Johann Karl Holler
Level 22, Heilbronn
Rating:
30
Rating
You never know what you can do until you try!
Complete all tasks in Level 2. Java Core quest.
36/36
30
Rating
Ready for anything!
Complete all tasks in Level 1. Java Core quest.
26/26
25
Rating
Platinum Marathon
Earn the Marathon achievement (5 tasks in one day) 42 times
42/42
10
Rating
Hungry Snake
Implement the "Hungry Snake" game
20/20
20
Rating
Platinum Sprint
Earn the Sprint achievement (2 tasks in one day) 42 times
42/42
25
Rating
Golden Hackathon
Earn the Hackathon achievement (9 tasks in one day) 21 times
21/21
15
Rating
The 300 Spartans
Complete 300 tasks
300/300
20
Rating
Golden Marathon
Earn the Marathon achievement (5 tasks in one day) 21 times
21/21
7
Rating
Midas Touch!
Complete all tasks in Level 7. Java Syntax quest
31/31
15
Rating
Golden Sprint
Earn the Sprint achievement (2 tasks in one day) 21 times
21/21
5
Rating
Wizard apprentice
Complete all tasks in Level 6. Java Syntax quest
25/25
5
Rating
Pocket protector
Complete all tasks in Level 5. Java Syntax quest
35/35
5
Rating
Never give up!
Complete all tasks in Level 4. Java Syntax quest
46/46
12
Rating
200% Efficiency
Complete 200 tasks
200/200
3
Rating
One step back and two steps forward!
Complete all tasks in Level 3. Java Syntax quest
29/29
20
Rating
Silver Hackathon
Earn the Hackathon achievement (9 tasks in one day) seven times
7/7
15
Rating
Silver Marathon
Earn the Marathon achievement (5 tasks in one day) seven times
7/7
10
Rating
Centurion
Complete 100 tasks
100/100
10
Rating
Silver Sprint
Earn the Sprint achievement (2 tasks in one day) seven times
7/7
3
Rating
Combo!
Complete all tasks in Level 2. Java Syntax quest
22/22
7
Rating
50 shades of coding
Complete 50 tasks
50/50
3
Rating
The Scientific Approach!
Complete all tasks in Level 1. Java Syntax quest
23/23
5
Rating
Perfect 10
Complete 10 tasks
10/10
1
Rating
Well begun is half done
Complete Level 0
1/1
3
Rating
Gimme 5!
Complete five tasks
5/5
1
Rating
One small step
Complete your first task
1/1
1
Rating
Commentator
Get 10 likes for a comment in the Lessons or Tasks section
3/10
35
Rating
Miracle of programming
Complete all tasks in Level 1. Java Multithreading quest.
2/29
45
Rating
Java is more than precious code
Complete all tasks in Level 10. Java Core quest.
9/28
40
Rating
Slow and steady wins the race
Complete all tasks in Level 9. Java Core quest.
6/29
40
Rating
No pain, no gain
Complete all tasks in Level 8. Java Core quest.
21/29
40
Rating
Old school
Complete all tasks in Level 7. Java Core quest.
11/23
35
Rating
Hero of the day
Complete all tasks in Level 6. Java Core quest.
29/34
35
Rating
Omnipresent
Complete all tasks in Level 5. Java Core quest.
29/34
35
Rating
DIY
Complete all tasks in Level 4. Java Core quest.
23/24
30
Rating
Bug fighter
Complete all tasks in Level 3. Java Core quest.
30/31
30
Rating
Platinum Hackathon
Earn the Hackathon achievement (9 tasks in one day) 42 times
29/42
10
Rating
2048
Implement the "2048" game
5/18
10
Rating
Elon Musk
Complete all tasks in the first quest.
304/309
7
Rating
Luck is on my side!
Complete all tasks in Level 9. Java Syntax quest
30/33
7
Rating
A programmer is born
Complete all tasks in Level 8. Java Syntax quest
32/33
9
Rating
Combo master!
Complete all tasks in Level 10. Java Syntax quest
22/23
10
Rating
Mine Picker
Implement the "Mine Picker" game
8/16
1
Rating
Daily
Sprint
Complete two tasks in one day
0/2
35
Rating
Onward and upward II
Complete all tasks in Level 1. Java Collections quest.
0/18
5
Rating
100
Test: 5 days of code
Complete at least one task per day for 5 days in a row
0/5
15
Rating
Galabugs Invaders
Implement the "Galabugs Invaders" game
0/34
15
Rating
Racer
Implement the "Racer" game
0/28
15
Rating
Moon Lander
Implement the "Moon Lander" game
0/23
1
Rating
Volunteer
Have your answer selected as the solution in the Help section once
0/1
1
Rating
Dickens
Get 10 likes for a post in the Random group
0/10