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. ],
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  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": [
  31. "strings",
  32. "loops",
  33. "maps"
  34. ],
  35. "unlocked_by": null,
  36. "uuid": "8e983ed2-62f7-439a-a144-fb8fdbdf4d30"
  37. },
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  40. "difficulty": 3,
  41. "slug": "pangram",
  42. "topics": [
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  44. "pattern_matching",
  45. "regular_expressions"
  46. ],
  47. "unlocked_by": null,
  48. "uuid": "133b0f84-bdc7-4508-a0a1-5732a7db81ef"
  49. },
  50. {
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  52. "difficulty": 3,
  53. "slug": "hamming",
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  56. "loops",
  57. "strings"
  58. ],
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  60. "uuid": "ce899ca6-9cc7-47ba-b76f-1bbcf2630b76"
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  64. "difficulty": 3,
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  68. "integers",
  69. "time"
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  77. "slug": "space-age",
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  80. "floating_point_numbers",
  81. "mathematics"
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  89. "slug": "acronym",
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  92. "strings",
  93. "searching",
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  144. "conditionals",
  145. "integers",
  146. "mathematics",
  147. "transforming",
  148. "cryptography",
  149. "enumerations",
  150. "bitwise_operations"
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  163. "enumerations",
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  172. "slug": "sum-of-multiples",
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  176. "arrays",
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  186. "slug": "luhn",
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  190. "loops",
  191. "mathematics",
  192. "strings",
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  223. "difficulty": 4,
  224. "slug": "largest-series-product",
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  228. "integers",
  229. "strings",
  230. "mathematics"
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  237. "difficulty": 4,
  238. "slug": "sieve",
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  241. "lists",
  242. "integers",
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  248. },
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  251. "difficulty": 4,
  252. "slug": "twelve-days",
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  255. "arrays",
  256. "conditionals",
  257. "loops"
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  259. "unlocked_by": "two-fer",
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  264. "difficulty": 4,
  265. "slug": "rotational-cipher",
  266. "topics": null,
  267. "unlocked_by": null,
  268. "uuid": "9eb41883-55ef-4681-b5ac-5c2259302772"
  269. },
  270. {
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  272. "difficulty": 4,
  273. "slug": "kindergarten-garden",
  274. "topics": [
  275. "loops",
  276. "arrays",
  277. "strings",
  278. "logic",
  279. "pattern_recognition",
  280. "enumerations",
  281. "lists"
  282. ],
  283. "unlocked_by": "matrix",
  284. "uuid": "0b92ffee-c092-4ab1-ad78-76c8cf80e1b5"
  285. },
  286. {
  287. "core": false,
  288. "difficulty": 4,
  289. "slug": "collatz-conjecture",
  290. "topics": [
  291. "exception_handling",
  292. "recursion",
  293. "conditionals",
  294. "integers",
  295. "mathematics"
  296. ],
  297. "unlocked_by": "triangle",
  298. "uuid": "1500d39a-c9d9-4d3a-9e77-fdc1837fc6ad"
  299. },
  300. {
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  302. "difficulty": 4,
  303. "slug": "nth-prime",
  304. "topics": [
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  306. "exception_handling",
  307. "lists",
  308. "loops",
  309. "integers"
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  317. "slug": "saddle-points",
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  320. "uuid": "8dfc2f0d-1141-46e9-95e2-6f35ccf6f160"
  321. },
  322. {
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  324. "difficulty": 4,
  325. "slug": "diamond",
  326. "topics": [
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  328. "loops",
  329. "arrays",
  330. "lists",
  331. "text_formatting"
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  333. "unlocked_by": "two-fer",
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  338. "difficulty": 4,
  339. "slug": "isogram",
  340. "topics": [
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  342. "loops",
  343. "parsing",
  344. "strings"
  345. ],
  346. "unlocked_by": "hello-world",
