CIS 260 TestSeq4.java

Code

import java.io.*;
import java.util.*;

class Record implements Serializable {
    private int id;
    private String name;
        
    public Record(int id, String name) { setID(id); setName(name); }
    public void setID(int id) { this.id= id; }
    public void setName(String name) {
        if (name == null) this.name = "";
        else this.name = name;
    }
    public int getID() { return id; }
    public String getName() { return name; }
    public String toString() { return String.format("%04d-> %s", id, name); }
}

public class TestSeq4 {
    public static void main(String[] args) {
        ObjectInputStream in = null;
        int readCount = 0;
        int writeCount = 0;
        System.out.printf("Records found in file:\n");
        try {
            in = new ObjectInputStream(new FileInputStream("records3.txt"));
            while (true) {
                try {
                    Record r = (Record) in.readObject();
                    readCount++;
                    System.out.println(r);
                    writeCount++;
                } catch (EOFException e2) {
                    // this is expected and OK
                    break;
                }
            }
        } catch (Exception e1) {
            System.err.println(e1.getMessage());
        }
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {}
        }
        System.out.println("\nRecords read: " + readCount);
        System.out.println("Records written: " + writeCount);
    }
}