LabDone

Main.java

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+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}

src/Employee.java

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+public class Employee {
+    private String name;
+    private String email;
+    private int age;
+    private double salary;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public double getSalary() {
+        return salary;
+    }
+
+    public void setSalary(double salary) {
+        this.salary = salary;
+    }
+
+    @Override
+    public String toString() {
+        return "Employee{" +
+                "name='" + name + '\'' +
+                ", email='" + email + '\'' +
+                ", age=" + age +
+                ", salary=" + salary +
+                '}';
+    }
+
+    public Employee(String name, String email, int age, double salary) {
+        this.name = name;
+        this.email = email;
+        this.age = age;
+        this.salary = salary;
+
+
+    }
+}

src/Interns.java

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+public class Interns extends Employee {
+
+    public Interns(String name, String email, int age, double salary) {
+        super(name, email, age, salary);
+
+
+        if (salary >= 20000)
+            System.out.println(salary);
+        else System.out.println("invalid salary");
+
+    }
+
+}

src/Main.java

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+import org.w3c.dom.ls.LSOutput;
+
+import javax.xml.namespace.QName;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.sql.SQLOutput;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        System.out.println("Hello world!");
+
+        Employee employee1 = new Employee("Joe", "joe@mail;com", 35, 35000);
+        System.out.println(employee1.getName()+ " - " + employee1.getEmail()+ " - " + employee1.getAge() + " - " + employee1.getSalary());
+
+        System.out.println(employee1);
+        Employee employee2 = new Employee("Maria", "maria@mail;com", 45, 38000);
+        Employee employee3 = new Employee("Paul", "paul@mail;com", 55, 58000);
+        Employee employee4 = new Employee("Bob", "bob@mail;com", 42, 35050);
+        Employee employee5 = new Employee("Isa", "isa@mail;com", 29, 29000);
+        Employee employee6 = new Employee("Brahim", "brahim@mail;com", 25, 24000);
+        Employee employee7 = new Employee("Natalia", "natalia@mail;com", 31, 42000);
+        Employee employee8 = new Employee("Ionis", "ionis@mail;com", 58, 62000);
+        Employee employee9 = new Employee("Sou", "sou@mail;com", 34, 40000);
+        Employee employee10 = new Employee("Jack", "jack@mail;com", 49, 62000);
+
+        List<Employee> employeeList = new ArrayList<>();
+        employeeList.add(employee1);
+        employeeList.add(employee2);
+        employeeList.add(employee3);
+        employeeList.add(employee4);
+        employeeList.add(employee5);
+        employeeList.add(employee6);
+        employeeList.add(employee7);
+        employeeList.add(employee8);
+        employeeList.add(employee9);
+        employeeList.add(employee10);
+        System.out.println(employeeList);
+
+        FileWriter fileWriter = new FileWriter ("Employees.txt", true);
+        for (Employee employee : employeeList) {
+            fileWriter.write(employee.getName() + " - " + employee.getEmail()  + " - " +employee.getAge()  + " - " + employee.getSalary()  + "\n");
+        }
+        fileWriter.close();
+
+    }
+
+}