Ljubomir's lab.

src/Intern.java

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+import Question3.Employee;
+
+public class Intern extends Employee {
+   public static final int MAX_SALARY = 20000;
+
+    public Intern(String fullName, String position, int salary) {
+        super(fullName, position, salary);
+        if (salary > MAX_SALARY) {
+            throw new IllegalArgumentException("Max salary for intern is " + MAX_SALARY);
+        }
+        }
+    }

src/Main.java

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+import Question3.Employee;
+
+import java.util.Arrays;
+
+public class Main {
+    public static void main(String[] args) {
+        Employee emp1 = new Employee("Mark", "Manager", 3000);
+
+        emp1.displayInfo();
+        emp1.giveRaise(10);
+        System.out.println("-----");
+        System.out.println(emp1 + " After raise: ");
+        emp1.displayInfo();
+        emp1.promote("Senior Manager");
+        emp1.setSalary(5000);
+        System.out.println("After promote: ");
+        emp1.displayInfo();
+        System.out.println("-----");
+
+        System.out.println("Interns: ");
+        Intern int2 = new Intern(" David", "Intern", 2000);
+        int2.displayInfo();
+
+        Intern int3 = new Intern(" Tom", " Intern" , 2000);
+        int3.displayInfo();
+        System.out.println("-----");
+
+        System.out.println("Company hired next interns:");
+        Intern[] interns = new Intern[10];
+        interns[0] = new Intern("Liam" ,"Intern" , 2000);
+        interns[1] =new Intern("Pam" ,"Intern" , 2000);
+        interns[2] = new Intern("Nina" ,"Intern" , 2000);
+        interns[3] = new Intern("Alex" ,"Intern" , 2000);
+        interns[4] = new Intern("Luka" ,"Intern" , 2000);
+        interns[5] = new Intern("Manuel" ,"Intern" , 2000);
+        interns[6] = new Intern("Lara", "Intern" , 2000);
+        interns[7] = new Intern("Tony", "Intern" , 2000);
+        interns[8] = new Intern("Sara", "Intern" , 2000);
+        interns[9] = new Intern("Daniel", "Intern", 2000);
+      for (Employee compintern : interns){
+          compintern.displayInfo();
+      }
+    }
+
+
+}

src/Question1/Difference.java

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+package Question1;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+public class Difference {
+    public static void main(String[] args) {
+
+        int[] numbers = {5 , 11, 23};
+        int max = numbers[0];
+        int min = numbers[0];
+
+        for (int num : numbers) {
+            if (num > max) {
+                max = num;
+            }
+            if (num < min) {
+                min = num;
+            }
+        }
+            System.out.println("Max number is "+ max);
+            System.out.println("Min number is " + min);
+
+            int subtraction = max - min;
+        System.out.println("Difference is " + subtraction);
+
+    }
+}

src/Question2/Smallestelement.java

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+package Question2;
+
+public class Smallestelement {
+    public static void main(String[] args) {
+        int[] numbers = {66, 27, 38, 11, 50};
+        {
+            int smallnum = Integer. MAX_VALUE;
+            int secondsmallnum = Integer.MAX_VALUE;
+
+            for (int num : numbers) {
+                if (num < smallnum) {
+                    secondsmallnum=smallnum;
+                    smallnum = num;
+                }
+                if (secondsmallnum > num && num> smallnum) {
+                    secondsmallnum = num;
+                }
+            }
+            System.out.println("Smallest number is " + smallnum);
+            System.out.println("Second smallest number is " + secondsmallnum);
+
+        }
+    }
+}

src/Question3/Employee.java

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+package Question3;
+
+import javax.xml.namespace.QName;
+
+public class Employee {
+    private String fullName = "Mark";
+    private String position = "Manager";
+    private int salary = 3000;
+
+    public Employee(String fullName, String position, int salary) {
+        this.fullName = fullName;
+        this.position = position;
+        this.salary = salary;
+    }
+    public String toString(){
+        return "Full name: " + fullName +
+                " Position:" + position +
+                " Salary:" + salary;
+    }
+
+    public String getName() {
+        return fullName;
+    }
+
+    public String getPosition() {
+        return position;
+    }
+
+    public void setPosition(String position) {
+        this.position = position;
+    }
+
+    public int getSalary() {
+        return salary;
+    }
+
+    public void setSalary(int salary) {
+        if (salary > 0) {
+            this.salary = salary;
+        } else {
+            System.out.println("Salary can not be negative");
+        }
+    }
+    public void displayInfo () {
+        System.out.println("Full name: " + fullName);
+        System.out.println("Position: " + position);
+        System.out.println("Salary: " + salary);
+    }
+    public void giveRaise (int percent){
+    if (percent>0){
+        salary += salary * percent / 100;
+    }
+    }
+    public void promote (String newPosition){
+        this.position = newPosition;
+        System.out.println(fullName +" has been promoted to "+ newPosition);
+    }
+}

src/Question3/Intern.java

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+package Question3;
+
+public class Intern extends Employee {
+   public static final int MAX_SALARY = 20000;
+
+    public Intern(String fullName, String position, int salary) {
+        super(fullName, position, salary);
+        if (salary > MAX_SALARY) {
+            throw new IllegalArgumentException("Max salary for intern is " + MAX_SALARY);
+        }
+        }
+    }

src/Question3/Main.java

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+package Question3;
+
+public class Main {
+    public static void main(String[] args) {
+        Employee emp1 = new Employee("Mark Bright", " Manager", 3000);
+        System.out.println("1. Employee: ");
+        emp1.displayInfo();
+        emp1.giveRaise(10);
+        System.out.println("-----");
+        System.out.println("Mark Bright got raise.");
+        System.out.println("After raise: ");
+        emp1.displayInfo();
+        emp1.promote("Senior Manager");
+        emp1.setSalary(5000);
+        System.out.println("After promote: ");
+        emp1.displayInfo();
+        System.out.println("-----");
+
+        System.out.println("Interns: ");
+        Intern int2 = new Intern(" David Motes", "Intern", 2000);
+        int2.displayInfo();
+
+        Intern int3 = new Intern(" Tom Pacy", " Intern" , 2000);
+        int3.displayInfo();
+        System.out.println("-----");
+
+        System.out.println("Company hired next interns:");
+        Intern[] interns = new Intern[10];
+        interns[0] = new Intern("Liam Miller" ,"Intern" , 2000);
+        interns[1] =new Intern("Pam Paulson" ,"Intern" , 2000);
+        interns[2] = new Intern("Nina Dominguez" ,"Intern" , 2000);
+        interns[3] = new Intern("Alex Koreny" ,"Intern" , 2000);
+        interns[4] = new Intern("Luka Littler" ,"Intern" , 2000);
+        interns[5] = new Intern("Manuel Garcia" ,"Intern" , 2000);
+        interns[6] = new Intern("Lara Butler", "Intern" , 2000);
+        interns[7] = new Intern("Tony Park", "Intern" , 2000);
+        interns[8] = new Intern("Sara Hawknins", "Intern" , 2000);
+        interns[9] = new Intern("Daniel Clark", "Intern", 2000);
+      for (Employee compintern : interns){
+          compintern.displayInfo();
+      }
+    }
+
+
+}