Read data from a file.
Object Oriented Software Engineering - Java
Khalilur Rahman
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package courseregistrationsystem2;
import java.io.BufferedReader;
import java.io.FileReader;
/**
*
* @author khal
*/
public class Main {
/**
* @param args the command line arguments
*/
static Course[] allCourses;
public static void main(String[] args) {
// TODO code application logic here
allCourses = new Course[50];
readSourceFile("StudentDataInput.txt");
}
public static void readSourceFile(String fileName){
String code, venue, title, instructor;
try {
FileReader fileReader = new FileReader(fileName);
BufferedReader in = new BufferedReader(fileReader);
int numberOfCourse = Integer.parseInt(in.readLine());
for (int i = 0; i < numberOfCourse; i++){
if ((code = in.readLine())== null) break;
if ((venue = in.readLine())== null) break;
if ((title = in.readLine())== null) break;
if ((instructor = in.readLine())== null) break;
createCourse(i, code, venue, title, instructor);
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
public static void createCourse(int index, String code, String venue,
String title, String instructor){
allCourses[index]= new Course();
allCourses[index].code = code;
allCourses[index].venue = venue;
allCourses[index].title = title;
allCourses[index].instructor = instructor;
System.out.println(allCourses[index].code);
System.out.println(allCourses[index].venue);
System.out.println(allCourses[index].title);
System.out.println(allCourses[index].instructor);
}
}
Object oriented Software Engineering - Java
Khalilur Rahman
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package courseregistration;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;
/**
*
* @author khal
*/
public class courseRegistration {
/**
* @param args the command line arguments
*/
static Course[] allCourses;
public static void main(String[] args) {
// TODO code application logic here
allCourses = new Course[50];
allCourses[0] = new Course();
allCourses[0].code = "CI6201";
allCourses[0].title = "Professional Seminar";
allCourses[0].venue = "LT2";
allCourses[0].instructor = "Paul Wu";
allCourses[0].academicUnit = 3;
allCourses[1] = new Course();
allCourses[1].code = "CI6202";
allCourses[1].title = "Information Architecture";
allCourses[1].venue = "LT3";
allCourses[1].instructor = "Chris Khoo";
allCourses[1].academicUnit = 3;
allCourses[2] = new Course();
allCourses[2].code = "CI6203";
allCourses[2].title = "Software Engineering";
allCourses[2].venue = "LT5";
allCourses[2].instructor = "W K Ng";
allCourses[2].academicUnit = 3;
displayCourse();
pickCourse();
pickCourseCode();
}
public static void displayCourse(){
try {
for (int i = 0; i < 50; i++ ){
if (allCourses[i]==null) break;
System.out.println(allCourses[i].code);
System.out.println(allCourses[i].title);
System.out.println(allCourses[i].instructor);
System.out.println(allCourses[i].venue);
System.out.println(allCourses[i].academicUnit);
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
public static void pickCourse(){
try {
System.out.print("Enter the course code: ");
BufferedReader in = new BufferedReader(
new InputStreamReader(System.in));
int i = Integer.parseInt(in.readLine());
System.out.println(allCourses[i].code);
System.out.println(allCourses[i].title);
System.out.println(allCourses[i].instructor);
System.out.println(allCourses[i].venue);
System.out.println(allCourses[i].academicUnit);
} catch (Exception e) {
}
}
public static void pickCourseCode(){
try {
System.out.print("Enter course ID: ");
BufferedReader in = new BufferedReader(
new InputStreamReader(System.in));
String code = in.readLine();
for (int i =0; i < 50; i++){
if (allCourses[i]==null) break;
if (allCourses[i].code.equals(code)){
System.out.println(allCourses[i].code);
System.out.println(allCourses[i].title);
System.out.println(allCourses[i].instructor);
System.out.println(allCourses[i].venue);
System.out.println(allCourses[i].academicUnit);
}
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
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