What is toString() method?

getClass().getName() + '@' + Integer.toHexString(hashCode())

package org.javatutorials.StringBased;

public class Employee {
	
	private String firstName;
	
	private String lastName;
	
	private int age;
	

	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 static void main(String[] args) {
		Employee emp = new Employee();
		emp.setFirstName("Kelly");
		emp.setLastName("Scott");
		emp.setAge(40);
		
		System.out.println(emp);
	}

}