Homework4

Vtekuri · Nov 28, 2017 · 114d977 · 114d977
1 parent 440dfb9
commit 114d977
Show file tree

Hide file tree

Showing 7 changed files with 403 additions and 0 deletions.
diff --git a/Homework4/.gitignore b/Homework4/.gitignore
@@ -0,0 +1,3 @@
+Homework4.iml
+.idea/
+out/
diff --git a/Homework4/src/com/gmail/gnoianko/Group.java b/Homework4/src/com/gmail/gnoianko/Group.java
@@ -0,0 +1,212 @@
+package com.gmail.gnoianko;
+
+import java.util.Arrays;
+import java.util.Scanner;
+
+public class Group implements Voenkom {
+    private int id;
+    private Student student[] = new Student[10];
+
+    public Group() {
+    }
+
+
+    public void addStudent(Student student) throws MyException {
+        if (student != null) {
+            int i = 0;
+            while (this.student[i] != null) {
+                i++;
+                if (i == 10)
+                    throw new MyException();
+            }
+            this.student[i] = student;
+        } else {
+            System.out.println("student is null");
+        }
+
+    }
+
+    public void addStudentInteractive() throws MyException {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Enter name");
+        String name = scanner.nextLine();
+
+        System.out.println("Enter age (15-45)");
+        int age = scanner.nextInt();
+
+        System.out.println("Enter weight (20-199)");
+        int weight = scanner.nextInt();
+
+        System.out.println("Enter height(120 - 256)");
+        int height = scanner.nextInt();
+
+        System.out.println("Enter sex (true or false)");
+        boolean sex = scanner.nextBoolean();
+
+        System.out.println("Enter course (1-7)");
+        int course = scanner.nextInt();
+
+        System.out.println("Enter Score (2.0 - 5.0)");
+        double score = scanner.nextDouble();
+
+        if (!check(name, age, weight, height, course, score))
+            return;
+
+        try {
+            this.addStudent(new Student(name, age, height, weight, sex, course, score));
+        } catch (MyException e) {
+            throw new MyException();
+        }
+
+    }
+
+    private static boolean check(String name, int age, int weight, int height, int course, double score) {
+        if (name == null || name.length() < 3)
+            return false;
+        if (age < 15 || age > 45)
+            return false;
+        if (weight < 20 || weight > 199)
+            return false;
+        if (height < 120 || height > 256)
+            return false;
+        if (score > 5 || score < 2)
+            return false;
+        if (course < 1 || course > 7)
+            return false;
+        return true;
+
+    }
+
+
+    public void deleteStudent(int i) {
+        if (this.student[i - 1] != null && i >= 0 && i < 10) {
+            this.student[i - 1] = null;
+        } else
+            System.out.println("Error. Student does not exist or index not supported ");
+    }
+
+    public Student findStudent(String name) {
+        if (name != null) {
+            for (int i = 0; i < 10; i++) {
+                if (this.student[i] == null) {
+
+                } else {
+                    if (this.student[i].getName().equalsIgnoreCase(name))
+                        return this.student[i];
+                }
+            }
+        }
+        return null;
+    }
+
+    private void sort() {
+        for (int i = this.student.length - 1; i > 0; i--) {
+            for (int j = 0; j < i; j++) {
+                if (
+                        this.student[j] != null &&
+                                this.student[j + 1] != null &&
+                                this.student[j].getName().compareTo(this.student[j + 1].getName()) > 0
+                        ) {
+                    Student tmp = this.student[j];
+                    this.student[j] = this.student[j + 1];
+                    this.student[j + 1] = tmp;
+
+                }
+
+            }
+        }
+    }
+
+    public void newSort(int i) {
+        this.nullToEnd();
+        switch (i) {
+            case 1:
+                Arrays.sort(student, (one, two) -> {
+                    if (one != null && two != null)
+                        return one.getName().compareTo(two.getName());
+                    else
+                        return 0;
+                });
+                break;
+            case 2:
+                Arrays.sort(student, (one, two) -> {
+                    if (one != null && two != null)
+                        return one.getAge() - two.getAge();
+                    else
+                        return 0;
+                });
+                break;
+            case 3:
+                Arrays.sort(student, (one, two) -> {
+                    if (one != null && two != null)
+                        return one.getWeight() - two.getWeight();
+                    else
+                        return 0;
+                });
+                break;
+            case 4:
+                Arrays.sort(student, (one, two) -> {
+                    if (one != null && two != null)
