Lessons

"Hi, Amigo!" "Today I'm going to tell you about some interesting things in Java." "Infinity." "In Java, the double type has special values for positive infinity and negative infinity. A positive number divided by 0.0 yields positive infinity, and a negative number — negative infinity. " "These concepts are represented by special Double constants ..."

"Hi, Amigo!" "I'd also like to talk about bitmasks and XOR." "You already know that numbers consist of bits and you can perform various operations on these bits. A bitmask is a representation of several different logical values (true/false values) as a single integer. In this case, each boolean-value corresponds to a specific bit. Here's how this could be done ..."

"Hi, Amigo!" "Let's continue our lessons on how to google." "Here are some exercises ..."

"Congratulations on advancing to a new stage of training, Amigo! It's amazing. It seems like it was only yesterday that you began to create your own classes and you memorized all the primitive data types..." "Over the years, time seems to be passing more quickly, Professor, but I can remember..."

"Hi, Amigo!" "Hi, Julio." "Another ten levels are behind you. How are you feeling?" "Like I'm in deadlock…" "Hmm... That means the training is going well. Have a seat and relax ..."

"Hi, Amigo!"

"Hello, soldier!" "Congratulations on upgrading your skills. We need guys who are prepared to do anything." "I'm sure you still have many unfinished tasks. It's time to finish some of them! ..."

You've reached Level 31

"Hi, Amigo. Long time, no see." "Hi, Bilaabo. What are you going to talk about?" "Today I'm going to tell you about working with files. Java has a special class (File) that you can use to manage files on a hard drive. For managing file contents, there are other classes: FileInputStream, FileOutputStream, etc ..."

"Hi, Amigo! I came up with a couple of interesting tasks for you." "They can only be completed in IntelliJ IDEA. Take a look at these interesting conditions…"

"Oh, Rishi! Hi!" "Hi, Amigo! How's life?" "Great. Bilaabo has just been telling me a bunch of interesting things about File, and how to work with it." "As it happens, I think I have something to add on this topic." "Really? Then I'm all ears." "Okay, listen up. Java is constantly evolving. Its developers are constantly looking for new ways to do different things more efficiently. In Java 7, they added an alternative to the File class ..."

"Hi, Amigo!" I came up with a couple of interesting tasks for you." "They can only be completed in IntelliJ IDEA. Take a look at these interesting conditions…"