Java 随机化字符串数组并显示所有值

我正在玩纸牌游戏，我已经到了洗牌时间

我必须洗牌几张牌（之前从用户那里选择的牌，所以它们的数量并不总是相同的），然后一张一张地显示给用户

因为我还在开发游戏的逻辑，所以我通过改变按钮文本来显示卡片的名称

但是，当我试图获取卡片的名称并将它们设置为按钮的文本时，我被卡住了

发生了什么是我得到了一个空白按钮，还是仅仅用“泥瓦匠”或“村民”字符串。事实上，如果我检查日志，我会看到所有其他卡（字符）显示为“空”

这就是我努力实现目标的方式（是的，我是个新手）：

这是头：

int demoniac;
int guard;
int masons;
int medium;
int mythomaniac;
int owl;
int villager;
int werehamster;
int all;
int i;
int t;
String[] characters = new String[24];
Button randomButton;

public void addAll(){
for(i = 0; i < all; i++){
    add(demoniac, "Demoniac");
    add(guard, "Guard");
    add(medium, "Medium");
    add(mythomaniac, "Mythomaniac");
    add(owl, "Owl");
    add(werehamster, "Werehamster");
    add(villager, "Villager");
    add(masons, "Masons");
   }

}

public int add(int character, String name){
    if(character != 0 && name == "Villager"){
        for(t = 0; t < character; t++){
            i+=t;
            characters[i] = name;}
    }
    else if(character == 2 && name == "Masons"){
        characters[i] = name;
        i++;
        characters[i] = name;
        Toast.makeText(randomSelection.this, "works", Toast.LENGTH_SHORT).show();
    }else if(character != 0){
        characters[i] = name;
    }
    return i;
}

 public void randomize(){
    Collections.shuffle(Arrays.asList(characters));
    for (int s = 1; s < characters.length; s++)
    {
        System.out.println(characters[s]);
    }

}

public void show(View view){
    for (int s = 1; s < characters.length; s++)
    {
        randomButton.setText(characters[s]);
    }
}

我添加所有卡片（字符）的方法：

int demoniac;
int guard;
int masons;
int medium;
int mythomaniac;
int owl;
int villager;
int werehamster;
int all;
int i;
int t;
String[] characters = new String[24];
Button randomButton;

public void addAll(){
for(i = 0; i < all; i++){
    add(demoniac, "Demoniac");
    add(guard, "Guard");
    add(medium, "Medium");
    add(mythomaniac, "Mythomaniac");
    add(owl, "Owl");
    add(werehamster, "Werehamster");
    add(villager, "Villager");
    add(masons, "Masons");
   }

}

public int add(int character, String name){
    if(character != 0 && name == "Villager"){
        for(t = 0; t < character; t++){
            i+=t;
            characters[i] = name;}
    }
    else if(character == 2 && name == "Masons"){
        characters[i] = name;
        i++;
        characters[i] = name;
        Toast.makeText(randomSelection.this, "works", Toast.LENGTH_SHORT).show();
    }else if(character != 0){
        characters[i] = name;
    }
    return i;
}

 public void randomize(){
    Collections.shuffle(Arrays.asList(characters));
    for (int s = 1; s < characters.length; s++)
    {
        System.out.println(characters[s]);
    }

}

public void show(View view){
    for (int s = 1; s < characters.length; s++)
    {
        randomButton.setText(characters[s]);
    }
}

public void addAll（）{
对于（i=0；i

我添加和管理各种类型卡（字符）的方法：

int demoniac;
int guard;
int masons;
int medium;
int mythomaniac;
int owl;
int villager;
int werehamster;
int all;
int i;
int t;
String[] characters = new String[24];
Button randomButton;

public void addAll(){
for(i = 0; i < all; i++){
    add(demoniac, "Demoniac");
    add(guard, "Guard");
    add(medium, "Medium");
    add(mythomaniac, "Mythomaniac");
    add(owl, "Owl");
    add(werehamster, "Werehamster");
    add(villager, "Villager");
    add(masons, "Masons");
   }

}

public int add(int character, String name){
    if(character != 0 && name == "Villager"){
        for(t = 0; t < character; t++){
            i+=t;
            characters[i] = name;}
    }
    else if(character == 2 && name == "Masons"){
        characters[i] = name;
        i++;
        characters[i] = name;
        Toast.makeText(randomSelection.this, "works", Toast.LENGTH_SHORT).show();
    }else if(character != 0){
        characters[i] = name;
    }
    return i;
}

 public void randomize(){
    Collections.shuffle(Arrays.asList(characters));
    for (int s = 1; s < characters.length; s++)
    {
        System.out.println(characters[s]);
    }

