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": [
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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": [
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  21. "strings"
  22. ],
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  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. },
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  52. "difficulty": 3,
  53. "slug": "hamming",
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  56. "loops",
  57. "strings"
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  60. "uuid": "ce899ca6-9cc7-47ba-b76f-1bbcf2630b76"
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  68. "integers",
  69. "time"
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  80. "floating_point_numbers",
  81. "mathematics"
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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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  186. "slug": "luhn",
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  190. "loops",
  191. "mathematics",
  192. "strings",
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  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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  244. "mathematics"
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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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  265. "slug": "rotational-cipher",
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  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. {
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  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",
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  302. "difficulty": 4,
  303. "slug": "nth-prime",
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  306. "exception_handling",
  307. "lists",
  308. "loops",
  309. "integers"
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  320. "uuid": "8dfc2f0d-1141-46e9-95e2-6f35ccf6f160"
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  322. {
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  324. "difficulty": 4,
  325. "slug": "diamond",
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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"
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  346. "unlocked_by": "hello-world",
  347. "uuid": "c3e89c7c-3a8a-4ddc-b653-9b0ff9e1d7d8"
  348. },
  349. {
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  351. "difficulty": 5,
  352. "slug": "flatten-array",
  353. "topics": [
  354. "arrays",
  355. "lists",
  356. "loops",
  357. "recursion"
  358. ],
  359. "unlocked_by": null,
  360. "uuid": "a732a838-8170-458a-a85e-d6b4c46f97a1"
  361. },
  362. {
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  364. "difficulty": 5,
  365. "slug": "pig-latin",
  366. "topics": [
  367. "arrays",
  368. "lists",
  369. "strings",
  370. "transforming"
  371. ],
  372. "unlocked_by": "hello-world",
  373. "uuid": "38bc80ae-d842-4c04-a797-48edf322504d"
  374. },
  375. {
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  377. "difficulty": 5,
  378. "slug": "phone-number",
  379. "topics": [
  380. "conditionals",
  381. "pattern_matching",
  382. "strings",
  383. "regular_expressions"
  384. ],
  385. "unlocked_by": "hamming",
  386. "uuid": "5f9139e7-9fbb-496a-a0d7-a946283033de"
  387. },
  388. {
  389. "core": false,
  390. "difficulty": 5,
  391. "slug": "nucleotide-count",
  392. "topics": [
  393. "conditionals",
  394. "exception_handling",
  395. "integers",
  396. "maps",
  397. "parsing",
  398. "searching",
  399. "strings"
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  401. "unlocked_by": "hamming",
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  407. "slug": "word-count",
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  410. "uuid": "3603b770-87a5-4758-91f3-b4d1f9075bc1"
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  412. {
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  414. "difficulty": 5,
  415. "slug": "run-length-encoding",
  416. "topics": null,
  417. "unlocked_by": "rotational-cipher",
  418. "uuid": "4499a3f9-73a7-48bf-8753-d5b6abf588c9"
  419. },
  420. {
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  422. "difficulty": 5,
  423. "slug": "robot-name",
  424. "topics": null,
  425. "unlocked_by": null,
  426. "uuid": "d7c2eed9-64c7-4c4a-b45d-c787d460337f"
  427. },
  428. {
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  430. "difficulty": 5,
  431. "slug": "prime-factors",
  432. "topics": [
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  434. "conditionals",
  435. "integers",
  436. "lists",
  437. "loops",
  438. "mathematics"
  439. ],
  440. "unlocked_by": "triangle",
  441. "uuid": "599c08ec-7338-46ed-99f8-a76f78f724e6"
  442. },
  443. {
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  445. "difficulty": 5,
  446. "slug": "allergies",
  447. "topics": [
  448. "booleans",
  449. "conditionals",
  450. "enumerations",
  451. "integers",
  452. "lists",
  453. "loops"
  454. ],
  455. "unlocked_by": "gigasecond",
  456. "uuid": "6a617ddb-04e3-451c-bb30-27ccd0be9125"
  457. },
  458. {
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  460. "difficulty": 5,
  461. "slug": "bob",
  462. "topics": [
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  464. "conditionals",
  465. "strings"
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  467. "unlocked_by": "two-fer",
  468. "uuid": "34cd328c-cd96-492b-abd4-2b8716cdcd9a"
  469. },
  470. {
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  472. "difficulty": 5,
  473. "slug": "pascals-triangle",
  474. "topics": [
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  476. "matrices",
  477. "algorithms",
  478. "mathematics",
  479. "exception_handling",
  480. "integers"
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  482. "unlocked_by": "matrix",
  483. "uuid": "d2a76905-1c8c-4b03-b4f7-4fbff19329f3"
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  495. "difficulty": 5,
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  500. "loops",
  501. "strings",
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  504. "unlocked_by": "hamming",
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  529. "mathematics",
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  541. "slug": "transpose",
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  544. "arrays",
  545. "lists",
  546. "matrices",
  547. "strings",
  548. "text_formatting"
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  556. "slug": "house",
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  558. "unlocked_by": "two-fer",
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  564. "slug": "food-chain",
  565. "topics": [
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  568. "strings"
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  576. "slug": "beer-song",
  577. "topics": [
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  579. "loops",
  580. "variables",
  581. "text_formatting",
  582. "conditionals"
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  587. {
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  589. "difficulty": 6,
  590. "slug": "queen-attack",
  591. "topics": [
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  593. "matrices",
  594. "conditionals",
  595. "classes",
  596. "games",
  597. "mathematics"
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