Сидоренко Михаил ПрИ-201 Блок 4

task01/src/com/example/task01/Point.java

@@ -7,6 +7,32 @@ public class Point {
     int x;
     int y;
 
+    public Point() {
+        x = 0;
+        y = 0;
+    }
+
+    public Point(int x, int y){
+        this.x = x;
+        this.y = y;
+    }
+
+    void flip(){
+        int temp = x;
+        x = -y;
+        y = -temp;
+    }
+
+    double distance(Point point){
+        double distX = Math.pow(x-point.x,2);
+        double distY = Math.pow(y-point.y,2);
+        return Math.sqrt(distY + distX);
+    }
+
+    public String toString(){
+        return String.format("%d %d",x, y);
+    }
+
     void print() {
         String pointToString = String.format("(%d, %d)", x, y);
         System.out.println(pointToString);

task02/src/com/example/task02/Task02Main.java

@@ -2,6 +2,11 @@
 
 public class Task02Main {
     public static void main(String[] args) {
-
+        TimeSpan time1 = new TimeSpan(1,654,340);
+        TimeSpan time2 = new TimeSpan(0,34,1);
+        time1.add(time2);
+        System.out.println(time1.toString());
+        time1.setSeconds(60);
+        System.out.println(time1.toString());
     }
 }

task02/src/com/example/task02/TimeSpan.java

@@ -0,0 +1,66 @@
+package com.example.task02;
+
+public class TimeSpan {
+    private int hours;
+    private int minutes;
+    private int seconds;
+
+    public TimeSpan(int hours, int minutes, int seconds) {
+        this.hours = hours;
+        this.minutes = minutes;
+        this.seconds = seconds;
+        correctTime();
+    }
+    public int getHours() {
+        return hours;
+    }
+
+    public int getMinutes() {
+        return minutes;
+    }
+
+    public int getSeconds() {
+        return seconds;
+    }
+
+    public void setHours(int hours) {
+        this.hours = hours;
+        correctTime();
+    }
+
+    public void setMinutes(int minutes) {
+        this.minutes = minutes;
+        correctTime();
+    }
+
+    public void setSeconds(int seconds) {
+        this.seconds = seconds;
+        correctTime();
+    }
+
+    private void correctTime() {
+        int totalSecond = hours * 3600 + minutes * 60 + seconds;
+        hours = totalSecond / 3600;
+        minutes = (totalSecond % 3600) / 60;
+        seconds = (totalSecond % 3600) % 60;
+    }
+
+    void add(TimeSpan time) {
+        this.hours += time.hours;
+        this.minutes += time.minutes;
+        this.seconds += time.seconds;
+        correctTime();
+    }
+
+    void subtract(TimeSpan time) {
+        this.hours -= time.hours;
+        this.minutes -= time.minutes;
+        this.seconds -= time.seconds;
+        correctTime();
+    }
+
+    @Override
+    public String toString() {
+        return hours + ":" + minutes + ":" + seconds;
+    }
+}

task03/src/com/example/task03/ComplexNum.java

@@ -0,0 +1,40 @@
+package com.example.task03;
+
+public class ComplexNum {
+    private final double rePart;
+    private final double imPart;
+
+    public double getImPart() {
+        return imPart;
+    }
+
+    public double getRePart() {
+        return rePart;
+    }
+
+    public ComplexNum(double dPart, double mPart){
+        this.rePart = dPart;
+        this.imPart = mPart;
+    }
+
+    public ComplexNum Reverse(ComplexNum num){
+        return new ComplexNum(num.rePart,-num.imPart);
+    }
+
+    public ComplexNum Add(ComplexNum num){
+        return new ComplexNum(rePart + num.imPart, imPart + num.imPart);
+    }
+
+    public ComplexNum Multiply(ComplexNum num){
+        return new ComplexNum((rePart*num.rePart - imPart*num.imPart),(rePart*num.imPart + imPart*num.rePart));
+    }
+
+    @Override
+    public String toString(){
+        if(imPart>=0){
+            return rePart + "+" + imPart + "i";
+        }
+        return rePart + "-" + imPart + "i";
+    }
+
+}

task03/src/com/example/task03/Task03Main.java

@@ -2,6 +2,9 @@
 
 public class Task03Main {
     public static void main(String[] args) {
-
+        ComplexNum num1 = new ComplexNum(10,12);
+        ComplexNum num2 = new ComplexNum(2,-4);
+        System.out.println(num1.Multiply(num2));
+        System.out.println(num1.Add(num2));
     }
 }