+                        return one.getHeight() - two.getHeight();
+                    else
+                        return 0;
+                });
+                break;
+            case 5:
+                Arrays.sort(student, (one, two) -> {
+                    if (one != null && two != null)
+                        return one.getCourse() - two.getCourse();
+                    else
+                        return 0;
+                });
+                break;
+            case 6:
+                Arrays.sort(student, (one, two) -> {
+                    if (one != null && two != null)
+                        return (int) (one.getAvgScore() * 10000 - two.getAvgScore() * 10000);
+                    else
+                        return 0;
+                });
+                break;
+        }
+
+
+    }
+
+    private void nullToEnd() {
+        for (int i = student.length - 1; i > 0; i--) {
+            for (int j = 0; j < i; j++) {
+                if (student[j] == null && student[j + 1] == null) {
+                }
+                if (student[j] == null && student[j + 1] != null) {
+                    student[j] = student[j + 1];
+                }
+
+            }
+
+        }
+    }
+
+    @Override
+    public Student[] getStudentAdult() {
+        Student adultStudent[] = new Student[10];
+        int j = 0;
+        for (int i = 0; i < student.length; i++) {
+            if (student[i] != null && student[i].getAge() >= 18) {
+                student[j] = student[i];
+                j++;
+
+            }
+
+        }
+        return adultStudent;
+    }
+
+    @Override
+    public String toString() {
+        return "Group{" +
+                Arrays.toString(student) +
+                '}';
+    }
+}
diff --git a/Homework4/src/com/gmail/gnoianko/Human.java b/Homework4/src/com/gmail/gnoianko/Human.java
@@ -0,0 +1,67 @@
+package com.gmail.gnoianko;
+
+public class Human {
+    protected String name;
+    protected int age;
+    protected int weight;
+    protected int height;
+    protected boolean sex;
+
+    public Human(String name, int age, int weight, int height, boolean sex) {
+        this.name = name;
+        this.age = age;
+        this.weight = weight;
+        this.height = height;
+        this.sex = sex;
+    }
+
+    public Human() {
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public int getWeight() {
+        return weight;
+    }
+
+    public void setWeight(int weight) {
+        this.weight = weight;
+    }
+
+    public int getHeight() {
+        return height;
+    }
+
+    public void setHeight(int height) {
+        this.height = height;
+    }
+
+    public boolean isSex() {
+        return sex;
+    }
+
+    public void setSex(boolean sex) {
+        this.sex = sex;
+    }
+
+    @Override
+    public String toString() {
+        return " " +
+                "name='" + name + '\'' +
+                ", sex=" + sex;
+    }
+}
diff --git a/Homework4/src/com/gmail/gnoianko/Main.java b/Homework4/src/com/gmail/gnoianko/Main.java
@@ -0,0 +1,51 @@
+package com.gmail.gnoianko;
+
+public class Main {
+    public static void main(String[] args) {
+        Student students[] = new Student[12];
+        Group group = new Group();
+
+        students[0] = new Student("Artem", 25, 75, 175, true, 2, 4.8);
+        students[1] = new Student("Bohdan", 18, 80, 180, true, 2, 4.6);
+        students[2] = new Student("Roman", 37, 88, 173, true, 2, 4.3);
+        students[3] = new Student("Ivan", 27, 60, 160, true, 2, 3.8);
+        students[4] = new Student("Kolya", 24, 100, 154, true, 2, 3.6);
+        students[5] = new Student("Serj", 23, 59, 187, true, 2, 5.0);
+        students[6] = new Student("Vlad", 22, 105, 200, true, 2, 5.0);
+        students[7] = new Student("Illya", 21, 77, 198, true, 2, 4.9);
+        students[8] = new Student("Dima", 28, 78, 188, true, 2, 4.7);
+        students[9] = new Student("John", 19, 73, 179, true, 2, 3.0);
+        students[10] = new Student("Cristian", 34, 81, 168, true, 2, 3.7);
+        students[11] = new Student("Hans", 25, 68, 177, true, 2, 3.2);
+
+        try {
+            for (int i = 0; i < 8; i++) {
+                group.addStudent(students[i]);
+
+
+            }
+        } catch (MyException e) {
+            e.printStackTrace();
+        }
+        /*
+        try {
+            group.addStudentInteractive();
+        } catch (MyException e) {
+            e.printStackTrace();
+        }
+        */
+
+        System.out.println(group);
+
+        group.deleteStudent(2);
+        group.deleteStudent(5);
+
+        group.newSort(6);
+
+        System.out.println(group);
+
+        System.out.println(group.findStudent("Ivan"));
+
+
+    }
+}
diff --git a/Homework4/src/com/gmail/gnoianko/MyException.java b/Homework4/src/com/gmail/gnoianko/MyException.java
@@ -0,0 +1,8 @@
+package com.gmail.gnoianko;
+
+public class MyException extends Exception {
+    @Override
+    public String toString() {
+        return "Array is full ";
+    }
+}