Completed Java Basics Lab

ArrayTasks.java

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+public class ArrayTasks {
+
+    // Difference between largest and smallest
+    public static int getDifference(int[] arr) {
+
+        int max = arr[0];
+        int min = arr[0];
+
+        for (int i = 0; i < arr.length; i++) {
+
+            if (arr[i] > max) {
+                max = arr[i];
+            }
+
+            if (arr[i] < min) {
+                min = arr[i];
+            }
+        }
+
+        return max - min;
+    }
+
+    //  Smallest and second smallest
+    public static void findSmallestAndSecond(int[] arr) {
+
+        int smallest = Integer.MAX_VALUE;
+        int secondSmallest = Integer.MAX_VALUE;
+
+        for (int i = 0; i < arr.length; i++) {
+
+            if (arr[i] < smallest) {
+                secondSmallest = smallest;
+                smallest = arr[i];
+            }
+            else if (arr[i] < secondSmallest && arr[i] != smallest) {
+                secondSmallest = arr[i];
+            }
+        }
+
+        System.out.println("Smallest: " + smallest);
+        System.out.println("Second Smallest: " + secondSmallest);
+    }
+
+    public static void main(String[] args) {
+
+        int[] numbers = {5, 2, 9, 1, 7};
+
+        // Task 1
+        int result = getDifference(numbers);
+        System.out.println("Difference: " + result);
+
+        // Task 2
+        findSmallestAndSecond(numbers);
+    }
+}

interns.java

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+public class Interns {
+
+    public static void main(String[] args) {
+
+        Intern[] interns = new Intern[10];
+
+        for (int i = 0; i < interns.length; i++) {
+
+            double salary = 15000 + (i * 3000);
+
+            interns[i] = new Intern(
+                    "Intern" + i,
+                    i,
+                    salary,
+                    "Department" + i
+            );
+        }
+
+        for (Intern intern : interns) {
+            intern.displayEmployee();
+        }
+    }
+}

src/main/java/ArrayTasks.java

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+public class ArrayTasks {
+
+    // Difference between largest and smallest
+    public static int getDifference(int[] arr) {
+
+        int max = arr[0];
+        int min = arr[0];
+
+        for (int i = 0; i < arr.length; i++) {
+
+            if (arr[i] > max) {
+                max = arr[i];
+            }
+
+            if (arr[i] < min) {
+                min = arr[i];
+            }
+        }
+
+        return max - min;
+    }
+
+    //  Smallest and second smallest
+    public static void findSmallestAndSecond(int[] arr) {
+
+        int smallest = Integer.MAX_VALUE;
+        int secondSmallest = Integer.MAX_VALUE;
+
+        for (int i = 0; i < arr.length; i++) {
+
+            if (arr[i] < smallest) {
+                secondSmallest = smallest;
+                smallest = arr[i];
+            }
+            else if (arr[i] < secondSmallest && arr[i] != smallest) {
+                secondSmallest = arr[i];
+            }
+        }
+
+        System.out.println("Smallest: " + smallest);
+        System.out.println("Second Smallest: " + secondSmallest);
+    }
+
+    public static void main(String[] args) {
+
+        int[] numbers = {5, 2, 9, 1, 7};
+
+        // Task 1
+        int result = getDifference(numbers);
+        System.out.println("Difference: " + result);
+
+        // Task 2
+        findSmallestAndSecond(numbers);
+    }
+}

src/main/java/Employee.java

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+public class Employee {
+
+    private String name;
+    private int id;
+    private double salary;
+    private String department;
+
+    //  Constructor
+    public Employee(String name, int id, double salary, String department) {
+        this.name = name;
+        this.id = id;
+        this.salary = salary;
+        this.department = department;
+    }
+
+    //  Getters
+    public String getName() {
+        return name;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public double getSalary() {
+        return salary;
+    }
+
+    public String getDepartment() {
+        return department;
+    }
+
+    //Setters
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public void setSalary(double salary) {
+        this.salary = salary;
+    }
+
+    public void setDepartment(String department) {
+        this.department = department;
+    }
+
+    //Optional: display method
+    public void displayEmployee() {
+        System.out.println("Name: " + name);
+        System.out.println("ID: " + id);
+        System.out.println("Salary: " + salary);
+        System.out.println("Department: " + department);
+        System.out.println("----------------------");
+    }
+
+    public static void main(String[] args) {
+        Employee emp1 = new Employee("John", 1, 50000, "IT");
+
+        emp1.displayEmployee();
+    }
+}

src/main/java/Employees.java

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+public class Employees {
+
+    public static void main(String[] args) {
+        // Array of 10 Employees
+        Employee[] employees = new Employee[10];
+
+        // Array Fill
+        for (int i = 0; i < 10; i++) {
+            employees[i] = new Employee(
+                    "Employee" + i,
+                    i,
+                    30000 + i * 1000,
+                    "Department" + i
+            );
+        }
+
+        // Print all employees
+        for (int i = 0; i < employees.length; i++) {
+            employees[i].displayEmployee();
+        }
+    }
+}

src/main/java/Intern.java

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+public class Intern extends Employee {
+
+    private static final double MAX_SALARY = 20000;
+
+    public Intern(String name, int id, double salary, String department) {
+        super(name, id, salary, department);
+
+        if (salary > MAX_SALARY) {
+            System.out.println("Salary cannot exceed 20000. Setting to max.");
+            super.setSalary(MAX_SALARY);
+        }
+    }
+
+    @Override
+    public void setSalary(double salary) {
+        if (salary > MAX_SALARY) {
+            System.out.println("Salary cannot exceed 20000");
+        } else {
+            super.setSalary(salary);
+        }
+    }
+}

src/main/java/interns.java

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+public class Interns {
+
+    public static void main(String[] args) {
+
+        Intern[] interns = new Intern[10];
+
+        for (int i = 0; i < interns.length; i++) {
+
+            double salary = 15000 + (i * 3000);
+
+            interns[i] = new Intern(
+                    "Intern" + i,
+                    i,
+                    salary,
+                    "Department" + i
+            );
+        }
+
+        for (Intern intern : interns) {
+            intern.displayEmployee();
+        }
+    }
+}