Task 1

src/main/java/task_1/Task1.java

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+package task_1;
+
+public class Task1 {
+    public static void main(String[] args) {
+        TimeMachine tm = new TimeMachine(2023,true);
+        TimeMachine tmTest = new TimeMachine(202,false);
+        TimeTraveler traveler1 = new TimeTraveler("Ignat", 1990, 2100);
+        TimeTraveler traveler2 = new TimeTraveler("Jesus", 0, 33);
+        TimeTraveler traveler3 = new TimeTraveler("Igor", 1500, 1504);
+
+        try {
+            tm.traveInTime(traveler1, 2000);
+        } catch (TimeTravelException e) {
+            System.out.println(e);
+        }
+
+        try {
+            tm.traveInTime(traveler2, 4000);
+        } catch (TimeTravelException e) {
+            System.out.println(e);
+        }
+
+        try {
+            tm.traveInTime(traveler3, 1300);
+        } catch (TimeTravelException e) {
+            System.out.println(e);
+        }
+
+        try {
+            tmTest.traveInTime(traveler2, 200);
+        } catch (TimeTravelException e) {
+            System.out.println(e);
+        }
+
+    }
+}

src/main/java/task_1/TimeMachine.java

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+package task_1;
+
+class TimeMachine {
+    int currentYear;
+    boolean isWorking;
+
+    TimeMachine(int currentYear, boolean isWorking) {
+        this.currentYear = currentYear;
+        this.isWorking = isWorking;
+    }
+    public void traveInTime(TimeTraveler traveler, int inYear){
+        if (!isWorking) {
+            throw new TimeTravelException("The Time Machine does not working :(");
+        } else {
+            if (traveler.birthYear > inYear) {
+                throw new TimeTravelException("This year " + traveler.name +  " has not yet been born. His year of birth is " + traveler.birthYear);
+            } else if (traveler.deathYear < inYear) {
+                throw new TimeTravelException("This year " + traveler.name +" is already dead. His year of death is " + traveler.deathYear);
+            } else {
+                System.out.println(traveler.name + " was moved from " + currentYear + " to " + inYear);
+                currentYear = inYear;
+            }
+        }
+    }
+}

src/main/java/task_1/TimeTravelException.java

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+package task_1;
+
+public class TimeTravelException extends RuntimeException {
+       public TimeTravelException(String message) {
+           super(message);
+       }
+}

src/main/java/task_1/TimeTraveler.java

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+package task_1;
+
+class TimeTraveler {
+    String name;
+    int birthYear;
+    int deathYear;
+
+    TimeTraveler(String name, int birthYear, int deathYear) {
+        this.name = name;
+        this.birthYear = birthYear;
+        this.deathYear = deathYear;
+
+    }
+}