Java 트랙 관리

이 페이지는 Exercism 커뮤니티가 Java 트랙을 관리하는 데 필요한 정보와 도구를 제공해요.

학생
283,284
제출
4,878,880
멘토링 토론
17,725

Java 트랙 정상이에요 ✅

구축 중

Java 실라버스

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트랙 실라버스 만들기를 도와주세요. 실라버스는 프로그래밍 언어의 기초 요소를 가르치기 위해 개념과 연습 문제를 모아 놓은 것이에요.

다음 목표: 개념을 최소 30개 포함한 완성된 실라버스를 만들어요. 자세히 알아보기.
26개 개념 교육 중
Ba
Basics
61,648명 학습 완료
Bo
Booleans
35,720명 학습 완료
Ar
Arrays
18,398명 학습 완료
Fo
For Loops
18,398명 학습 완료
Fo
For-Each Loops
18,398명 학습 완료
Ge
Generic Types
13,310명 학습 완료
Li
Lists
13,310명 학습 완료
Ex
Exceptions
6,868명 학습 완료
Ch
Chars
11,720명 학습 완료
Cl
Classes
12,549명 학습 완료
Co
Constructors
9,176명 학습 완료
In
Interfaces
6,800명 학습 완료
If
If-Else Statements
18,693명 학습 완료
Nu
Numbers
18,693명 학습 완료
St
Strings
23,602명 학습 완료
Te
Ternary Operators
11,012명 학습 완료
Sw
Switch Statements
7,958명 학습 완료
In
Inheritance
7,167명 학습 완료
En
Enums
4,280명 학습 완료
Nu
Nullability
7,629명 학습 완료
Ra
Randomness
4,969명 학습 완료
Da
Date-Time
5,158명 학습 완료
Me
Method Overloading
3,567명 학습 완료
Bi
Bit Manipulation
4,571명 학습 완료
Se
Sets
3,480명 학습 완료
Ma
Maps
2,603명 학습 완료
22개 활성 학습 연습 문제
시작
시도
완료
멘토링 요청
Cook Your Lasagna Cook Your Lasagna
101,820
556,151 (평균 5.5)
61,648 (60.5%)
495 (0.5%)
Annalyn's Infiltration Annalyn's Infiltration
48,077
445,194 (평균 9.3)
35,720 (74.3%)
314 (0.7%)
Bird Watcher Bird Watcher
22,456
304,233 (평균 13.5)
18,398 (81.9%)
480 (2.1%)
Karl's Languages Karl's Languages
14,851
83,936 (평균 5.7)
13,310 (89.6%)
113 (0.8%)
Calculator Conundrum Calculator Conundrum
8,441
111,728 (평균 13.2)
6,868 (81.4%)
115 (1.4%)
Squeaky Clean Squeaky Clean
17,405
253,609 (평균 14.6)
11,720 (67.3%)
495 (2.8%)
Jedlik's Toy Car Jedlik's Toy Car
13,766
118,837 (평균 8.6)
12,549 (91.2%)
154 (1.1%)
Need for Speed Need for Speed
10,534
130,554 (평균 12.4)
9,176 (87.1%)
77 (0.7%)
Remote Control Competition Remote Control Competition
8,543
90,504 (평균 10.6)
6,800 (79.6%)
103 (1.2%)
Cars, Assemble! Cars, Assemble!
20,846
154,077 (평균 7.4)
18,693 (89.7%)
416 (2.0%)
Log Levels Log Levels
36,095
319,776 (평균 8.9)
23,602 (65.4%)
302 (0.8%)
Salary Calculator Salary Calculator
11,874
69,813 (평균 5.9)
11,012 (92.7%)
42 (0.4%)
Football Match Reports Football Match Reports
8,257
34,123 (평균 4.1)
7,958 (96.4%)
56 (0.7%)
Wizards and Warriors Wizards and Warriors
7,885
57,947 (평균 7.3)
7,167 (90.9%)
39 (0.5%)
Logs, Logs, Logs! Logs, Logs, Logs!
5,011
50,683 (평균 10.1)
4,280 (85.4%)
61 (1.2%)
Tim from Marketing Tim from Marketing
8,086
53,207 (평균 6.6)
7,629 (94.3%)
66 (0.8%)
Captain's Log Captain's Log
5,294
32,789 (평균 6.2)
4,969 (93.9%)
21 (0.4%)
Booking Up For Beauty Booking Up For Beauty
6,232
82,766 (평균 13.3)
5,158 (82.8%)
52 (0.8%)
Wizards and Warriors 2 Wizards and Warriors 2
3,930
34,236 (평균 8.7)
3,567 (90.8%)
20 (0.5%)
Secrets Secrets
5,257
28,457 (평균 5.4)
4,571 (87.0%)
7 (0.1%)
Gotta Snatch 'Em All Gotta Snatch 'Em All
4,045
48,365 (평균 12.0)
3,480 (86.0%)
57 (1.4%)
International Calling Connoisseur International Calling Connoisseur
3,035
32,788 (평균 10.8)
2,603 (85.8%)
28 (0.9%)
1개 사용 중단된 학습 연습 문제
시작
시도
완료
멘토링 요청
Play Your Cards! Play Your Cards!
8,676
85,964 (평균 9.9)
6,859 (79.1%)
121 (1.4%)

