
                Thread.sleep(300);
                fi=new FileInputStream("D:\\java\\zs2.jpg");
                fo=new FileOutputStream("D:\\java\\zs2"+copytime+".jpg");//拼接成一百個不同的命名
 

                int n=0;
                while((n=fi.read())!=-1){       //單個檔案裡，用n存read()值，n傳給write()，read()write()只能一一對應。
                    fo.write(n);
                }
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch
 
 (InterruptedException e) {
            e.printStackTrace();
        }
        try {
            fi.close();
            fo.close();
        } catch (IOException e) {
            e.printStackTrace();
        }


        ObjectOutputStream oos=null;        //序列化
        fo=null;
        try {
            fo=new FileOutputStream("D:\\java\\zs2\\eatshit.dll");
            oos=new ObjectOutputStream(fo);
            man m=new Main().new man(5,"shit",'M');//相關的類以及外部類都要實現Serializable介面
            oos.writeObject(m);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        try {
            fo.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

        fi=null;
        ObjectInputStream ois=null;     //反序列化
        try {
            fi=new FileInputStream("D:\\java\\zs2\\eatshit.dll");
            ois=new ObjectInputStream(fi);
            man m=(man)ois.readObject();
            System.out.println(m.age+" "+m.name+" "+m.sex);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

        try {
            fi.close();
        } catch (IOException e) {
            e.printStackTrace();
        }