Mega Code Archive
Data file
<![CDATA[
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.StringTokenizer;
public class DataFileTest {
static void writeData(Employee e, PrintWriter out) throws IOException {
e.writeData(out);
}
static Employee readData(BufferedReader in) throws IOException {
Employee e = new Employee();
e.readData(in);
return e;
}
public static void main(String[] args) {
Employee staff = new Employee("Java Source", 35500);
staff.raiseSalary(5.25);
try {
PrintWriter out = new PrintWriter(new FileWriter("employee.dat"));
writeData(staff, out);
out.close();
} catch (IOException e) {
System.out.print("Error: " + e);
System.exit(1);
}
try {
BufferedReader in = new BufferedReader(new FileReader(
"employee.dat"));
Employee e = readData(in);
e.print();
in.close();
} catch (IOException e) {
System.out.print("Error: " + e);
System.exit(1);
}
}
}
class Employee {
private String name;
private double salary;
public Employee(String n, double s) {
name = n;
salary = s;
}
public Employee() {
}
public void print() {
System.out.println(name + " " + salary );
}
public void raiseSalary(double byPercent) {
salary *= 1 + byPercent / 100;
}
public void writeData(PrintWriter out) throws IOException {
out.println(name + "|" + salary);
}
public void readData(BufferedReader in) throws IOException {
String s = in.readLine();
StringTokenizer t = new StringTokenizer(s, "|");
name = t.nextToken();
salary = Double.parseDouble(t.nextToken());
}
}
]]>