연습 문제

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연습 문제는 학생이 지금까지 배운 개념을 활용하는 것을 목표로, 임의의 문제를 풀 수 있게 설계된 문제예요.

동기화된 기본 저장소: 9b54e9a017b84d2f62a9bbbe4f9f47dd55c2ab2d (업데이트는 즉시 반영돼요)

다음 목표: 연습 문제 139개를 구현해요. 더 알아보기.
활성 연습 문제 136개
시작함
시도
완료
멘토링 요청
Hello World Hello World
222,549
450,769 (평균 2.0)
136,599 (61.4%)
40 (0.0%)
Leap Leap
8,532
32,334 (평균 3.8)
6,910 (81.0%)
118 (1.4%)
Reverse String Reverse String
16,186
48,823 (평균 3.0)
13,530 (83.6%)
331 (2.0%)
Two Fer Two Fer
24,355
78,172 (평균 3.2)
19,423 (79.7%)
3,928 (16.1%)
Armstrong Numbers Armstrong Numbers
7,671
27,177 (평균 3.5)
6,153 (80.2%)
149 (1.9%)
Darts Darts
7,641
26,662 (평균 3.5)
6,047 (79.1%)
67 (0.9%)
D&D Character D&D Character
5,161
43,020 (평균 8.3)
3,653 (70.8%)
77 (1.5%)
DOT DSL DOT DSL
1,701
7,849 (평균 4.6)
1,058 (62.2%)
8 (0.5%)
Grains Grains
5,137
40,370 (평균 7.9)
4,172 (81.2%)
55 (1.1%)
High Scores High Scores
2,907
23,101 (평균 7.9)
2,327 (80.0%)
38 (1.3%)
Resistor Color Resistor Color
6,867
25,984 (평균 3.8)
5,562 (81.0%)
74 (1.1%)
Resistor Color Duo Resistor Color Duo
4,881
16,180 (평균 3.3)
4,145 (84.9%)
47 (1.0%)
Resistor Color Trio Resistor Color Trio
1,869
21,004 (평균 11.2)
1,590 (85.1%)
40 (2.1%)
RNA Transcription RNA Transcription
6,938
18,411 (평균 2.7)
5,876 (84.7%)
243 (3.5%)
Acronym Acronym
4,886
21,518 (평균 4.4)
3,927 (80.4%)
99 (2.0%)
Difference of Squares Difference of Squares
7,191
24,376 (평균 3.4)
6,306 (87.7%)
711 (9.9%)
Gigasecond Gigasecond
8,776
20,974 (평균 2.4)
6,337 (72.2%)
1,345 (15.3%)
Hamming Hamming
8,794
33,189 (평균 3.8)
7,259 (82.5%)
1,495 (17.0%)
Micro Blog Micro Blog
6,984
39,187 (평균 5.6)
4,313 (61.8%)
104 (1.5%)
Pangram Pangram
5,738
15,623 (평균 2.7)
4,792 (83.5%)
173 (3.0%)
Perfect Numbers Perfect Numbers
3,765
14,491 (평균 3.8)
2,676 (71.1%)
54 (1.4%)
Eliud's Eggs Eliud's Eggs
1,397
4,495 (평균 3.2)
1,254 (89.8%)
17 (1.2%)
Protein Translation Protein Translation
3,873
20,124 (평균 5.2)
3,057 (78.9%)
62 (1.6%)
Raindrops Raindrops
8,487
22,481 (평균 2.6)
7,176 (84.6%)
258 (3.0%)
Say Say
2,917
19,647 (평균 6.7)
1,343 (46.0%)
41 (1.4%)
Scrabble Score Scrabble Score
6,445
23,483 (평균 3.6)
5,448 (84.5%)
1,085 (16.8%)
Secret Handshake Secret Handshake
4,374
21,904 (평균 5.0)
3,368 (77.0%)
467 (10.7%)
Space Age Space Age
4,737
10,992 (평균 2.3)
3,663 (77.3%)
65 (1.4%)
Collatz Conjecture Collatz Conjecture
2,395
9,513 (평균 4.0)
1,978 (82.6%)
38 (1.6%)
Diamond Diamond
3,017
16,143 (평균 5.4)
1,993 (66.1%)
57 (1.9%)
Error Handling Error Handling
2,105
15,042 (평균 7.1)
1,225 (58.2%)
7 (0.3%)
ISBN Verifier ISBN Verifier
2,913
