Васильева Мария ПрИ-201. Модуль 4

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

@@ -7,8 +7,35 @@ public class Point {
     int x;
     int y;
 
+    public Point(int x, int y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public Point() {
+        x = 0;
+        y = 0;
+    }
+
+    void flip(){
+        int temp = x;
+        x = -y;
+        y = -temp;
+    }
+    double distance(Point point){
+        double dX = Math.pow(x-point.x,2);
+        double dY = Math.pow(y-point.y,2);
+        return Math.sqrt(dX + dY);
+
+    }
+
+    public String toString(){
+        return String.format("(%d, %d)", x, y);
+    }
+
+
     void print() {
-        String pointToString = String.format("(%d, %d)", x, y);
+        String pointToString = toString();
         System.out.println(pointToString);
     }
 }

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

@@ -2,6 +2,12 @@
 
 public class Task02Main {
     public static void main(String[] args) {
+        TimeSpan time1 = new TimeSpan(3,34,57);
+        TimeSpan time2 = new TimeSpan(0,30,15);
+        time1.add(time2);
+        System.out.println(time1.toString());
+        time1.setSeconds(90);
+        System.out.println(time1.toString());
 
     }
 }

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

@@ -0,0 +1,73 @@
+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;
+        normalizeTime();
+    }
+
+    private void normalizeTime() {
+        int totalSeconds = hours * 3600 + minutes * 60 + seconds;
+        this.hours = totalSeconds / 3600;
+        this.minutes = (totalSeconds % 3600) / 60;
+        this.seconds = (totalSeconds % 3600) % 60;
+    }
+
+    public int getHours() {
+        return hours;
+    }
+
+    public int getMinutes() {
+        return minutes;
+
+    }
+
+    public int getSeconds() {
+        return seconds;
+    }
+
+    public void setHours(int hours) {
+        this.hours = hours;
+        normalizeTime();
+
+    }
+
+    public void setMinutes(int minutes) {
+        this.minutes = minutes;
+        normalizeTime();
+
+    }
+
+    public void setSeconds(int seconds) {
+        this.seconds = seconds;
+        normalizeTime();
+
+    }
+
+    void add(TimeSpan time) {
+        this.hours += time.hours;
+        this.minutes += time.minutes;
+        this.seconds += time.seconds;
+        normalizeTime();
+
+    }
+
+    void subtract(TimeSpan time) {
+        this.hours -= time.hours;
+        this.minutes -= time.minutes;
+        this.seconds -= time.seconds;
+        normalizeTime();
+
+    }
+
+    public String toString() {
+        return hours + ":" + minutes + ":" + seconds;
+    }
+
+}

task03/src/com/example/task03/ComplexNumber.java

@@ -0,0 +1,40 @@
+package com.example.task03;
+
+public class ComplexNumber {
+     private final double realPart;
+     private final double imaginaryPart;
+
+     public ComplexNumber(double realPart, double imaginaryPart){
+         this.realPart = realPart;
+         this.imaginaryPart = imaginaryPart;
+     }
+
+    public double getRealPart() {
+        return realPart;
+    }
+
+    public double getImaginaryPart() {
+        return imaginaryPart;
+    }
+
+    public ComplexNumber add(ComplexNumber complexNumber){
+         double newReal = this.realPart + complexNumber.realPart;
+         double newImaginary = this.imaginaryPart + complexNumber.imaginaryPart;
+         return new ComplexNumber(newReal, newImaginary);
+    }
+
+    public ComplexNumber multiply(ComplexNumber complexNumber) {
+         double newReal = this.realPart * complexNumber.realPart - this.imaginaryPart * complexNumber.imaginaryPart;
+         double newImaginary = this.realPart * complexNumber.imaginaryPart + this.imaginaryPart * complexNumber.realPart;
+         return new ComplexNumber(newReal, newImaginary);
+    }
+
+    @Override
+    public String toString() {
+        if (imaginaryPart >= 0) {
+            return realPart + "+" + imaginaryPart + "i";
+        }
+        return realPart + "-" + (-imaginaryPart) + "i";
+    }
+
+}

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

@@ -2,6 +2,12 @@
 
 public class Task03Main {
     public static void main(String[] args) {
+        ComplexNumber c1 = new ComplexNumber(2, 3);
+        ComplexNumber c2 = new ComplexNumber(1, -1);
+        System.out.println(c1);
+        System.out.println(c2);
+        System.out.println(c1.add(c2));
+        System.out.println(c1.multiply(c1));
 
     }
 }

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

@@ -0,0 +1,29 @@
+package com.example.task04;
+
+public class Line {
+    private final Point p1;
+    private final 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(" from (%d, %d) to (%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;
+
+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 dX = Math.pow(x - point.x, 2);
+        double dY = Math.pow(y - point.y, 2);
+        return Math.sqrt(dX + dY);
+
+    }
+
+    public String toString() {
+        return String.format("(%d, %d)", x, y);
+    }
+
+
+    void print() {
+        String pointToString = toString();
+        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(2,5);
+        Point p2 = new Point(3,9);
+        Line  l = new Line(p1,p2);
+        System.out.println(l);
+        System.out.println(l.isCollinearLine(new  Point(-4,3)));
 
     }
 }

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

@@ -4,6 +4,8 @@
  * Точка в двумерном пространстве
  */
 public class Point {
+    final double x;
+    final double y;
 
     /**
      * Конструктор, инициализирующий координаты точки
@@ -12,7 +14,9 @@ public class Point {
      * @param y координата по оси ординат
      */
     public Point(double x, double y) {
-        throw new AssertionError();
+        this.x = x;
+        this.y = y;
+
     }
 
     /**
@@ -21,8 +25,7 @@ public Point(double x, double y) {
      * @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 newX = Math.pow(x - point.x, 2);
+        double newY = Math.pow(y - point.y, 2);
+        return Math.sqrt(newX + newY);
     }
 
 }

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 length = 0;
+        for (int i = 0; i < line.size() - 1; i++) {
+            Point p1 = line.get(i);
+            Point p2 = line.get(i + 1);
+            length += p1.getLength(p2);
+        }
+        return length;
     }
 
 }

task05/src/com/example/task05/Task05Main.java

@@ -2,6 +2,12 @@
 
 public class Task05Main {
     public static void main(String[] args) {
+        Point p1 = new Point(2, 4);
+        Point p2 = new Point(5, 1);
+        Point p3 = new Point(1, 3);
+        PolygonalLine polygonalLine = new PolygonalLine();
+        polygonalLine.setPoints(new  Point[]{p1, p2, p3});
+        System.out.println(polygonalLine.getLength());
 
     }
 }