Java – Construct List of Objects by Reading Details

Employee.java:

class Employee
{
            int id;
            String name;
            double salary;
            Employee(int id, String name, double salary) {
                        this.id = id;
                        this.name = name;
                        this.salary = salary;
            }
}

Main.java: Create List with 5 Employee details by reading through Scanner.

import java.util.*;
class Main
{
            public static void main(String[] args)
            {
                        List<Employee> list = new ArrayList<Employee>();
                        Scanner sc = new Scanner(System.in);

                        System.out.println(“Enter 5 Employee details : “);
                        for (int i=1 ; i<=5 ; i++)
                        {
                                    System.out.println(“Enter Emp-” + i + ” details : “);
                                    int id = sc.nextInt();
                                    String name = sc.next();
                                    double salary = sc.nextDouble();
                                    Employee e = new Employee(id, name, salary);
                                    list.add(e);
                        }

                        System.out.println(“Details are : “);
                        for(Employee e : list)
                        {
                                    System.out.println(e.id + ” , ” + e.name + ” , ” + e.salary);
                        }
            }
}

Store objects to list until user quits:

Employee.java:

Create Employee class with instance variables id, name, salary
Define parameterized constructor to initialize the object.

Main.java: Read and Add employee details until end user quits.

import java.util.*;
class Main
{
            public static void main(String[] args)
            {
                        List<Employee> list = new ArrayList<Employee>();
                        Scanner sc = new Scanner(System.in);

                        while(true)
                        {
                                    System.out.println(“Enter Emp details to add : “);
                                    int id = sc.nextInt();
                                    String name = sc.next();
                                    double salary = sc.nextDouble();
                                    Employee e = new Employee(id, name, salary);
                                    list.add(e);

                                    System.out.print(“Do you want to add another record(yes/no) : “);
                                    String choice = sc.next();
                                    if(choice.equals(“no”))
                                    {
                                                break;
                                    }
                        }

                        System.out.println(“Details are : “);
                        for(Employee e : list)
                        {
                                    System.out.println(e.id + ” , ” + e.name + ” , ” + e.salary);
                        }
            }
}

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