14,385 (평균 4.9)
2,295 (78.8%)
44 (1.5%)
Isogram Isogram
5,343
20,477 (평균 3.8)
4,333 (81.1%)
172 (3.2%)
Killer Sudoku Helper Killer Sudoku Helper
913
4,761 (평균 5.2)
501 (54.9%)
18 (2.0%)
Kindergarten Garden Kindergarten Garden
1,448
5,089 (평균 3.5)
1,074 (74.2%)
13 (0.9%)
Largest Series Product Largest Series Product
2,108
13,068 (평균 6.2)
1,667 (79.1%)
23 (1.1%)
Luhn Luhn
2,793
13,914 (평균 5.0)
2,180 (78.1%)
51 (1.8%)
Matrix Matrix
3,449
17,856 (평균 5.2)
2,592 (75.2%)
314 (9.1%)
Nth Prime Nth Prime
1,630
6,332 (평균 3.9)
1,270 (77.9%)
21 (1.3%)
Prism Prism
146
1,034 (평균 7.1)
65 (44.5%)
0 (0.0%)
Proverb Proverb
2,990
8,868 (평균 3.0)
2,428 (81.2%)
34 (1.1%)
Rate Limiter Rate Limiter
307
1,355 (평균 4.4)
165 (53.7%)
4 (1.3%)
Rotational Cipher Rotational Cipher
2,595
13,084 (평균 5.0)
2,177 (83.9%)
226 (8.7%)
Saddle Points Saddle Points
1,955
8,925 (평균 4.6)
1,338 (68.4%)
161 (8.2%)
Sieve Sieve
1,603
4,645 (평균 2.9)
1,275 (79.5%)
25 (1.6%)
Split-Second Stopwatch Split-Second Stopwatch
229
1,895 (평균 8.3)
148 (64.6%)
0 (0.0%)
Sum of Multiples Sum of Multiples
2,209
8,028 (평균 3.6)
1,626 (73.6%)
39 (1.8%)
Swift Scheduling Swift Scheduling
206
1,934 (평균 9.4)
140 (68.0%)
1 (0.5%)
Triangle Triangle
3,050
12,366 (평균 4.1)
2,590 (84.9%)
262 (8.6%)
Twelve Days Twelve Days
2,837
15,628 (평균 5.5)
2,134 (75.2%)
33 (1.2%)
Variable Length Quantity Variable Length Quantity
766
3,060 (평균 4.0)
400 (52.2%)
2 (0.3%)
Yacht Yacht
1,697
8,282 (평균 4.9)
1,128 (66.5%)
31 (1.8%)
Allergies Allergies
1,444
5,116 (평균 3.5)
1,088 (75.3%)
25 (1.7%)
Atbash Cipher Atbash Cipher
912
5,085 (평균 5.6)
726 (79.6%)
8 (0.9%)
Bob Bob
2,276
13,868 (평균 6.1)
1,845 (81.1%)
61 (2.7%)
Flatten Array Flatten Array
1,870
8,333 (평균 4.5)
1,396 (74.7%)
137 (7.3%)
Conway's Game of Life Conway's Game of Life
501
2,342 (평균 4.7)
314 (62.7%)
1 (0.2%)
Grep Grep
786
3,982 (평균 5.1)
432 (55.0%)
7 (0.9%)
Knapsack Knapsack
1,029
4,759 (평균 4.6)
609 (59.2%)
10 (1.0%)
Ledger Ledger
460
3,261 (평균 7.1)
253 (55.0%)
9 (2.0%)
Matching Brackets Matching Brackets
907
3,457 (평균 3.8)
650 (71.7%)
10 (1.1%)
Nucleotide Count Nucleotide Count
2,232
6,666 (평균 3.0)
1,982 (88.8%)
91 (4.1%)
Pascal's Triangle Pascal's Triangle
891
2,452 (평균 2.8)
635 (71.3%)
5 (0.6%)
Phone Number Phone Number
1,619
9,420 (평균 5.8)
1,230 (76.0%)
26 (1.6%)
Pig Latin Pig Latin
2,773
12,269 (평균 4.4)
1,552 (56.0%)
76 (2.7%)
Prime Factors Prime Factors
962
2,922 (평균 3.0)
736 (76.5%)
11 (1.1%)
Relative Distance Relative Distance
942
5,652 (평균 6.0)
400 (42.5%)
8 (0.8%)
Robot Name Robot Name
1,916
10,772 (평균 5.6)
1,561 (81.5%)
