JAVA 8: Zero To Hero with Lambdas & Streams

Name: JAVA 8: Zero To Hero with Lambdas & Streams
Rating: 3.7 (14 reviews)

Coding Java 8 will teach you about Lambdas, Streams, new Date APIs, Optionals, and parallel programming.

Created byChandan Kumar

Last updated 2/2025

English

English [Auto],

What you'll learn

The entirety of the new features in Java 8 with examples
Interfaces with default and static methods, functional interfaces, and lambda expressions
Method references, function references, the Date & Time API, and streams API, among others.
Java 18 SimpleWebServer feature and uses
How to use Java Script from Java 8

Course content

8 sections • 28 lectures • 2h 26m total length

Filter Collection by using Stream7:55
Print Collection using For-Each method4:04
Explore printing data from collections, including employee objects, using traditional for and while loops, the for-each approach, and Java 8 streams with list.forEach.
How to Use Like Operator in Java 85:18
Learn to apply the like operator in Java 8 using streams and filter to match employee names by starts with, ends with, or contains patterns.
Collection Sorting in java 810:11
Use of Limit method3:11
Use of findFirst in lambda expression2:45
Learn to extract the first matching employee from a list by streaming the array, applying a predicate filter, using findFirst, and retrieving the object with get to print its data.
Use of mapToDouble & Sum in Lambda expression4:10
Use of Count in Lamdba2:07
Use of Min & Max in Lambda5:58
Use of GroupBy method8:17
Master group by with Java streams and collectors, counting employees by city and summing salaries per group to reveal payroll by state.

File Reading line by line3:05
File Reading using Stream API1:02
Learn to read data from files with java 8 stream API using files.lines, print results, and use parallel streams to handle large numbers of files efficiently.
File Reading in String type1:20
Read all bytes from a file path into a string, print the resulting content, and prepare the data for processing or sending to another method.
Read CSV file4:59
Learn to read csv files with java 8 by creating a csv, saving as myfile.csv, reading with Files.lines, splitting lines on comma, and collecting to a list of string arrays.
Write data to file3:40
Write data to file another way1:25

Date API- LocalDate7:57
Explore the Java 8 date API with local date, printing current and specific dates, formatting, time zones via zone id, and simple date arithmetic like adding days.
Date API- LocalTime5:43
Explore local time in Java 8 with LocalTime, creating times with now and of, reading hours, minutes, seconds, and nanoseconds, and using zone-aware methods for a specific time zone.
Date API- LocalDateTime5:31
Date API- Utility methods9:17
Learn to use Java date API utility methods to create local dates, check leap years, compare dates, and perform date arithmetic with plus, minus, and until period calculations.
Date API- Date formatting9:29
Learn to format dates and times in Java 8 using the date time format, exploring patterns, basic ISO date, and date time formatters to print date, time, and milliseconds.

Default Methods in Java 8 Interface5:21
Default Methods conflict issue4:38
When two interfaces define the same default method, implementing both requires overriding that method and selecting which default to use, optionally calling super to access the chosen default.
Static method in java 8 interface2:41
Explore static methods in Java 8 interfaces and how they group related calculations without overriding. Call these methods through the interface name to preserve backward compatibility.

Requirements

Basics of Java is must
Java 1.6

Description

Hi Everyone,

In this Java 8 course, I tried to keep only practical things and mainly focused on Lambda & Stream API along with Date.

New features and improvements in Java 8. Understanding all the new features from eight versions is made easier by taking the Zero to Hero course. All of the new features will be thoroughly covered in this course, both in terms of theory and code. All of the key features, including:

Lambda Expressions,
Streams API is one of the important features that got introduced as part of Java8.
How does the Stream API Works with example
max()
min()
limit()
sort()
File Reading with all techniques
File Writing along with CSV file Reading
How Collections are different from Streams
Date & Time,
Default & Static methods,
Optional, Method References
This section covers how to perform Parallel processing using Streams.
How to check the performance between the sequential and parallel programming
Functional Interfaces have received special consideration and explanation. Each feature will be covered during the course discussion with a conceptual explanation first, followed by a thorough code walkthrough and execution. Since the course is set up so that omitting a known feature won't affect other parts or lectures, you are free to skip any features that you are already familiar with.
JavaScript Calling from Java 8
Java 18 feature: Embedded WebServer and how to use it.
Learn new features as well.

Who this course is for:

This course for someone who is already working on Java and wanted to learn Java 8
Any developer wants to switch to Java

JAVA 8: Zero To Hero with Lambdas & Streams

What you'll learn

Explore related topics

Course content

Java 8 Stream API10 lectures • 54min

Sequential and Parallel Stream1 lecture • 5min

File Reading & Writing6 lectures • 16min

Java 8: Date API5 lectures • 38min

Default & Static Method3 lectures • 13min

Optional Type with Example1 lecture • 10min

Java 8: Calling JavaScript Function1 lecture • 5min

Java 18 : important feature1 lecture • 7min

Requirements

Description

Who this course is for: