lots of exercises in java... from https://github.com/exercism/java

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  1. {
  2. "active": true,
  3. "blurb": "Java is a very widely used Object Oriented programming language. It's safe, simple to use and portable so that you can \"write once, run anywhere\".",
  4. "exercises": [
  5. {
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  7. "difficulty": 1,
  8. "slug": "hello-world",
  9. "topics": [
  10. "strings"
  11. ],
  12. "unlocked_by": null,
  13. "uuid": "f77dc7e3-35a8-4300-a7c8-2c1765e9644d"
  14. },
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  17. "difficulty": 1,
  18. "slug": "two-fer",
  19. "topics": [
  20. "conditionals",
  21. "strings"
  22. ],
  23. "unlocked_by": null,
  24. "uuid": "74515d45-565b-4be2-96c4-77e58efa9257"
  25. },
  26. {
  27. "core": false,
  28. "difficulty": 2,
  29. "slug": "rna-transcription",
  30. "topics": null,
  31. "unlocked_by": null,
  32. "uuid": "8e983ed2-62f7-439a-a144-fb8fdbdf4d30"
  33. },
  34. {
  35. "core": false,
  36. "difficulty": 3,
  37. "slug": "pangram",
  38. "topics": [
  39. "strings",
  40. "pattern_matching",
  41. "regular_expressions"
  42. ],
  43. "unlocked_by": null,
  44. "uuid": "133b0f84-bdc7-4508-a0a1-5732a7db81ef"
  45. },
  46. {
  47. "core": true,
  48. "difficulty": 3,
  49. "slug": "hamming",
  50. "topics": [
  51. "integers",
  52. "loops",
  53. "strings"
  54. ],
  55. "unlocked_by": null,
  56. "uuid": "ce899ca6-9cc7-47ba-b76f-1bbcf2630b76"
  57. },
  58. {
  59. "core": true,
  60. "difficulty": 3,
  61. "slug": "gigasecond",
  62. "topics": [
  63. "dates",
  64. "integers",
  65. "time"
  66. ],
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  68. "uuid": "bf1641c8-dc0d-4d38-9cfe-b4c132ea3553"
  69. },
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  72. "difficulty": 3,
  73. "slug": "space-age",
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  75. "conditionals",
  76. "floating_point_numbers",
  77. "mathematics"
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  80. "uuid": "e5b524cd-3a1c-468a-8981-13e8eeccb29d"
  81. },
  82. {
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  84. "difficulty": 3,
  85. "slug": "acronym",
  86. "topics": [
  87. "loops",
  88. "strings",
  89. "searching",
  90. "parsing"
  91. ],
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  93. "uuid": "c31bbc6d-bdcf-44f7-bf35-5f98752e38d0"
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  105. "difficulty": 3,
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  151. },
  152. {
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  155. "slug": "luhn",
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  158. "booleans",
  159. "loops",
  160. "mathematics",
  161. "strings",
  162. "type_conversion"
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  173. "uuid": "c1d4e0b4-6a0f-4be9-8222-345966621f53"
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  182. },
  183. {
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  185. "difficulty": 4,
  186. "slug": "largest-series-product",
  187. "topics": [
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  189. "type_conversion",
  190. "integers",
  191. "strings",
  192. "mathematics"
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  211. "arrays",
  212. "conditionals",
  213. "loops"
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  221. "slug": "rotational-cipher",
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  224. "uuid": "9eb41883-55ef-4681-b5ac-5c2259302772"
  225. },
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  229. "slug": "kindergarten-garden",
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  232. "uuid": "0b92ffee-c092-4ab1-ad78-76c8cf80e1b5"
  233. },
  234. {
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  236. "difficulty": 4,
  237. "slug": "collatz-conjecture",
  238. "topics": null,
  239. "unlocked_by": "triangle",
  240. "uuid": "1500d39a-c9d9-4d3a-9e77-fdc1837fc6ad"
  241. },
  242. {
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  244. "difficulty": 4,
  245. "slug": "nth-prime",
  246. "topics": null,
  247. "unlocked_by": "triangle",
  248. "uuid": "2c69db99-648d-4bd7-8012-1fbdeff6ca0a"
  249. },
  250. {
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  252. "difficulty": 4,
  253. "slug": "saddle-points",
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  255. "unlocked_by": null,
  256. "uuid": "8dfc2f0d-1141-46e9-95e2-6f35ccf6f160"
  257. },
  258. {
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  260. "difficulty": 4,
  261. "slug": "diamond",
  262. "topics": [
  263. "strings",
  264. "loops",
  265. "arrays",
  266. "lists",
  267. "text_formatting"
  268. ],
  269. "unlocked_by": "two-fer",
  270. "uuid": "ecbd997b-86f4-4e11-9ff0-706ac2899415"
  271. },
  272. {
  273. "core": false,
  274. "difficulty": 4,
  275. "slug": "isogram",
  276. "topics": [
  277. "conditionals",
  278. "loops",
  279. "parsing",
  280. "strings"
  281. ],
  282. "unlocked_by": "hello-world",
  283. "uuid": "c3e89c7c-3a8a-4ddc-b653-9b0ff9e1d7d8"
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  288. "slug": "flatten-array",
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  291. "uuid": "a732a838-8170-458a-a85e-d6b4c46f97a1"
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  293. {
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  295. "difficulty": 5,
  296. "slug": "pig-latin",
  297. "topics": [
  298. "arrays",
  299. "lists",
  300. "strings",
  301. "transforming"
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  303. "unlocked_by": "hello-world",
  304. "uuid": "38bc80ae-d842-4c04-a797-48edf322504d"
