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All quests Java Syntax Java Core Java Multithreading Java Collections JSP & Servlets
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  • Send email

    Java Collections
    Level 10, Lesson 5
    "It's me—again. And again, I have a little surprise for you." "Today I'm going to teach you how to send email using Java." "Let's start with the good news: Java has a native library for working with email." "The bad news is that this library is part of Java EE, not Java SE." "Java EE is an extended version of JavaSE, which includes classes needed for niftier applications ..."
    Available
  • Tasks | Level 10 | Lesson 6

    Java Collections
    Level 10, Lesson 6
    Available
  • Socket

    Java Collections
    Level 10, Lesson 7
    "Hi, Amigo!" "Hello, Rishi!" "The topic of today's lesson is sockets." "You already know that every computer on the network has its own unique IP address." "Yep." "Now imagine you have several computers, each running a dozen programs that access the Internet: Skype, ICQ, etc." "And these programs want to communicate with each other ...."
    Available
  • Tasks | Level 10 | Lesson 8

    Java Collections
    Level 10, Lesson 8
    Available
  • Date, SQL date, timestamp

    Java Collections
    Level 10, Lesson 9
    "I remembered that I wanted to tell you a little about working with dates." "You already told me that Java has the Date class, and I can use that class to work with dates." "Hmm. Well, the Date class has been outdated of a while." "Now it's recommended to instead use the Calendar class, which has a getTime() method that returns the current date." "This is a Calendar object is usually created ..."
    Available
  • Tasks | Level 10 | Lesson 10

    Java Collections
    Level 10, Lesson 10
    Available
  • Learning to google | Level 10 | Lesson 11

    Java Collections
    Level 10, Lesson 11
    "Hi, Amigo!" "Let's continue our lessons on how to google." "Here are some exercises ..."
    Available
  • Useful links from the Professor — 40

    Java Collections
    Level 10, Lesson 12
    "Hi, Amigo! It's hard to believe that you are already here! But wait a minute — I always believed in you, of course, because you carefully read and studied my lessons and studied some more. You are one of my best students..."
    Available
  • The single biggest reason why start-ups succeed

    Java Collections
    Level 10, Lesson 13
    "Hi, Amigo!" "Hi, Julio." "Another ten levels are behind you. Let me shake your hand. You're making visible progress." "So many new topics, and still so many questions that need to be answered." "Don't worry about it. Everything will fall into place. But now, it's time for a break ..."
    Available
  • Interview questions | Level 10

    Java Collections
    Level 10, Lesson 14
    "Hi, Amigo!"
    Available
  • Big task: Write Sokoban

    Java Collections
    Level 10, Lesson 15
    "Hello, soldier!" "Hello, Captain Squirrels, sir!" "Congratulations. Today we have a day off." "And we can do whatever we want?" "Yes, Amigo. You can play with your toys all day long. For example, Sokoban. My favorite game since childhood. I can't get past level 435. Can you help?" "Of course, I'll will help, I'll show you, Captain." "Captain Squirrels pulls an old Game Boy out of his pocket and starts up the monochrome version ..."
    Available
  • You’ve completed the CodeGym Java Core course! Congratulations!

    Java Collections
    Level 11, Lesson 0
    You’d spent hundreds of hours practising, read 500 mini-lectures, solved 1200 tasks through 40 levels. You are extremely cool! Your brain is a peremptory automatic system for solving problems and writing Java programs. If you continue to train your brain, you will become a world-class professional in a couple of years. his will let you choose your employers on your own terms. Sure it doesn’t mean you know everything...
    Available
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CodeGym CodeGym is an online course for learning Java programming from scratch. This course is a perfect way to master Java for beginners. It contains 1200+ tasks with instant verification and an essential scope of Java fundamentals theory. To help you succeed in education, we’ve implemented a set of motivational features: quizzes, coding projects, content about efficient learning and Java developer’s career.
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