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

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  1. {
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  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\".",
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  32. "maps",
  33. "strings"
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  44. "regular_expressions",
  45. "strings"
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  48. "uuid": "133b0f84-bdc7-4508-a0a1-5732a7db81ef"
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  56. "loops",
  57. "strings"
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  69. "time"
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  144. "conditionals",
  145. "cryptography",
  146. "enumerations",
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  190. "loops",
  191. "mathematics",
  192. "strings",
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  234. "strings",
  235. "type_conversion"
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  260. "conditionals",
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  262. "strings"
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  270. "slug": "rotational-cipher",
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  273. "integers",
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  285. "enumerations",
  286. "lists",
  287. "logic",
  288. "loops",
  289. "pattern_recognition",
  290. "strings"
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  297. "difficulty": 4,
  298. "slug": "collatz-conjecture",
  299. "topics": [
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  301. "exception_handling",
  302. "integers",
  303. "mathematics",
  304. "recursion"
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  312. "slug": "nth-prime",
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  315. "exception_handling",
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  317. "lists",
  318. "loops"
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  326. "slug": "saddle-points",
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  329. "conditionals",
  330. "integers",
  331. "lists",
  332. "loops",
  333. "mathematics",
  334. "matrices",
  335. "sets"
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  342. "difficulty": 4,
  343. "slug": "diamond",
  344. "topics": [
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  346. "lists",
  347. "loops",
  348. "strings",
  349. "text_formatting"
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  356. "difficulty": 4,
  357. "slug": "isogram",
  358. "topics": [
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  360. "loops",
  361. "parsing",
  362. "strings"
  363. ],
  364. "unlocked_by": "hello-world",
  365. "uuid": "c3e89c7c-3a8a-4ddc-b653-9b0ff9e1d7d8"
  366. },
  367. {
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  370. "slug": "flatten-array",
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  374. "loops",
  375. "recursion"
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  383. "slug": "pig-latin",
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  386. "lists",
  387. "strings",
  388. "transforming"
  389. ],
  390. "unlocked_by": "hello-world",
  391. "uuid": "38bc80ae-d842-4c04-a797-48edf322504d"
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  393. {
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  395. "difficulty": 5,
  396. "slug": "phone-number",
  397. "topics": [
  398. "conditionals",
  399. "pattern_matching",
  400. "regular_expressions",
  401. "strings"
  402. ],
  403. "unlocked_by": "hamming",
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  406. {
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  408. "difficulty": 5,
  409. "slug": "nucleotide-count",
  410. "topics": [
  411. "conditionals",
  412. "exception_handling",
  413. "integers",
  414. "maps",
  415. "parsing",
  416. "searching",
  417. "strings"
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  419. "unlocked_by": "hamming",
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  422. {
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  424. "difficulty": 5,
  425. "slug": "word-count",
  426. "topics": [
  427. "conditionals",
  428. "integers",
  429. "loops",
  430. "maps",
  431. "strings"
  432. ],
  433. "unlocked_by": null,
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  435. },
  436. {
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  438. "difficulty": 5,
  439. "slug": "run-length-encoding",
  440. "topics": [
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  442. "pattern_matching",
  443. "strings",
  444. "transforming"
  445. ],
  446. "unlocked_by": "rotational-cipher",
  447. "uuid": "4499a3f9-73a7-48bf-8753-d5b6abf588c9"
  448. },
  449. {
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  451. "difficulty": 5,
  452. "slug": "robot-name",
  453. "topics": [
  454. "pattern_matching",
  455. "randomness",
  456. "regular_expressions",
  457. "strings",
  458. "text_formatting"
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  460. "unlocked_by": null,
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  463. {
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  465. "difficulty": 5,
  466. "slug": "prime-factors",
  467. "topics": [
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  469. "conditionals",
  470. "integers",
  471. "lists",
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  473. "mathematics"
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  484. "conditionals",
  485. "enumerations",
  486. "integers",
  487. "lists",
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  548. "slug": "atbash-cipher",
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  552. "strings"
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  554. "unlocked_by": "rotational-cipher",
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  563. "integers",
  564. "loops",
  565. "mathematics",
  566. "matrices"
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  574. "slug": "roman-numerals",
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  577. "logic",
  578. "loops",
  579. "maps",
  580. "mathematics",
  581. "strings"
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  594. "matrices",
  595. "strings",
  596. "text_formatting"
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