task04/src/com/example/task04/Line.java

@@ -0,0 +1,28 @@
+package com.example.task04;
+
+public class Line {
+    private Point p1;
+    private Point p2;
+
+    public Line(Point p1, Point p2){
+        this.p1 = p1;
+        this.p2 = p2;
+    }
+
+    public Point getP1(){
+        return p1;
+    }
+
+    public Point getP2(){
+        return p2;
+    }
+
+    @Override
+    public String toString(){
+        return String.format("(%d,%d),(%d,%d)",p1.x,p1.y,p2.x,p2.y);
+    }
+
+    public boolean isCollinearLine(Point p) {
+        return (p2.x - p1.x) * (p.y - p1.y) - (p.x - p1.x) * (p2.y - p1.y) == 0;
+    }
+}

task04/src/com/example/task04/Point.java

@@ -0,0 +1,30 @@
+package com.example.task04;
+
+/**
+ * Класс точки на плоскости
+ */
+public class Point {
+    final int x;
+    final int y;
+
+    public Point(int x, int y){
+        this.x = x;
+        this.y = y;
+    }
+
+    double distance(Point point){
+        double distX = Math.pow(x-point.x,2);
+        double distY = Math.pow(y-point.y,2);
+        return Math.sqrt(distY + distX);
+    }
+
+    public String toString(){
+        return String.format("%d %d",x, y);
+    }
+
+    void print() {
+        String pointToString = String.format("(%d, %d)", x, y);
+        System.out.println(pointToString);
+    }
+}
+

task04/src/com/example/task04/Task04Main.java

@@ -2,6 +2,11 @@
 
 public class Task04Main {
     public static void main(String[] args) {
-
+        Point p1 = new Point(1,1);
+        Point p2 = new Point(2,2);
+        Line linux = new Line(p1,p2);
+        System.out.println(linux.isCollinearLine(new  Point(3,3)));
     }
 }
+
+

task05/src/com/example/task05/Point.java

@@ -4,25 +4,28 @@
  * Точка в двумерном пространстве
  */
 public class Point {
+    final private double x;
+    final private double y;
 
+    public Point(double x, double y){
+        this.x = x;
+        this.y = y;
+    }
     /**
      * Конструктор, инициализирующий координаты точки
      *
      * @param x координата по оси абсцисс
      * @param y координата по оси ординат
      */
-    public Point(double x, double y) {
-        throw new AssertionError();
-    }
+
 
     /**
      * Возвращает координату точки по оси абсцисс
      *
      * @return координату точки по оси X
      */
     public double getX() {
-        // TODO: реализовать
-        throw new AssertionError();
+        return x;
     }
 
     /**
@@ -31,8 +34,7 @@ public double getX() {
      * @return координату точки по оси Y
      */
     public double getY() {
-        // TODO: реализовать
-        throw new AssertionError();
+        return y;
     }
 
     /**
@@ -42,8 +44,9 @@ public double getY() {
      * @return расстояние от текущей точки до переданной
      */
     public double getLength(Point point) {
-        // TODO: реализовать
-        throw new AssertionError();
+        double distX = Math.pow(x-point.x,2);
+        double distY = Math.pow(y-point.y,2);
+        return Math.sqrt(distY + distX);
     }
 
 }

task05/src/com/example/task05/PolygonalLine.java

@@ -1,17 +1,22 @@
 package com.example.task05;
 
+import java.util.ArrayList;
+
 /**
  * Ломаная линия
  */
 public class PolygonalLine {
+    private ArrayList<Point> line = new ArrayList<Point>();
 
     /**
      * Устанавливает точки ломаной линии
      *
      * @param points массив точек, которыми нужно проинициализировать ломаную линию
      */
     public void setPoints(Point[] points) {
-        // TODO: реализовать
+        for (Point point : points) {
+            addPoint(point);
+        }
     }
 
     /**
@@ -20,7 +25,7 @@ public void setPoints(Point[] points) {
      * @param point точка, которую нужно добавить к ломаной
      */
     public void addPoint(Point point) {
-        // TODO: реализовать
+        line.add(new Point(point.getX(), point.getY()));
     }
 
     /**
@@ -30,7 +35,7 @@ public void addPoint(Point point) {
      * @param y координата по оси ординат
      */
     public void addPoint(double x, double y) {
-        // TODO: реализовать
+        line.add(new Point(x,y));
     }
 
     /**
@@ -39,8 +44,13 @@ public void addPoint(double x, double y) {
      * @return длину ломаной линии
      */
     public double getLength() {
-        // TODO: реализовать
-        throw new AssertionError();
+        double lengthOfLine = 0;
+        for (int i = 0; i < line.size() - 1; i++) {
+            Point first = line.get(i);
+            Point second = line.get(i+1);
+            lengthOfLine += first.getLength(second);
+        }
+        return lengthOfLine;
     }
 
 }