Я пытаюсь создать строку toString, чтобы напечатать детали моего массива. Я могу заставить его печатать так, как я хочу, чтобы он выглядел, выполнив a для l oop и используя строку печати с toString, но, очевидно, не получится, если я захочу использовать его в основной части моего кода.
Для контекста это то, что у меня есть для Card:
/**
* Constructor for the card. If damageDone and mana are negative they are replaced by 1
* (not the best solution but the good enough until we cover exception handling later in the
* semester). <br>
* My solution length: 8 lines
* @param manaCost - The amount of mana this spell costs to cast
* @param damageDone - The amount of damage done by this card
* @param name - the name of this card
*/
public Card(int manaCost, int damageDone, java.lang.String name) {
if (damageDone < 0) {
this.damageDone = 1;}
else {this.damageDone = damageDone;}
if (manaCost < 0) {
this.manaCost = 1;}
else {this.manaCost = manaCost;}
this.name = name;}
Это мой пример, этот фрагмент кода работает с тем, как я хочу, чтобы он выглядел, но на самом деле не возвращает результата:
public java.lang.String toString(){
int count = 0;
for (int index = 0; index < card.length; index++) {
count++;
System.out.println(count + ": " + card[index]);
}
return "";}
Итак, я пытался создать строковый метод, но он не дал результатов, я так запутался. Кто-нибудь понял, где я иду не так.
@Override
public java.lang.String toString(){
String output = "";
for (int index = 0; index < card.length; index++) {
output = output + card[index];
}
return output;}
Полный класс, над которым я работаю, ниже, у меня все еще есть проблемы в других областях, через которые я работаю:
public class Deck {
private Card[] card = new Card[100];
private int cardsRunning = 100;
static int DECKSIZE = 100;
static java.lang.String emailID = "MITNY013";
private boolean random = true;
/**
* Constructor for the Deck. Adds the following cards to the deck in the following order
* 4x Super Lucky Strike, Damage 100, Mana 2
* 6x Mega Santa Hit, Damage 80, Mana 2
* 10x Critical Hit, Damage 50, Mana 5
* 10x Massive Strike, Damage 40, Mana 7
* 15x Wrong Way Down A One Way Street, Damage 30, Mana 10
* 15x Bender Rules Here, Damage 15, Mana 10
* 40x Trade, Damage 5, Mana 5 <br>
* My solution length: 16 lines (space lines not included)
* @param random - Whether to turn on random features
*/
public Deck(boolean random) {
for (int index = 0; index <= 3; index++) {
card[index] = new Card( 2, 100, "Lucky Strike");
}
for (int index = 4; index <= 10; index++) {
card[index] = new Card( 2, 80, "Santa Hit");
}
for (int index = 11; index <= 20; index++) {
card[index] = new Card( 5, 50, "Critical Hit");
}
for (int index = 21; index <= 30; index++) {
card[index] = new Card ( 7, 40, "Massive Strike");
}
for (int index = 31; index <= 45; index++) {
card[index] = new Card( 10, 30, "Wrong Way Down A One Way Street");
}
for (int index = 46; index <= 60; index++) {
card[index] = new Card( 10, 15, "Bender Rules Here");
}
for (int index = 61; index <= 99; index++) {
card[index] = new Card( 5, 5, "Trade");
}
}
/**
* Returns a string representation of the entire deck in the format
* Deck [ 1:Card [name=Super Lucky Strike, manaCost=2, damageDone=100]
* 2:Card [name=Super Lucky Strike, manaCost=2, damageDone=100]
* 3:Card [name=Super Lucky Strike, manaCost=2, damageDone=100]
* 4:Card [name=Super Lucky Strike, manaCost=2, damageDone=100]] <br>
* My solution length: 7 lines
* @overrides - toString in class java.lang.Object
*/
@Override
public java.lang.String toString(){
String output = "";
for (int index = 0; index < card.length; index++) {
output = output + card[index];
}
return output;}
/**
* Uses a random number generator to get a card from the deck somewhere then swaps the
* last card in the deck to that position and reduces the cardsRemaining by one.
* This is important. if the random flag is false you should always get the card at
* position 0. When you swap the card out you should also set the old position to null
* for safety. <br>
* My solution length: 10 lines
* @return - the card drawn or null if no cards left in deck
*/
public Card getRandomCard() {
// use random number generator
Random rand = new Random();
int randomCardNo = rand.nextInt(getCardsRemaining());
removeCard(randomCardNo);
return card[randomCardNo];
}
/**
* Return the number of cards remaining in the deck.
* My solution length: 6 lines
* @return - the total cards remaining
*/
public int getCardsRemaining() {
int temp = 100;
for (int index = 0; index < card.length; index++) {
if ((card[index] == null) ) {
temp = temp -1;
}}
cardsRunning = temp;
return cardsRunning;}
/**
* BONUS Method
* My solution length: XXX
* @return - shuffle cards in deck
*/
public void shuffle(Card[] card) {
int index;
Card temp;
Random random = new Random();
for (int i = card.length - 1; i > 0; i--){
index = random.nextInt(i + 1);
temp = card[index];
card[index] = card[i];
card[i] = temp;}}
private void removeCard(int no) {
int size = card.length;
Card[] newCard = new Card[size];
int index = 0;
for (int i = 0; i < size; i++) {
if (card[i] != null) {
newCard[index++] = card[i];
}
}
}
}