Initial commit 8.1

src/main/java/_8/Date.java

@@ -0,0 +1,106 @@
+package _8;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Date {
+	
+	private int year;
+	private int month;
+	private int day;
+	private int hour;
+	private String lectureHall = "";
+	private List<String> topics = new ArrayList<>();
+	
+	public Date() {
+		super();
+	}
+	
+	public Date(int year, int month, int day, int hour, String lectureHall) {
+		super();
+		this.year = year;
+		this.month = month;
+		this.day = day;
+		this.hour = hour;
+		this.lectureHall = lectureHall;
+	}
+
+	public int getYear() {
+		return year;
+	}
+
+	public void setYear(int year) {
+		this.year = year;
+	}
+
+	public int getMonth() {
+		return month;
+	}
+
+	public void setMonth(int month) {
+		this.month = month;
+	}
+
+	public int getDay() {
+		return day;
+	}
+
+	public void setDay(int day) {
+		this.day = day;
+	}
+
+	public int getHour() {
+		return hour;
+	}
+
+	public void setHour(int hour) {
+		this.hour = hour;
+	}
+
+	public String getLectureHall() {
+		return lectureHall;
+	}
+
+	public void setLectureHall(String lectureHall) {
+		this.lectureHall = lectureHall;
+	}
+
+	public List<String> getTopics() {
+		return topics;
+	}
+
+	public void addTopics(String topic) { topics.add(topic); }
+
+	@Override
+	public String toString() {
+		StringBuilder result = new StringBuilder();
+		result.append(year);
+		result.append("-");
+		result.append(month);
+		result.append("-");
+		result.append(day);
+		result.append(" ");
+		result.append(hour);
+		result.append(":00, ");
+		result.append(lectureHall);
+		result.append(" ");
+		result.append(topics);
+		return result.toString();
+	}
+
+	public void load(DataInputStream dis) throws IOException {
+	    this.setYear(dis.readInt());
+	    this.setMonth(dis.readInt());
+        this.setDay(dis.readInt());
+        this.setHour(dis.readInt());
+        this.setLectureHall(dis.readUTF());
+
+        int numberOfTopics = dis.readInt();
+        for (int i = 0; i < numberOfTopics; i++) {
+            this.addTopics(dis.readUTF());
+        }
+	}
+
+}

src/main/java/_8/Lecture.java

@@ -0,0 +1,141 @@
+package _8;
+
+import java.io.DataInputStream;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Lecture {
+
+    private String number = "";
+    private String title = "";
+    private String shortTitle = "";
+    private String semester = "";
+    private List<Lecturer> lecturers = new ArrayList<>();
+    private List<Date> schedule = new ArrayList<>();
+
+    public Lecture(String number, String title, String shortTitle, String semester) {
+        super();
+        this.number = number;
+        this.title = title;
+        this.shortTitle = shortTitle;
+        this.semester = semester;
+    }
+
+    public String getNumber() {
+        return number;
+    }
+
+    public void setNumber(String number) {
+        this.number = number;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getShortTitle() {
+        return shortTitle;
+    }
+
+    public void setShortTitle(String shortTitle) {
+        this.shortTitle = shortTitle;
+    }
+
+    public String getSemester() {
+        return semester;
+    }
+
+    public void setSemester(String semester) {
+        this.semester = semester;
+    }
+
+    public List<Lecturer> getLecturers() {
+        return lecturers;
+    }
+
+    public List<Date> getSchedule() {
+        return schedule;
+    }
+
+    public void addLecturers(Lecturer lecturer) {
+        this.lecturers.add(lecturer);
+    }
+
+    public void addSchedule(Date date) {
+        this.schedule.add(date);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder result = new StringBuilder();
+        result.append(number);
+        result.append(": ");
+        result.append(title);
+        result.append(" (");
+        result.append(shortTitle);
+        result.append("), ");
+        result.append(semester);
+        result.append("\n\t");
+        for (int i = 0; i < lecturers.size(); i++) {
+            if (i > 0) {
+                result.append(", ");
+            }
+            result.append(lecturers.get(i));
+        }
+        for (Date date : schedule) {
+            result.append("\n\t- ");
+            result.append(date);
+        }
+        result.append("\n");
+        return result.toString();
+    }
+
+    public static Lecture load(String filename) throws IOException {
+        Lecture result = null;
+        InputStream in = null;
+        try {
+            in = new FileInputStream(filename);
+            result = load(in);
+        } finally {
+            if (in != null) {
+                in.close();
+            }
+        }
+        return result;
+    }
+
+    public static Lecture load(InputStream in) throws IOException {
+        DataInputStream inDataStream = new DataInputStream(in);
+        Lecture result = new Lecture(inDataStream.readUTF(), inDataStream.readUTF(), inDataStream.readUTF(), inDataStream.readUTF());
+
+        int numberOfLectuerers = inDataStream.readInt();
+        for (int i = 0; i < numberOfLectuerers; i++) {
+            Lecturer lecturer = new Lecturer();
+            lecturer.load(inDataStream);
+            result.addLecturers(lecturer);
+        }
+
+        int numberOfDates = inDataStream.readInt();
+        for (int k = 0; k < numberOfDates; k++) {
+            Date date = new Date();
+            date.load(inDataStream);
+            result.addSchedule(date);
+        }
+        return result;
+    }
+
+    //public static void saveText(String filename, Lecture data) throws IOException {
+    //TODO: implement this (task 2)
+    //}
+
+    //public static Lecture loadText(String filename) throws IOException {
+    //TODO: implement this (task 2)
+    //}
+}

src/main/java/_8/Lecturer.java

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+package _8;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+
+public class Lecturer {
+	
+	private String firstName = "";
+	private String lastName = "";
+	
+	public Lecturer() {
+		super();
+	}
+	
+	public Lecturer(String firstName, String lastName) {
+		super();
+		this.firstName = firstName;
+		this.lastName = lastName;
+	}
+
+	public String getFirstName() {
+		return firstName;
+	}
+
+	public void setFirstName(String firstName) {
+		this.firstName = firstName;
+	}
+
+	public String getLastName() {
+		return lastName;
+	}
+
+	public void setLastName(String lastName) {
+		this.lastName = lastName;
+	}
+
+	@Override
+	public String toString() {
+		StringBuilder result = new StringBuilder();
+		result.append(firstName);
+		result.append(" ");
+		result.append(lastName);
+		return result.toString();
+	}
+
+	public void load(DataInputStream dis) throws IOException {
+		this.setFirstName(dis.readUTF());
+		this.setLastName(dis.readUTF());
+	}
+
+}

src/main/java/provided/_8/LectureOMP.java

@@ -0,0 +1,22 @@
+package provided._8;
+
+import _8.Lecture;
+import java.io.IOException;
+
+public class LectureOMP {
+
+	public static void main(String[] args) {
+		try {
+			// task 1
+			Lecture omp = Lecture.load("omp.dat");
+			System.out.println(omp);
+			// task 2
+			//Lecture.saveText("omp.txt", omp);
+			//omp = Lecture.loadText("omp.txt");
+			//System.out.println(omp);
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+
+}