  305. },
  306. {
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  308. "difficulty": 5,
  309. "slug": "phone-number",
  310. "topics": [
  311. "conditionals",
  312. "pattern_matching",
  313. "strings",
  314. "regular_expressions"
  315. ],
  316. "unlocked_by": "hamming",
  317. "uuid": "5f9139e7-9fbb-496a-a0d7-a946283033de"
  318. },
  319. {
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  321. "difficulty": 5,
  322. "slug": "nucleotide-count",
  323. "topics": [
  324. "conditionals",
  325. "exception_handling",
  326. "integers",
  327. "maps",
  328. "parsing",
  329. "searching",
  330. "strings"
  331. ],
  332. "unlocked_by": "hamming",
  333. "uuid": "2d80fdfc-5bd7-4b67-9fbe-8ab820d89051"
  334. },
  335. {
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  337. "difficulty": 5,
  338. "slug": "word-count",
  339. "topics": null,
  340. "unlocked_by": null,
  341. "uuid": "3603b770-87a5-4758-91f3-b4d1f9075bc1"
  342. },
  343. {
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  345. "difficulty": 5,
  346. "slug": "run-length-encoding",
  347. "topics": null,
  348. "unlocked_by": "rotational-cipher",
  349. "uuid": "4499a3f9-73a7-48bf-8753-d5b6abf588c9"
  350. },
  351. {
  352. "core": true,
  353. "difficulty": 5,
  354. "slug": "robot-name",
  355. "topics": null,
  356. "unlocked_by": null,
  357. "uuid": "d7c2eed9-64c7-4c4a-b45d-c787d460337f"
  358. },
  359. {
  360. "core": false,
  361. "difficulty": 5,
  362. "slug": "prime-factors",
  363. "topics": null,
  364. "unlocked_by": "triangle",
  365. "uuid": "599c08ec-7338-46ed-99f8-a76f78f724e6"
  366. },
  367. {
  368. "core": false,
  369. "difficulty": 5,
  370. "slug": "allergies",
  371. "topics": [
  372. "booleans",
  373. "conditionals",
  374. "enumerations",
  375. "integers",
  376. "lists",
  377. "loops"
  378. ],
  379. "unlocked_by": "gigasecond",
  380. "uuid": "6a617ddb-04e3-451c-bb30-27ccd0be9125"
  381. },
  382. {
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  384. "difficulty": 5,
  385. "slug": "bob",
  386. "topics": [
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  388. "conditionals",
  389. "strings"
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  391. "unlocked_by": "two-fer",
  392. "uuid": "34cd328c-cd96-492b-abd4-2b8716cdcd9a"
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  394. {
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  396. "difficulty": 5,
  397. "slug": "pascals-triangle",
  398. "topics": null,
  399. "unlocked_by": "matrix",
  400. "uuid": "d2a76905-1c8c-4b03-b4f7-4fbff19329f3"
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  402. {
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  404. "difficulty": 5,
  405. "slug": "bracket-push",
  406. "topics": null,
  407. "unlocked_by": "flatten-array",
  408. "uuid": "85aa50ac-0141-49eb-bc6f-62f3f7a97647"
  409. },
  410. {
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  412. "difficulty": 5,
  413. "slug": "series",
  414. "topics": [
  415. "conditionals",
  416. "lists",
  417. "loops",
  418. "strings",
  419. "type_conversion"
  420. ],
  421. "unlocked_by": "hamming",
  422. "uuid": "af80d7f4-c7d0-4d0b-9c30-09da120f6bb9"
  423. },
  424. {
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  426. "difficulty": 5,
  427. "slug": "atbash-cipher",
  428. "topics": null,
  429. "unlocked_by": "rotational-cipher",
  430. "uuid": "d36ce010-210f-4e9a-9d6c-cb933e0a59af"
  431. },
  432. {
  433. "core": false,
  434. "difficulty": 6,
  435. "slug": "spiral-matrix",
  436. "topics": null,
  437. "unlocked_by": "matrix",
  438. "uuid": "163fcc6b-c054-4232-a88b-0aded846a6eb"
  439. },
  440. {
  441. "core": false,
  442. "difficulty": 6,
  443. "slug": "roman-numerals",
  444. "topics": [
  445. "logic",
  446. "mathematics",
  447. "loops",
  448. "integers",
  449. "strings",
  450. "maps"
  451. ],
  452. "unlocked_by": "hamming",
  453. "uuid": "3e728cd4-5e5f-4c69-8a53-bc36d020fcdb"
  454. },
  455. {
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  457. "difficulty": 6,
  458. "slug": "transpose",
  459. "topics": null,
  460. "unlocked_by": "matrix",
  461. "uuid": "57b76837-4610-466f-9373-d5c2697625f1"
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  463. {
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  465. "difficulty": 6,
  466. "slug": "house",
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  468. "unlocked_by": "two-fer",
  469. "uuid": "6b51aca3-3451-4a64-ad7b-00b151d7548a"
  470. },
  471. {
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  474. "slug": "food-chain",
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  486. "slug": "beer-song",
  487. "topics": [
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  489. "loops",
  490. "variables",
  491. "text_formatting",
  492. "conditionals"
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  500. "slug": "queen-attack",
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  503. "matrices",
  504. "conditionals",
  505. "classes",
  506. "games",
  507. "mathematics"
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  552. {
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  555. "slug": "minesweeper",
  556. "topics": [
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  558. "matrices",
  559. "games",
  560. "conditionals",
  561. "strings",
  562. "lists"
  563. ],
  564. "unlocked_by": "scrabble-score",
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  567. {
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  570. "slug": "wordy",
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  572. "unlocked_by": "secret-handshake",
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