139 (7.3%)
Run-Length Encoding Run-Length Encoding
723
3,154 (평균 4.4)
515 (71.2%)
9 (1.2%)
Series Series
1,081
3,270 (평균 3.0)
884 (81.8%)
11 (1.0%)
Square Root Square Root
636
1,922 (평균 3.0)
502 (78.9%)
9 (1.4%)
Word Count Word Count
2,963
17,250 (평균 5.8)
2,255 (76.1%)
213 (7.2%)
State Of Tic Tac Toe State Of Tic Tac Toe
380
2,579 (평균 6.8)
229 (60.3%)
6 (1.6%)
Affine Cipher Affine Cipher
424
3,148 (평균 7.4)
277 (65.3%)
4 (0.9%)
All Your Base All Your Base
572
2,922 (평균 5.1)
389 (68.0%)
2 (0.3%)
Alphametics Alphametics
609
2,657 (평균 4.4)
249 (40.9%)
3 (0.5%)
Baffling Birthdays Baffling Birthdays
90
411 (평균 4.6)
53 (58.9%)
0 (0.0%)
Bank Account Bank Account
1,751
9,503 (평균 5.4)
1,201 (68.6%)
96 (5.5%)
Binary Search Binary Search
1,414
7,806 (평균 5.5)
1,064 (75.2%)
94 (6.6%)
Bottle Song Bottle Song
859
7,695 (평균 9.0)
543 (63.2%)
19 (2.2%)
Bowling Bowling
1,017
8,270 (평균 8.1)
437 (43.0%)
11 (1.1%)
Camicia Camicia
41
345 (평균 8.4)
23 (56.1%)
0 (0.0%)
ETL ETL
1,869
2,912 (평균 1.6)
1,682 (90.0%)
128 (6.8%)
Flower Field Flower Field
115
491 (평균 4.3)
78 (67.8%)
0 (0.0%)
Food Chain Food Chain
931
3,541 (평균 3.8)
623 (66.9%)
11 (1.2%)
Grade School Grade School
895
3,042 (평균 3.4)
640 (71.5%)
22 (2.5%)
House House
1,004
3,761 (평균 3.7)
718 (71.5%)
10 (1.0%)
Intergalactic Transmission Intergalactic Transmission
920
1,846 (평균 2.0)
101 (11.0%)
5 (0.5%)
Linked List Linked List
1,468
6,366 (평균 4.3)
1,035 (70.5%)
78 (5.3%)
Parallel Letter Frequency Parallel Letter Frequency
796
3,685 (평균 4.6)
491 (61.7%)
13 (1.6%)
Piecing It Together Piecing It Together
82
761 (평균 9.3)
42 (51.2%)
0 (0.0%)
Queen Attack Queen Attack
2,076
7,877 (평균 3.8)
778 (37.5%)
34 (1.6%)
Rail Fence Cipher Rail Fence Cipher
402
1,567 (평균 3.9)
242 (60.2%)
1 (0.2%)
REST API REST API
794
4,387 (평균 5.5)
196 (24.7%)
5 (0.6%)
Robot Simulator Robot Simulator
859
2,758 (평균 3.2)
544 (63.3%)
10 (1.2%)
Roman Numerals Roman Numerals
1,226
3,793 (평균 3.1)
895 (73.0%)
15 (1.2%)
Spiral Matrix Spiral Matrix
633
1,607 (평균 2.5)
397 (62.7%)
6 (0.9%)
Tournament Tournament
783
3,846 (평균 4.9)
398 (50.8%)
10 (1.3%)
Transpose Transpose
579
2,968 (평균 5.1)
316 (54.6%)
2 (0.3%)
Wordy Wordy
607
2,783 (평균 4.6)
358 (59.0%)
6 (1.0%)
Anagram Anagram
3,200
10,471 (평균 3.3)
2,299 (71.8%)
114 (3.6%)
Binary Search Tree Binary Search Tree
688
2,936 (평균 4.3)
388 (56.4%)
9 (1.3%)
Clock Clock
573
2,390 (평균 4.2)
386 (67.4%)
3 (0.5%)
Crypto Square Crypto Square
469
1,879 (평균 4.0)
316 (67.4%)
3 (0.6%)
Dominoes Dominoes
1,098
3,192 (평균 2.9)
293 (26.7%)
9 (0.8%)
Go Counting Go Counting
514
1,502 (평균 2.9)