}

public void show(View view){
    for (int s = 1; s < characters.length; s++)
    {
        randomButton.setText(characters[s]);
    }
}

public int add（int字符、字符串名称）{
如果（字符！=0&&name==“村民”）{
for（t=0；t

随机化：

int demoniac;
int guard;
int masons;
int medium;
int mythomaniac;
int owl;
int villager;
int werehamster;
int all;
int i;
int t;
String[] characters = new String[24];
Button randomButton;

public void addAll(){
for(i = 0; i < all; i++){
    add(demoniac, "Demoniac");
    add(guard, "Guard");
    add(medium, "Medium");
    add(mythomaniac, "Mythomaniac");
    add(owl, "Owl");
    add(werehamster, "Werehamster");
    add(villager, "Villager");
    add(masons, "Masons");
   }

}

public int add(int character, String name){
    if(character != 0 && name == "Villager"){
        for(t = 0; t < character; t++){
            i+=t;
            characters[i] = name;}
    }
    else if(character == 2 && name == "Masons"){
        characters[i] = name;
        i++;
        characters[i] = name;
        Toast.makeText(randomSelection.this, "works", Toast.LENGTH_SHORT).show();
    }else if(character != 0){
        characters[i] = name;
    }
    return i;
}

 public void randomize(){
    Collections.shuffle(Arrays.asList(characters));
    for (int s = 1; s < characters.length; s++)
    {
        System.out.println(characters[s]);
    }

}

public void show(View view){
    for (int s = 1; s < characters.length; s++)
    {
        randomButton.setText(characters[s]);
    }
}

public void randomize（）{
集合.shuffle（数组.asList（字符））；
for（int s=1；s

每次用户单击按钮时显示不同卡片（字符）的方法：

int demoniac;
int guard;
int masons;
int medium;
int mythomaniac;
int owl;
int villager;
int werehamster;
int all;
int i;
int t;
String[] characters = new String[24];
Button randomButton;

public void addAll(){
for(i = 0; i < all; i++){
    add(demoniac, "Demoniac");
    add(guard, "Guard");
    add(medium, "Medium");
    add(mythomaniac, "Mythomaniac");
    add(owl, "Owl");
    add(werehamster, "Werehamster");
    add(villager, "Villager");
    add(masons, "Masons");
   }

}

public int add(int character, String name){
    if(character != 0 && name == "Villager"){
        for(t = 0; t < character; t++){
            i+=t;
            characters[i] = name;}
    }
    else if(character == 2 && name == "Masons"){
        characters[i] = name;
        i++;
        characters[i] = name;
        Toast.makeText(randomSelection.this, "works", Toast.LENGTH_SHORT).show();
    }else if(character != 0){
        characters[i] = name;
    }
    return i;
}

 public void randomize(){
    Collections.shuffle(Arrays.asList(characters));
    for (int s = 1; s < characters.length; s++)
    {
        System.out.println(characters[s]);
    }

}

public void show(View view){
    for (int s = 1; s < characters.length; s++)
    {
        randomButton.setText(characters[s]);
    }
}

公共作废显示（视图）{
for（int s=1；s

编辑：

int demoniac;
int guard;
int masons;
int medium;
int mythomaniac;
int owl;
int villager;
int werehamster;
int all;
int i;
int t;
String[] characters = new String[24];
Button randomButton;

public void addAll(){
for(i = 0; i < all; i++){
    add(demoniac, "Demoniac");
    add(guard, "Guard");
    add(medium, "Medium");
    add(mythomaniac, "Mythomaniac");
    add(owl, "Owl");
    add(werehamster, "Werehamster");
    add(villager, "Villager");
    add(masons, "Masons");
   }

}

public int add(int character, String name){
    if(character != 0 && name == "Villager"){
        for(t = 0; t < character; t++){
            i+=t;
            characters[i] = name;}
    }
    else if(character == 2 && name == "Masons"){
        characters[i] = name;
        i++;
        characters[i] = name;
        Toast.makeText(randomSelection.this, "works", Toast.LENGTH_SHORT).show();
    }else if(character != 0){
        characters[i] = name;
    }
    return i;
}

 public void randomize(){
    Collections.shuffle(Arrays.asList(characters));
    for (int s = 1; s < characters.length; s++)
    {
        System.out.println(characters[s]);
    }

}

public void show(View view){
    for (int s = 1; s < characters.length; s++)
    {
        randomButton.setText(characters[s]);
    }
}

