ObjectInputStream （2）

  1 package Aug14.IO;
  2
  3 import java.io.*;
  4 import java.util.*;
  5 import java.util.Map.Entry;
  6
  7 public class TestCurrentAccount {
  8
  9     private void objectWriter(Map<Integer, CurrentAccount> m, File f) {
 10         try {
 11             // File f = new File("D:\\Account.txt");
 12             ObjectOutputStream oos = new ObjectOutputStream(
 13                     new FileOutputStream(f));
 14             oos.writeObject(m);
 15             oos.flush();
 16             oos.close();
 17             System.out.println("File Writing Success");
 18         } catch (Exception e) {
 19             e.printStackTrace();
 20         }
 21     }
 22
 23     @SuppressWarnings("unchecked")
 24     private void objectReader(File f) {
 25         try {
 26
 27             ObjectInputStream ois = new ObjectInputStream(
 28                     new FileInputStream(f));
 29
 30             Map<Integer, CurrentAccount> m = (Map<Integer, CurrentAccount>) ois
 31                     .readObject();
 32
 33             Set view = m.entrySet();
 34             Iterator it = view.iterator();
 35             while (it.hasNext()) {
 36                 Entry<Integer, CurrentAccount> ca = (Entry<Integer, CurrentAccount>) it
 37                         .next();
 38                 CurrentAccount cur = ca.getValue();
 39                 System.out.println("Key:- " + ca.getKey() + "\tValues:- "
 40                         + cur.getAccountId() + "  " + cur.getName() + "  "
 41                         + cur.getBalanceAmount());
 42
 43             }
 44             ois.close();
 45         } catch (Exception e) {
 46             e.printStackTrace();
 47         }
 48         System.out.println("File Reading Success");
 49     }
 50
 51     @SuppressWarnings("unchecked")
 52     public static void main(String[] args) {
 53         Scanner reader = new Scanner(System.in);
 54         CurrentAccount cu;
 55         // Map map=new HashMap();
 56         Map<Integer, CurrentAccount> map = new HashMap<Integer, CurrentAccount>();
 57         for (int i = 0; i < 1; i++) {
 58             cu = new CurrentAccount();
 59
 60             System.out.println("Enter AccountId");
 61             cu.setAccountId(reader.nextInt());
 62             System.out.println("Enter name");
 63             cu.setName(reader.next());
 64             System.out.println("Enter balanceAmount");
 65             cu.setBalanceAmount(reader.nextDouble());
 66             map.put(10000 + i, cu);
 67         }
 68
 69         String answer = "No";
 70
 71         while (answer.equals("No") || !answer.equals("Yes")) {
 72             System.out.println("Enter the path to store the data:");
 73             // File f = new File("D:\\Account.txt");
 74             String path = reader.next();
 75             File file = new File(path);
 76
 77             if (file.exists()) {
 78                 System.out
 79                         .println("The file already exists ,do you want it being overwritten?(Yes/No)");
 80                 answer = reader.next();
 81
 82                 if (answer.equals("Yes")) {
 83                     TestCurrentAccount ta = new TestCurrentAccount();
 84                     ta.objectWriter(map, file);
 85                     ta.objectReader(file);
 86                     break;
 87                 } else if (answer.equals("No")) {
 88                     System.out
 89                             .println("Enter the new  path to store the data:");
 90
 91                 } else {
 92                     System.out
 93                             .println("Please enter the right answer,try again:");
 94                 }
 95             } else {
 96                 TestCurrentAccount ta = new TestCurrentAccount();
 97                 ta.objectWriter(map, file);
 98                 ta.objectReader(file);
 99                 break;
100
101             }
102
103         }
104     }
105 }
106
107 class CurrentAccount implements Serializable {
108     int AccountId;
109     String name;
110     double balanceAmount;
111
112     public int getAccountId() {
113         return AccountId;
114     }
115
116     public void setAccountId(int accountId) {
117         AccountId = accountId;
118     }
119
120     public String getName() {
121         return name;
122     }
123
124     public void setName(String name) {
125         this.name = name;
126     }
127
128     public double getBalanceAmount() {
129         return balanceAmount;
130     }
131
132     public void setBalanceAmount(double balanceAmount) {
133         this.balanceAmount = balanceAmount;
134     }
135
136 }

ObjectInputStream （2）