Most Commonly asked Java8 Stream based Interview Question — Part 1

Hello there, I hope everyone is doing well.

This article will help you to get some idea about how Stream based interview questions will be asked.

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I will be sharing here some common questions asked along with its answers. In most of the questions, you will be asked to create a List of Custom Object.

Example
Employee Class with Employee Object having data about Employee like emp_id, salary, name, Date_of_Joining, Designation.
Student Class with student Object having data about Student like student_id, name, class, Stream, Date_of_birth.

The Questions will be then based on this List of Objects.

Implementation Example

Here I am creating an Employee class.

public class EmployeeObject {
    int emp_id;
    String emp_name;
    int emp_age;
    String emp_gender;
    String emp_dep;
    int year_of_joining;
    double emp_salary;

    
    public EmployeeObject(int emp_id, String name, int age, String gender, String department, int year_of_joining,
    double salary) {
        this.emp_id = emp_id;
        this.emp_name = name;
        this.emp_age = age;
        this.emp_gender = gender;
        emp_dep = department…