我注意到了我所做的无意义的

循环，顺便说一句你应该知道尽管大多数角色只有一个（恶魔、守卫等）有两个泥瓦匠和5到12个村民，因此我们需要检索这些
int
s，并将
String
s添加到
数组中
int
s中

示例：如果我得到6个
Villager
s，我必须将
字符串
“Villager”添加到
字符串数组中6次

然后我将
s
值设置为1，因为我必须显示第一个
String
（
[0]
）一旦启动了
活动
，OnCreate（）方法也是如此

也许我错了，如果是的话，请你纠正我
 您只是显示您添加的最后一个字符名
换成这个

public void show(View view){
    Random r = new Random(System.currentTimeMillis());
    randomButton.setText(characters[r.nexInt(characters.length)])
}

得到一个空白按钮，或者只是“泥瓦匠”或“村民”字符串

这是因为您只使用列表的最后一个元素设置按钮的文本。它是
null
或
“泥瓦匠”
（不知道它怎么可能是
“村民”
）

然后


我不清楚
add（int-character，String-name）
方法返回了什么，但是如果您解释一下，我会更新这个答案

我相信这段代码实现了您试图实现的大部分目标

// Where the characters are stored
private ArrayList<String> characters;

public void initDeck() {
    if (characters == null)
        characters = new ArrayList<String>();
    // Extract the numbers if you actually need them, otherwise, they just are constants
    addCharacter("Demoniac", 1, characters);
    addCharacter("Guard", 1, characters);
    addCharacter("Medium", 1, characters);
    addCharacter("Mythomaniac", 1, characters);
    addCharacter("Owl", 1, characters);
    addCharacter("Werehamster", 1, characters);
    addCharacter("Villager", 5, characters);
    addCharacter("Masons", 1, characters);
}

public void addCharacter(String name, int amount, ArrayList<String> cards) {
    if (amount < 0) {
        throw new IllegalArgumentException("Must add a non-negative number of characters for " + name);
    }

    // Don't use '==' for Strings
    if (name.equals("Villager")) {
        if (amount != 5 || amount != 12) {
            throw new IllegalArgumentException("There can only be 5 or 12 " + name);
        }
    }

    for (int i = 0; i < amount; i++) {
        cards.add(name);
    }
}

public int searchCharacters(String character, ArrayList<String> cards) {
    return cards.indexOf(character);
}

public Map<String, Integer> getAllCharacterPositions() {
    Map<String, Integer> allPositions = new LinkedHashMap<String, Integer>();
    for (int i = 0; i < characters.size(); i++) {
        allPositions.put(characters.get(i), i);
    }
    return allPositions;
}

void run() {
    // initialize the characters
    initDeck();

    // shuffle them
    Collections.shuffle(characters);

    // print them all out
    for (int i = 0; i < characters.size(); i++) {
        System.out.printf("%d: %s\n", i, characters.get(i));
    }

    // Find the position of a character
    System.out.println();
    String findCharacter = "Owl";
    // Option 1 -- always linear search lookup
    System.out.printf("%d: %s\n", searchCharacters(findCharacter, characters), findCharacter);
    // Option 2 -- one-time linear scan, constant lookup
    Map<String, Integer> positions = getAllCharacterPositions();
    System.out.printf("%d: %s\n", positions.get(findCharacter), findCharacter);

    // Get a random character
    System.out.println();
    Random rand = new Random(System.currentTimeMillis());
    int randPos = rand.nextInt(characters.size());
    System.out.printf("%d: %s\n", randPos, characters.get(randPos));

    // randomButton.setText(characters.get(randPos));
}

//存储字符的位置
私有数组列表字符；
公共甲板（）{
如果（字符==null）
characters=newarraylist（）；
//如果您确实需要这些数字，请提取它们，否则它们只是常量
添加字符（“恶魔”，1个字符）；
添加字符（“保护”，1个字符）；
添加字符（“中等”，1个字符）；
addCharacter（“Mythomaniac”，1，characters）；
添加字符（“猫头鹰”，1个字符）；
添加字符（“Werehamster”，1个字符）；
添加字符（“村民”，5个字符）；
添加字符（“石匠”，1个字符）；
}
public void addCharacter（字符串名称、整数金额、ArrayList卡）{
如果（金额<0）{
抛出新的IllegalArgumentException（“必须为“+名称”添加非负数字符）；
}
//不要对字符串使用“==”
如果（姓名等于（“村民”））{
如果（金额！=5 | |金额！=12）{
抛出新的IllegalArgumentException（“只能有5或12”+名称）；
}
}
对于（int i=0；i