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Kaks klassi (Main ja Number). Mis prinditakse välja?
public class Main {
public static void main(String[] args) {
for (int i = 0; i < 10; i++) {
Number n = new Number(i++);
System.out.println(n.getValue());
}
}
}
public class Number {
private int value;
public Number(int value) {
this.value = value;
}
private int getValue() {
return value;
}
}
public class Fruit { int price = 10; public int getPrice() { return price; }}
public class Apple extends Fruit { @Override public int getPrice() { return super.getPrice() * 3 + super.getPrice(); }}
public class Main { public static void main(String[] args) { Fruit fruit = new Fruit(); Apple firstApple = new Apple(); Apple secondApple = new Apple(); System.out.println(fruit.getPrice() + firstApple.getPrice() + secondApple.getPrice()); }}
Mis on programmi väljund?
Mida prindib antud kood?
public static void main(String[] args) { int[] numbers = {8, 6, 4, 6, 9, 6}; printNumbers(numbers);}public void printNumbers(int[] numbers) { for (int number: numbers) { System.out.print(number); }}
public static int getSum() { int sum = 0; for (int a = 50; a >= 0; a--) { if (a % 10 == 0) { sum += 1; } if (a % 5 == 0) { sum -= 1; } } return sum;}
Mida tagastaks funktsioon välja kutsudes?
Mitu argumenti võtab objekti klassi equals() meetod?
// import ALL useful classes
import java.util.*;
class lamp {
int static count = 0;
public int id;
public static List<lamp> Lamps = new ArrayList<lamp>();
public lamp() {
if (Lamps.size() >= 10) {
throw new NullPointerException("It is impossible to have more than 10 lamps!");
}
// give every instance an unique id
this.id = count++;
Lamps.add(this);
}
public List<lamp> getLamps() {
// ensure user cannot change this list
return Collections.unmodifiableList(Lamps);
}
public static void main(String[] args) {
while (true) {
lamp m = new lamp();
System.out.println(m.id);
}}}
Mille vastu on koodi kirjutamisel eksitud (vali 5)?
Mida tagastab antud funktsioon?
public String loopAlphabet() { String alphabet = "abcdefghijklmnopqrstuvwxyz"; // 'a' ascii code is 97 String answ = ""; for (int i = 0; i < alphabet.length(); ++i) { int letter = (int) alphabet.charAt(i); if (letter % 2 != 0) answ += (char) letter; } return answ;}
Milline numbrijada on selle tsükli väljundiks?
for (int i = 0; i < 5; i++) { System.out.print(++i + i-- + " ");}
Abstraktsed klassid erinevad teistest klassidest selle poolest, et...
Vii koodijupp kokku selle tüüpilise tulemusega.
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