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How to randomly select elements from an array?
Hello!
There is a class in which there are two arrays (card suit and value)
I can’t make it so that I randomly select suits and value and enter on the screen
something like this should be:
K ♠, 2 ♦, Q♥, A♣
Подскажите пожалуйста что я делаю не так?
public class Card {
private String[] values = {"2", "3", "4", "5", "6", "7", "8", "9", "10",
"J", "Q", "K", "A"};
private String[] suit = {"\u2660", "\u2665", "\u2666", "\u2663"};
// метод для подбора масти
public void getSuit(){
int randomSuit = new Random().nextInt(suit.length);
switch (randomSuit){
case 0: System.out.print("\u2660" );
break;
case 1: System.out.print("\u2665");
break;
case 2: System.out.print("\u2666");
break;
case 3: System.out.print("\u2663");
break;
}
}
// метод для подбора 4 случайных значений из массива values
void getValues(){
Random random = new Random();
int numberOfElements = 4;
for (int i = 0; i < numberOfElements; i++){
int randomIndex = random.nextInt(values.length);
System.out.print(randomIndex);
}
}
void displayCard(){
getSuit();
getValues();
}
}
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1. Arrays are declared, but their values are not used.
2. You get four random numbers and simply display them on the screen, again without using the values from the array.
3. The business logic of the class is not clear, but is it clear what it should display, a map? Suit? Meaning?
4. You need a loop that will get one suit and one value.
Well, the answer to the question. Random elements from arrays are obtained like this:
private void getSuit() {
int randomSuit = new Random().nextInt(suit.length);
System.out.print(suit[randomSuit]);
}
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