  347. "uuid": "c3e89c7c-3a8a-4ddc-b653-9b0ff9e1d7d8"
  348. },
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  352. "slug": "flatten-array",
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  354. "unlocked_by": null,
  355. "uuid": "a732a838-8170-458a-a85e-d6b4c46f97a1"
  356. },
  357. {
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  359. "difficulty": 5,
  360. "slug": "pig-latin",
  361. "topics": [
  362. "arrays",
  363. "lists",
  364. "strings",
  365. "transforming"
  366. ],
  367. "unlocked_by": "hello-world",
  368. "uuid": "38bc80ae-d842-4c04-a797-48edf322504d"
  369. },
  370. {
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  372. "difficulty": 5,
  373. "slug": "phone-number",
  374. "topics": [
  375. "conditionals",
  376. "pattern_matching",
  377. "strings",
  378. "regular_expressions"
  379. ],
  380. "unlocked_by": "hamming",
  381. "uuid": "5f9139e7-9fbb-496a-a0d7-a946283033de"
  382. },
  383. {
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  385. "difficulty": 5,
  386. "slug": "nucleotide-count",
  387. "topics": [
  388. "conditionals",
  389. "exception_handling",
  390. "integers",
  391. "maps",
  392. "parsing",
  393. "searching",
  394. "strings"
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  396. "unlocked_by": "hamming",
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  399. {
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  405. "uuid": "3603b770-87a5-4758-91f3-b4d1f9075bc1"
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  409. "difficulty": 5,
  410. "slug": "run-length-encoding",
  411. "topics": null,
  412. "unlocked_by": "rotational-cipher",
  413. "uuid": "4499a3f9-73a7-48bf-8753-d5b6abf588c9"
  414. },
  415. {
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  417. "difficulty": 5,
  418. "slug": "robot-name",
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  420. "unlocked_by": null,
  421. "uuid": "d7c2eed9-64c7-4c4a-b45d-c787d460337f"
  422. },
  423. {
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  425. "difficulty": 5,
  426. "slug": "prime-factors",
  427. "topics": [
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  429. "conditionals",
  430. "integers",
  431. "lists",
  432. "loops",
  433. "mathematics"
  434. ],
  435. "unlocked_by": "triangle",
  436. "uuid": "599c08ec-7338-46ed-99f8-a76f78f724e6"
  437. },
  438. {
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  440. "difficulty": 5,
  441. "slug": "allergies",
  442. "topics": [
  443. "booleans",
  444. "conditionals",
  445. "enumerations",
  446. "integers",
  447. "lists",
  448. "loops"
  449. ],
  450. "unlocked_by": "gigasecond",
  451. "uuid": "6a617ddb-04e3-451c-bb30-27ccd0be9125"
  452. },
  453. {
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  455. "difficulty": 5,
  456. "slug": "bob",
  457. "topics": [
  458. "booleans",
  459. "conditionals",
  460. "strings"
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  462. "unlocked_by": "two-fer",
  463. "uuid": "34cd328c-cd96-492b-abd4-2b8716cdcd9a"
  464. },
  465. {
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  467. "difficulty": 5,
  468. "slug": "pascals-triangle",
  469. "topics": [
  470. "arrays",
  471. "matrices",
  472. "algorithms",
  473. "mathematics",
  474. "exception_handling",
  475. "integers"
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  477. "unlocked_by": "matrix",
  478. "uuid": "d2a76905-1c8c-4b03-b4f7-4fbff19329f3"
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  480. {
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  485. "unlocked_by": "flatten-array",
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  491. "slug": "series",
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  494. "lists",
  495. "loops",
  496. "strings",
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  499. "unlocked_by": "hamming",
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  521. "slug": "roman-numerals",
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  540. "lists",
  541. "matrices",
  542. "strings",
  543. "text_formatting"
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  555. },
  556. {
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  559. "slug": "food-chain",
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  563. "strings"
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  570. "difficulty": 6,
  571. "slug": "beer-song",
  572. "topics": [
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  574. "loops",
  575. "variables",
  576. "text_formatting",
  577. "conditionals"
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  585. "slug": "queen-attack",
  586. "topics": [
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  588. "matrices",
  589. "conditionals",
  590. "classes",
  591. "games",
  592. "mathematics"
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