48 lines
1.4 KiB
Java
48 lines
1.4 KiB
Java
//: io/Logon.java
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// ©2015 MindView LLC: see Copyright.txt
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// Demonstrates the "transient" keyword.
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import java.util.concurrent.*;
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import java.io.*;
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import java.util.*;
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import static com.mindviewinc.util.Print.*;
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public class Logon implements Serializable {
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private Date date = new Date();
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private String username;
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private transient String password;
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public Logon(String name, String pwd) {
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username = name;
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password = pwd;
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}
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@Override
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public String toString() {
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return "logon info: \n username: " + username +
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"\n date: " + date + "\n password: " + password;
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}
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public static void main(String[] args) throws Exception {
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Logon a = new Logon("Hulk", "myLittlePony");
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print("logon a = " + a);
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try(ObjectOutputStream o = new ObjectOutputStream(
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new FileOutputStream("Logon.out"))) {
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o.writeObject(a);
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}
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TimeUnit.SECONDS.sleep(1); // Delay
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// Now get them back:
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ObjectInputStream in = new ObjectInputStream(
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new FileInputStream("Logon.out"));
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print("Recovering object at " + new Date());
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a = (Logon)in.readObject();
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print("logon a = " + a);
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}
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} /* Output:
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logon a = logon info:
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username: Hulk
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date: Mon Jun 15 15:47:51 PDT 2015
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password: myLittlePony
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Recovering object at Mon Jun 15 15:47:52 PDT 2015
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logon a = logon info:
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username: Hulk
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date: Mon Jun 15 15:47:51 PDT 2015
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password: null
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*///:~
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