Lessons
Start
Start learning
CodeGym /Courses /Java Core /Bonus task | Lesson 11 | Level 9

Bonus task | Lesson 11 | Level 9

Java Core
Level 9 , Lesson 11
Available

"Hello, Amigo! Enough messing around! Here are your tasks. They are going to be more difficult than the previous ones, and they'll be sure to improve your processor. And that's certainly something we need. If you run into difficulties, check with your colleagues. They'll definitely help."

Kotlin
20
Task
Java Core, level 9, lesson 11
Locked
Tracking changes
Tracking changes
Open
20
Task
Java Core, level 9, lesson 11
Locked
Your own FileWriter
Your own FileWriter
Open
20
Task
Java Core, level 9, lesson 11
Locked
Introducing tags
Introducing tags
Open
12
Task
Java Core, level 9, lesson 11
Locked
Calculating salaries
Calculating salaries
Open
12
Task
Java Core, level 9, lesson 11
Locked
The richest
The richest
Open
20
Task
Java Core, level 9, lesson 11
Locked
John Johnson
John Johnson
Open
12
Task
Java Core, level 9, lesson 11
Locked
Searching for the right lines
Searching for the right lines
Open
12
Task
Java Core, level 9, lesson 11
Locked
Words with numbers
Words with numbers
Open
20
Task
Java Core, level 9, lesson 11
Locked
Replacing numbers
Replacing numbers
Open
12
Task
Java Core, level 9, lesson 11
Locked
Long words
Long words
Open

"You did everything already? Well, here are some exercises that are even more difficult:"

12
Task
Java Core, level 9, lesson 11
Locked
Mirror image
Mirror image
Open
12
Task
Java Core, level 9, lesson 11
Locked
Contextual advertising
Contextual advertising
Open
12
Task
Java Core, level 9, lesson 11
Locked
Correct the bug. Classes and interfaces
Correct the bug. Classes and interfaces
Open
Comments (46)
TO VIEW ALL COMMENTS OR TO MAKE A COMMENT,
GO TO FULL VERSION
Untitled by Anon Level 49, Germany
24 May 2023
For the "introducing tags" task, I might have brainstormed and then scratched off ten different ideas about how to locate and break down individual nests. I finally made it work with lots of debugging, StringBuilder's insert function and the newline character. The actual nest opening is straightfoward.
Krzysiek Nowak Level 33, Poland, Poland
17 May 2023
In the "Searching for the right lines" there is a little mistake in a "correct solution", namely "readedString" instead of "readString" ;)
Tasmoda Level 28, Midrand, South Africa
18 August 2022
"You did everything already? Well, here are some exercises that are even more difficult:"😂🤣.. I'm seeing this while super stuck on the first task. I wonder what kind of a brain thinks up these tasks. Damn!
Justin Smith Level 41, Greenfield, USA, United States
21 October 2021
Whenever I get to this page of a level, it's always like "gonna be here for a while".
Gellert Varga Level 23, Szekesfehervar, Hungary
24 October 2021
It happens to me too...
Gellert Varga Level 23, Szekesfehervar, Hungary
17 October 2021
About task1924 Replacing numbers: TEST INPUT: az 1 ez 12 12. 12? 11- 11) amaz Bla2blabla 2. I1n 0 masodik 3 sor 5 5. 5* 5/ 8 In 7! vi4ew 9- 11 11b 11c a11b 6view 13, OUTPUT OF MY FIRST REJECTED CODE: az one ez twelve 12. 12? 11- 11) amaz Bla2blabla 2. I1n zero masodik three sor five 5. 5* 5/ eight In 7! vi4ew 9- eleven 11b 11c a11b 6view 13, OUTPUT OF MY SECOND REJECTED CODE: az,one,ez,twelve,twelve.,twelve?,eleven-,eleven),amaz,Bla2blabla,,two. I1n,zero,masodik,,three,,,sor,five,five.,five*,five/,,,,eight,In,seven! vi4ew,nine-,eleven,elevenb,elevenc,a11b,6view,13, ACCEPTED OUTPUT: az one ez twelve twelve. twelve? eleven- eleven) amaz Bla2blabla two. I1n zero masodik three sor five five. five* five/ eight In seven! vi4ew nine- eleven elevenb elevenc a11b 6view 13,
Thành Black Level 49, Hanoi
5 October 2021
three days for this task.
Jurij Thmsn Level 29, Flensburg, Germany
21 April 2021
first time I gave up on a task (Introducing tags) 😭 I'll try it again in the future. I hope RegEx and Matcher will be taught later in this course properly, I read like 10 tutorials on this, but still don't really know how to use it ("Replacing numbers" made this clear!)
Andrei Level 41
22 February 2021
Man, it took me I think about 3 weeks to finish this level, with almost half of that time spent on these tasks. It's done, yay!
Maxim Raitin Level 20, Tomsk, Russian Federation
20 July 2021
lol, How many hours do you spend per day?
Andrei Level 41
20 July 2021
I try 4 per work day. what's funny? 🙂
Chandan Thapa Level 22, Dubai, United Arab Emirates
18 January 2021
the hardest task so far in my codegym journey was tracking changes.. but wait that wasn't enough, Introducing tags took that place. Spent days on these two tasks. But learned a lot in the process, . :) Glad!
Seferi Level 22, United Federation of Planets
19 November 2020
I took the easy way out for the task 'introducing tags' and used Jsoup..