Merge branch 'feature/student' into feature/even-only-merge-sort

2026-08-28 12:12:17 +04:00
parent da8a42d895 daa6583470
commit 633694d875
3 changed files with 267 additions and 0 deletions
@@ -0,0 +1,96 @@
+package ru.project.student;
+
+import java.util.Objects;
+
+public class Student {
+
+    public static final double MIN_AVERAGE_GRADE = 0.0;
+    public static final double MAX_AVERAGE_GRADE = 5.0;
+    public static final int MIN_RECORD_BOOK_NUMBER = 1;
+    public static final String GROUP_NUMBER_PATTERN = "^[A-Z][0-9]{2}$";
+
+    private final String groupNumber;
+    private final double averageGrade;
+    private final int recordBookNumber;
+
+    public Student(String groupNumber, double averageGrade, int recordBookNumber) {
+        if (groupNumber == null || !groupNumber.matches(GROUP_NUMBER_PATTERN)) {
+            throw new IllegalArgumentException(
+                    "Group number must match pattern: " + GROUP_NUMBER_PATTERN);
+        }
+        if (averageGrade < MIN_AVERAGE_GRADE || averageGrade > MAX_AVERAGE_GRADE) {
+            throw new IllegalArgumentException(
+                    "Average grade must be between " + MIN_AVERAGE_GRADE + " and " + MAX_AVERAGE_GRADE);
+        }
+        if (recordBookNumber < MIN_RECORD_BOOK_NUMBER) {
+            throw new IllegalArgumentException(
+                    "Record book number must be at least " + MIN_RECORD_BOOK_NUMBER);
+        }
+        this.groupNumber = groupNumber;
+        this.averageGrade = averageGrade;
+        this.recordBookNumber = recordBookNumber;
+    }
+
+    public String getGroupNumber() {
+        return groupNumber;
+    }
+
+    public double getAverageGrade() {
+        return averageGrade;
+    }
+
+    public int getRecordBookNumber() {
+        return recordBookNumber;
+    }
+
+    public Student withGroupNumber(String groupNumber) {
+        return new Student(groupNumber, this.averageGrade, this.recordBookNumber);
+    }
+
+    public Student withAverageGrade(double averageGrade) {
+        return new Student(this.groupNumber, averageGrade, this.recordBookNumber);
+    }
+
+    public Student withRecordBookNumber(int recordBookNumber) {
+        return new Student(this.groupNumber, this.averageGrade, recordBookNumber);
+    }
+
+    public static double getMaxAverageGrade() {
+        return MAX_AVERAGE_GRADE;
+    }
+
+    public static int getMinRecordBookNumber() {
+        return MIN_RECORD_BOOK_NUMBER;
+    }
+
+    public static String getGroupNumberPattern() {
+        return GROUP_NUMBER_PATTERN;
+    }
+
+    public String toString() {
+        return "Student{" +
+                "groupNumber='" + groupNumber + '\'' +
+                ", averageGrade=" + averageGrade +
+                ", recordBookNumber=" + recordBookNumber +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        Student student = (Student) obj;
+        return Double.compare(averageGrade, student.averageGrade) == 0
+                && recordBookNumber == student.recordBookNumber
+                && Objects.equals(groupNumber, student.groupNumber);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(groupNumber, averageGrade, recordBookNumber);
+    }
+}
@@ -0,0 +1,26 @@
+package ru.project.student;
+
+public class StudentBuilder {
+    private String groupNumber;
+    private double averageGrade;
+    private int recordBookNumber;
+
+    public StudentBuilder setGroupNumber(String groupNumber) {
+        this.groupNumber = groupNumber;
+        return this;
+    }
+
+    public StudentBuilder setAverageGrade(double averageGrade) {
+        this.averageGrade = averageGrade;
+        return this;
+    }
+
+    public StudentBuilder setRecordBookNumber(int recordBookNumber) {
+        this.recordBookNumber = recordBookNumber;
+        return this;
+    }
+
+    public Student build() {
+        return new Student(groupNumber, averageGrade, recordBookNumber);
+    }
+}