Company_Employee [Multiple class]

Company_Employee/Answer.java

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+package Company_Employee;
+import java.util.*;
+public class Answer {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        System.out.print("Enter company name: ");
+        String cn = sc.nextLine();
+        System.out.print("Enter number of employees: ");
+        int num = sc.nextInt();sc.nextLine();
+        Employee[] emp = new Employee[num];
+        System.out.println("Enter employee details: ");
+        for (int i = 0; i < emp.length; i++) {
+            System.out.println("Employee "+(i+1)+":");
+
+            System.out.print("Enter id: ");
+            int a = sc.nextInt();sc.nextLine();
+
+            System.out.print("Enter name: ");
+            String b = sc.nextLine();
+
+            System.out.print("Enter designation: ");
+            String c = sc.nextLine();
+
+            System.out.print("Enter salary: ");
+            double d = sc.nextDouble();sc.nextLine();
+
+            emp[i] = new Employee(a,b,c,d);
+        }
+        Company com = new Company(cn,emp,num);
+
+        System.out.println("Average Salary : "+com.getAverageSalary(emp));
+        System.out.println("Max Salary : "+com.getMaxSalary(emp));
+
+        System.out.print("Enployee with Designation: ");
+        String desi = sc.nextLine();
+        Employee[] ans = com.getEmployeesByDesignation(emp,desi);
+        if(ans!=null)
+        {
+            for (int i = 0; i < ans.length; i++) {
+                System.out.println("ID: "+ans[i].getId()+", Name: "+ans[i].getName()+", Designation: "+ans[i].getDes()+", Salary: "+ans[i].getSalary());
+            }
+        }
+    }
+}
+
+class Employee
+{
+    private int id;
+    private String name;
+    private String des;
+    private double salary;
+    public Employee(int id, String name, String des, double salary) {
+        this.id = id;
+        this.name = name;
+        this.des = des;
+        this.salary = salary;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getDes() {
+        return des;
+    }
+    public void setDes(String des) {
+        this.des = des;
+    }
+    public double getSalary() {
+        return salary;
+    }
+    public void setSalary(double salary) {
+        this.salary = salary;
+    }
+}
+
+class Company
+{
+    private String comName;
+    private Employee[] emp;
+    private int numEmp;
+    public Company(String comName, Employee[] emp, int numEmp) {
+        this.comName = comName;
+        this.emp = emp;
+        this.numEmp = numEmp;
+    }
+    public double getAverageSalary(Employee[] e)
+    {
+        double sum = 0;
+        for(int i=0; i<e.length; i++)
+        {
+            sum+=e[i].getSalary();
+        }
+        if(sum>0)
+        {
+            double avg = sum/e.length;
+            return avg;
+        }
+        return 0;
+    }
+
+    public double getMaxSalary(Employee[] e)
+    {
+        double maxSal=e[0].getSalary();
+        for(int i=0; i<e.length; i++)
+        {
+            if(maxSal<e[i].getSalary())
+            {
+                maxSal = e[i].getSalary();
+            }
+        }
+        return maxSal;
+    }
+
+    public Employee[] getEmployeesByDesignation(Employee[]e,String d)
+    {
+        Employee[] emp = new Employee[0];
+        for (int i = 0; i < e.length; i++) {
+            if(e[i].getDes().equalsIgnoreCase(d))
+            {
+                emp = Arrays.copyOf(emp,emp.length+1);
+                emp[emp.length-1] = e[i];
+            }
+        }
+        if(emp.length>0)
+        {
+            return emp;
+        }
+        return null;
+    }
+}

Company_Employee/Question.txt

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+Create a class named "Employee" with the following attributes:
+
+id (int)
+name (String)
+designation (String)
+salary (double)
+
+The above attributes should be private, and the class should have a parameterized constructor to initialize them.
+
+Implement the following methods in the Employee class:
+
+getSalary(): This method should return the salary of the employee.
+getDesignation(): This method should return the designation of the employee.
+
+Create a class named "Company" with the following attributes:
+
+companyName (String)
+employees (Employee array)
+numEmployees (int)
+
+The above attributes should be private, and the class should have a parameterized constructor to initialize them.
+
+Implement the following methods in the Company class:
+
+getAverageSalary(): This method should return the average salary of all the employees in the company.
+getMaxSalary(): This method should return the highest salary of all the employees in the company.
+getEmployeesByDesignation(String designation): This method should return an array of all employees with the given designation.
+
+In the main method, use a Scanner object to read the values of the company name, number of employees, and the employee details 
+(id, name, designation, and salary) in a loop. Once all employee details have been read, create a Company object and pass the 
+appropriate parameters. Finally, call the three methods mentioned above and print the output.
+
+Note:
+
+All searches should be case-insensitive.
+You may assume that the input is valid and in the correct format.
+
+Sample input:
+---------------------
+Enter company name: ABC Company
+Enter number of employees: 3
+Enter employee details:
+Employee 1:
+Enter id: 101
+Enter name: John Smith
+Enter designation: Manager
+Enter salary: 5000
+Employee 2:
+Enter id: 102
+Enter name: Jane Doe
+Enter designation: Engineer
+Enter salary: 4000
+Employee 3:
+Enter id: 103
+Enter name: Bob Johnson
+Enter designation: Engineer
+Enter salary: 4500
+
+Sample Output:
+--------------------
+Average salary: 4500.0
+Max salary: 5000.0
+Employees with designation: Engineer
+ID: 102, Name: Jane Doe, Designation: Engineer, Salary: 4000.0
+ID: 103, Name: Bob Johnson, Designation: Engineer, Salary: 4500.0