190 (37.0%)
0 (0.0%)
Markdown Markdown
952
2,238 (평균 2.4)
394 (41.4%)
14 (1.5%)
Meetup Meetup
916
2,448 (평균 2.7)
709 (77.4%)
13 (1.4%)
Poker Poker
778
2,691 (평균 3.5)
237 (30.5%)
6 (0.8%)
SGF Parsing SGF Parsing
157
1,947 (평균 12.4)
87 (55.4%)
2 (1.3%)
Simple Linked List Simple Linked List
785
4,049 (평균 5.2)
470 (59.9%)
10 (1.3%)
Sublist Sublist
520
1,846 (평균 3.6)
332 (63.8%)
0 (0.0%)
Tree Building Tree Building
351
845 (평균 2.4)
160 (45.6%)
3 (0.9%)
Two Bucket Two Bucket
407
1,185 (평균 2.9)
180 (44.2%)
3 (0.7%)
Word Search Word Search
897
2,578 (평균 2.9)
284 (31.7%)
5 (0.6%)
Zebra Puzzle Zebra Puzzle
3,189
2,879 (평균 0.9)
522 (16.4%)
12 (0.4%)
Zipper Zipper
331
966 (평균 2.9)
146 (44.1%)
0 (0.0%)
Book Store Book Store
674
2,325 (평균 3.4)
234 (34.7%)
6 (0.9%)
Change Change
575
3,383 (평균 5.9)
241 (41.9%)
4 (0.7%)
Circular Buffer Circular Buffer
616
2,432 (평균 3.9)
375 (60.9%)
5 (0.8%)
Complex Numbers Complex Numbers
665
2,314 (평균 3.5)
417 (62.7%)
11 (1.7%)
Connect Connect
359
1,804 (평균 5.0)
187 (52.1%)
7 (1.9%)
Hangman Hangman
378
1,129 (평균 3.0)
101 (26.7%)
6 (1.6%)
List Ops List Ops
559
2,358 (평균 4.2)
300 (53.7%)
9 (1.6%)
Mazy Mice Mazy Mice
155
716 (평균 4.6)
71 (45.8%)
4 (2.6%)
OCR Numbers OCR Numbers
395
842 (평균 2.1)
211 (53.4%)
3 (0.8%)
Palindrome Products Palindrome Products
483
1,464 (평균 3.0)
256 (53.0%)
5 (1.0%)
POV POV
169
780 (평균 4.6)
82 (48.5%)
1 (0.6%)
Rational Numbers Rational Numbers
524
3,367 (평균 6.4)
282 (53.8%)
6 (1.1%)
React React
275
1,137 (평균 4.1)
90 (32.7%)
2 (0.7%)
Rectangles Rectangles
374
886 (평균 2.4)
188 (50.3%)
4 (1.1%)
Simple Cipher Simple Cipher
537
1,806 (평균 3.4)
347 (64.6%)
7 (1.3%)
Forth Forth
529
1,849 (평균 3.5)
217 (41.0%)
13 (2.5%)
Pythagorean Triplet Pythagorean Triplet
1,087
6,718 (평균 6.2)
472 (43.4%)
7 (0.6%)
Custom Set Custom Set
596
2,096 (평균 3.5)
268 (45.0%)
5 (0.8%)
Satellite Satellite
531
1,135 (평균 2.1)
179 (33.7%)
4 (0.8%)
지원 중단된 연습 문제 9개
시작함
시도
완료
멘토링 요청
Accumulate Accumulate
110
138 (평균 1.3)
107 (97.3%)
5 (4.5%)
Beer Song Beer Song
867
3,388 (평균 3.9)
664 (76.6%)
15 (1.7%)
Binary Binary
136
181 (평균 1.3)
134 (98.5%)
6 (4.4%)
Diffie-Hellman Diffie-Hellman
228
327 (평균 1.4)
117 (51.3%)
2 (0.9%)
Hexadecimal Hexadecimal
58
74 (평균 1.3)
56 (96.6%)
7 (12.1%)
Minesweeper Minesweeper
795
2,853 (평균 3.6)
519 (65.3%)
9 (1.1%)
Octal Octal
59
70 (평균 1.2)
57 (96.6%)
2 (3.4%)
Strain Strain
111
141 (평균 1.3)
108 (97.3%)
5 (4.5%)
Trinary Trinary
71
85 (평균 1.2)
69 (97.2%)
1 (1.4%)
구현되지 않은 연습 문제 3개
PaaS I/O PaaS I/O
Save the Cow Save the Cow
제외된 연습 문제 1개
Lens Person Lens Person

