ExecutorService nima uchun mashhur? To'g'ridan-to'g'ri iplarni yaratishga nisbatan uning qanday afzalligi bor?
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116
Java
14605
0
Java 17 da virtual bo'lmayan iplar bilan parallel chaqiruvlarni qanday amalga oshirish mumkin?
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SQL so'rovlarini optimallashtirish nima edi?
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2020 yilda 'Avtomatlashtirilgan Transport Tizimlari'da ishlay boshladingizmi; 17 yoshda edingizmi?
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116
valueOf va fromString qanday farq qiladi?
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115
Docker konteyneri va virtual mashina o'rtasidagi farq nima?
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equals/hashCode shartnomasi haqida gapir.
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Spring Security qanday ishlaydi?
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Java'da alohida ipda vazifani qanday boshlash mumkin?
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Fibonacci ketma-ketligining N-chi elementini qaytaradigan metod yozing
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Qaysi integratsiya o'zaro ta'sir parametrlaridan kengaytirish imkoniyati oshganda yaxshilanmaydi?
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Nima uchun va qanday qilib Kafka ga o'tdingiz, asinxron ishlash va yukni kamaytirish uchun?
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Ushbu usul uchun qanday test holatlarini yozardingiz?
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Ma'lumotlar bazasi katta, indekslar qurildi, reja ko'rib chiqildi — optimallashtirish uchun yana nima qilish mumkin?
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Jamoangizda dasturiy ta'minotni ishlab chiqish va joriy etish bosqichlari qanday bo'ldi?
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Springda (kod vazifasi) mavjudlik turiga qarab dinamik xizmat tanlash uchun Strategy shablonini qanday amalga oshirish mumkin?
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HashMap bilan ishlashda bir vaqtning o'zida kirish muammolarini oldini olish uchun qanday variantlar mavjud?
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Hibernate'da qanday keshlar mavjud?
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import java.util.Arrays; import java.util.HashMap; import java.util.Map; public class badCounter { public static Map<String, Integer> mapOfBadNames = new HashMap<>(); protected void doProcessing(String filePath) throws IOException { try { FileInputStream fis = new FileInputStream(filePath); BufferedReader br = new BufferedReader(new InputStreamReader(fis)); while((br.readLine())!=null){ processWords(br.readLine()); } br.close(); fis.close(); } catch (IOException | NullPointerException ex) { System.out.println(ex.getMessage()); } } private void processWords(String line) { Arrays.stream(line.split(" ")) .map(String::trim) .forEach(word -> { if(mapOfBadNames.containsKey(word)){ mapOfBadNames.put(word, mapOfBadNames.get(word)+1); } else{ mapOfBadNames.put(word, 1); } }); } public void writeResultToFile(String path) throws IOException { try { PrintWriter out = new PrintWriter(path); out.println("word,frequency"); for(Map.Entry<String, Integer> entry : mapOfBadNames.entrySet()){ out.println(entry.getKey() + "," + entry.getValue()); } out.close(); } catch (NullPointerException | IOException ex) { throw new RuntimeException("Error writing to file", ex); } } public boolean isEverythingFine() { return true; } public static void main(String[] args) { badCounter bcn = new badCounter(); try { bcn.doProcessing("bad_input.txt"); bcn.writeResultToFile("result.csv"); bcn.doProcessing("bad_input1.txt"); bcn.writeResultToFile("result1.csv"); } catch (IOException ex) { System.out.println("Something went wrong"); } } }
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108
Nima uchun yuqori yuk ostida ulanishlar havzasining hajmini oshirdingiz va bu umumiy so'rovlar sonini oshirishdan qanday farq qiladi?
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108