{
  "firstName" : "Vibha",
  "lastName" : "Singh",
  "age" : 30,
  "salary" : 75000.0,
  "designation" : "Manager",
  "contactNumber" : "+919999988822",
  "emailId" : "abc@test.com"
  
  "firstName" : "Neha",
  "lastName" : "Verma",
  "age" : 25,
  "salary" : 60000.0,
  "designation" : "Lead",
  "contactNumber" : "+914442266221",
  "emailId" : "xyz@test.com"
  
  "firstName" : "Rajesh",
  "lastName" : "Gupta",
  "age" : 20,
  "salary" : 40000.0,
  "designation" : "Intern",
  "contactNumber" : "+919933384422",
  "emailId" : "pqr@test.com"
}

public class Employee {

	// private variables or data members of POJO class
	private String firstName;
	private String lastName;
	private int age;
	private double salary;
	private String designation;
	private String contactNumber;
	private String emailId;

	// Getter and setter methods
	public String getFirstName() {
		return firstName;
	}

	public void setFirstName(String firstName) {
		this.firstName = firstName;
	}

	public String getLastName() {
		return lastName;
	}

	public void setLastName(String lastName) {
		this.lastName = lastName;
	}

	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;
	}

	public String getDesignation() {
		return designation;
	}

	public void setDesignation(String designation) {
		this.designation = designation;
	}

	public String getContactNumber() {
		return contactNumber;
	}

	public void setContactNumber(String contactNumber) {
		this.contactNumber = contactNumber;
	}

	public String getEmailId() {
		return emailId;
	}

	public void setEmailId(String emailId) {
		this.emailId = emailId;
	}

}

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.13.0</version>
</dependency>

public class EmployeeArrayTest {

	@Test
	public void createEmployeeArray() {

		Employee emp1 = new Employee();
		emp1.setFirstName("Vibha");
		emp1.setLastName("Singh");
		emp1.setAge(30);
		emp1.setSalary(75000);
		emp1.setDesignation("Manager");
		emp1.setContactNumber("+919999988822");
		emp1.setEmailId("abc@test.com");

		Employee emp2 = new Employee();
		emp2.setFirstName("Neha");
		emp2.setLastName("Verms");
		emp2.setAge(35);
		emp2.setSalary(60000);
		emp2.setDesignation("Lead");
		emp2.setContactNumber("+914442266221");
		emp2.setEmailId("xyz@test.com");

		Employee emp3 = new Employee();
		emp3.setFirstName("Rajesh");
		emp3.setLastName("Gupta");
		emp3.setAge(20);
		emp3.setSalary(40000);
		emp3.setDesignation("Intern");
		emp3.setContactNumber("+919933384422");
		emp3.setEmailId("pqr@test.com");

		// Creating a List of Employees
		List<Employee> employeeList = new ArrayList<Employee>();
		employeeList.add(emp1);
		employeeList.add(emp2);
		employeeList.add(emp3);

		// Converting a Java class object to a JSON Array Payload as string
		ObjectMapper mapper = new ObjectMapper();
		try {
			String allEmployeeJson = mapper.writeValueAsString(employeeList);
			String employeeListPrettyJson = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(employeeList);
			System.out.println(allEmployeeJson);
			System.out.println(employeeListPrettyJson);
		} catch (JsonProcessingException e) {
			e.printStackTrace();
		}
	}

import com.fasterxml.jackson.databind.ObjectMapper;

    @Test
	public void getEmployeeArray() {

		Employee emp1 = new Employee();
		emp1.setFirstName("Vibha");
		emp1.setLastName("Singh");
		emp1.setAge(30);
		emp1.setSalary(75000);
		emp1.setDesignation("Manager");
		emp1.setContactNumber("+919999988822");
		emp1.setEmailId("abc@test.com");

		Employee emp2 = new Employee();
		emp2.setFirstName("Neha");
		emp2.setLastName("Verms");
		emp2.setAge(35);
		emp2.setSalary(60000);
		emp2.setDesignation("Lead");
		emp2.setContactNumber("+914442266221");
		emp2.setEmailId("xyz@test.com");

		Employee emp3 = new Employee();
		emp3.setFirstName("Rajesh");
		emp3.setLastName("Gupta");
		emp3.setAge(20);
		emp3.setSalary(40000);
		emp3.setDesignation("Intern");
		emp3.setContactNumber("+919933384422");
		emp3.setEmailId("pqr@test.com");

		// Creating a List of Employees
		List<Employee> employeeList = new ArrayList<Employee>();
		employeeList.add(emp1);
		employeeList.add(emp2);
		employeeList.add(emp3);

		// Converting a Java class object to a JSON Array Payload as string

		ObjectMapper mapper = new ObjectMapper();
		String allEmployeeJson = null;

		try {
			allEmployeeJson = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(employeeList);
		} catch (JsonProcessingException e) {
			e.printStackTrace();
		}

		List<Employee> allEmployeeDetails = null;
		try {
			allEmployeeDetails = mapper.readValue(allEmployeeJson, new TypeReference<List<Employee>>() {
			});
		} catch (JsonMappingException e) {
			e.printStackTrace();
		} catch (JsonProcessingException e) {
			e.printStackTrace();
		}

		for (Employee emp : allEmployeeDetails) {

			System.out.println("===================================");

			System.out.println("First Name of employee : " + emp.getFirstName());
			System.out.println("Last Name of employee : " + emp.getLastName());
			System.out.println("Age of employee : " + emp.getAge());
			System.out.println("Salary of employee : " + emp.getSalary());
			System.out.println("Designation of employee : " + emp.getDesignation());
			System.out.println("Contact Number of employee : " + emp.getContactNumber());
			System.out.println("EmailId of employee : " + emp.getEmailId());
		}
	}

  @Test
	public void readArrayJsonFromFile() throws IOException {

		ObjectMapper mapper = new ObjectMapper();

		// Converting Employee json string to Employee class object
		List<Employee> allEmployeeDetails = null;
		try {
			allEmployeeDetails = mapper.readValue(new File(
					"C:\\Users\\Vibha\\Desktop\\EmployeeList.json"),
					new TypeReference<List<Employee>>() {
					});
		} catch (StreamReadException e) {
			e.printStackTrace();
		} catch (DatabindException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}


		for (Employee emp : allEmployeeDetails) {

			System.out.println("######################################");

			System.out.println("First Name of employee : " + emp.getFirstName());
			System.out.println("Last Name of employee : " + emp.getLastName());
			System.out.println("Age of employee : " + emp.getAge());
			System.out.println("Salary of employee : " + emp.getSalary());
			System.out.println("Designation of employee : " + emp.getDesignation());
			System.out.println("Contact Number of employee : " + emp.getContactNumber());
			System.out.println("EmailId of employee : " + emp.getEmailId());
		}
	}