Test Runner

더 알아보기

솔루션을 받아 모든 테스트를 실행하고 표준화된 출력을 반환하는 단일 책임을 가진 Test Runner를 만들어요.

현재 버전: 149e8132a1ca50237d80ccbf402cc1104dc41eb1 (배포에 최대 10분이 걸려요)

전체 Test Runner 실행 횟수
4,792,682
테스트 실행 통과율
17.3% (827625)
테스트 실행 실패율
38.1% (1828255)
테스트 실행 오류율
44.6% (2136802)

Representer

더 알아보기

Representer를 만들어 봐요: 풀이를 받아 정규화된 표현을 반환하는, 단 하나의 책임만 가진 작은 코드예요.

현재 버전: c84371546bbb96407e400b7e18d7fcc204a0b29c (배포하는 데 최대 10분이 걸려요)

총 Representer 실행 횟수
945,057
총 표현 코멘트 수
109,095
피드백 제공 빈도
11.5%

Java 분석기 만들기: Exercism의 분석기는 제출된 풀이를 자동으로 평가하고 멘토와 같은 코멘트를 제공해요.

현재 버전: 3b609b65df1ca5622fea622d4d1169013ad1f7a5 (배포하는 데 최대 10분이 걸려요)

총 분석기 실행 횟수
660,336
총 분석 코멘트 수
426,537
피드백 제공 빈도
4.3%