Java 不兼容类型:“;int[]变量无法转换为ArrayList<;字符串>&引用;
目标:在5次猜测中排除所有计算机网络通信,你将获得你的ie猜测表现的评分Java 不兼容类型:“;int[]变量无法转换为ArrayList<;字符串>&引用;,java,arraylist,Java,Arraylist,目标:在5次猜测中排除所有计算机网络通信,你将获得你的ie猜测表现的评分 import java.util.Scanner; import java.util.ArrayList; class DotCom { private ArrayList<String> locationCells; // to hold the location cells public void setLocationCells(ArrayList<String
import java.util.Scanner;
import java.util.ArrayList;
class DotCom
{
private ArrayList<String> locationCells; // to hold the location cells
public void setLocationCells(ArrayList<String> loc) //setter method that takes an int array(which has three cell locations as ints(2,3,4,etc))
{
locationCells = loc;
}
public String checkYourself(String userInput) //method that takes a String for the user's Input("1","3",etc).checks it and returns a result representing a "hit","miss" or "kill".
{
String result = "miss"; //when you miss hit the randomNum value generated
int index = locationCells.indexOf(userInput); //checks the index of the userInput(user's Input),from the locationCells and Stores the value in index int variable
if(index >= 0)
{
locationCells.remove(index); //removes the index position(user's guess)from the array,so that the same value don't get accepted again
if(locationCells.isEmpty()) //if locationCells array goes empty
{
result = "kill"; // when you hit all the three randomNum values
}
else
{
result = "hit"; //when you hit the randomNum value
}
}
System.out.println(result); //print result
return result;
}
}
class DotComTestDrive
{
public static void main(String []args)
{
Scanner user_input = new Scanner(System.in);
int numOfGuesses = 0; //for storing user guesses
DotCom dot = new DotCom(); //dot com instance variable
int randomNum = (int)(Math.random()*5); //to get a random value as an int variable and store in randomNum variable
int[] location = {randomNum,randomNum+1,randomNum+2}; //
dot.setLocationCells(location);
boolean isAlive = true;
while(isAlive == true && numOfGuesses < 6)
{
System.out.println("Enter Your Guess : ");
String userInput = user_input.next(); //take user input(user's guess)
String result = dot.checkYourself(userInput);
numOfGuesses++;
if(result.equals("kill"))
{
isAlive = false;
System.out.println("You Took " + numOfGuesses + " guesses");
}
}
}
}
设置:当程序启动时,计算机会在虚拟7X1网格上放置三个点com。完成后,游戏会询问您的第一个猜测
工作原理:整个过程在命令行上运行,计算机会要求您输入一个猜测(一个单元格),您将在命令行上键入“0”、“2”等。根据您的猜测,您将在命令行上看到一个结果,“命中”、“未命中”或“杀死”,当你被杀死时,游戏结束打印你杀死的猜测数,即变量numOfGuesses的值
import java.util.Scanner;
import java.util.ArrayList;
class DotCom
{
private ArrayList<String> locationCells; // to hold the location cells
public void setLocationCells(ArrayList<String> loc) //setter method that takes an int array(which has three cell locations as ints(2,3,4,etc))
{
locationCells = loc;
}
public String checkYourself(String userInput) //method that takes a String for the user's Input("1","3",etc).checks it and returns a result representing a "hit","miss" or "kill".
{
String result = "miss"; //when you miss hit the randomNum value generated
int index = locationCells.indexOf(userInput); //checks the index of the userInput(user's Input),from the locationCells and Stores the value in index int variable
if(index >= 0)
{
locationCells.remove(index); //removes the index position(user's guess)from the array,so that the same value don't get accepted again
if(locationCells.isEmpty()) //if locationCells array goes empty
{
result = "kill"; // when you hit all the three randomNum values
}
else
{
result = "hit"; //when you hit the randomNum value
}
}
System.out.println(result); //print result
return result;
}
}
class DotComTestDrive
{
public static void main(String []args)
{
Scanner user_input = new Scanner(System.in);
int numOfGuesses = 0; //for storing user guesses
DotCom dot = new DotCom(); //dot com instance variable
int randomNum = (int)(Math.random()*5); //to get a random value as an int variable and store in randomNum variable
int[] location = {randomNum,randomNum+1,randomNum+2}; //
dot.setLocationCells(location);
boolean isAlive = true;
while(isAlive == true && numOfGuesses < 6)
{
System.out.println("Enter Your Guess : ");
String userInput = user_input.next(); //take user input(user's guess)
String result = dot.checkYourself(userInput);
numOfGuesses++;
if(result.equals("kill"))
{
isAlive = false;
System.out.println("You Took " + numOfGuesses + " guesses");
}
}
}
}
import java.util.Scanner;
导入java.util.ArrayList;
类网络公司
{
private ArrayList locationCells;//用于保存位置单元格
public void setLocationCells(ArrayList loc)//采用int数组的setter方法(该数组有三个单元格位置作为int(2,3,4等))
{
locationCells=loc;
}
publicstringcheckyourself(stringuserinput)//将字符串作为用户输入(“1”、“3”等)的方法。检查该字符串并返回表示“命中”、“未命中”或“杀死”的结果。
{
String result=“miss”;//未命中时,单击生成的randomNum值
int index=locationCells.indexOf(userInput);//从locationCells检查userInput(用户输入)的索引,并将值存储在index int变量中
如果(索引>=0)
{
locationCells.remove(index);//从数组中删除索引位置(用户的猜测),以便不再接受相同的值
if(locationCells.isEmpty())//如果locationCells数组为空
{
result=“kill”//当您点击所有三个randomNum值时
}
其他的
{
result=“hit”//当您点击randomNum值时
}
}
System.out.println(结果);//打印结果
返回结果;
}
}
类DotComTestDrive
{
公共静态void main(字符串[]args)
{
扫描仪用户输入=新扫描仪(System.in);
int numOfGuesses=0;//用于存储用户猜测
DotCom dot=new DotCom();//DotCom实例变量
int randomNum=(int)(Math.random()*5);//获取随机值作为int变量并存储在randomNum变量中
int[]location={randomNum,randomNum+1,randomNum+2}//
dot.setLocationCells(位置);
布尔值=真;
while(isAlive==true&&numfoguesses<6)
{
System.out.println(“输入您的猜测:”);
字符串userInput=user_input.next();//获取用户输入(用户猜测)
字符串结果=dot.checkYourself(userInput);
numOfGuesses++;
if(result.equals(“kill”))
{
isAlive=假;
System.out.println(“您接受了”+numOfGuesses+“guesses”);
}
}
}
}
“int[]变量无法转换为ArrayList”获取以下行“dot.setLocationCells(location);”的上述错误“您的setLocationCells(ArrayList loc)将ArrayList作为参数,您正试图在其中发送int[]。因此出现错误您需要将
int[]
转换为ArrayList
,因为您的方法参数要求的是ArrayList
,而不是int[]
。为此,请执行以下操作:
private List<String> convertIntArr(int[] input) {
List<String> output = new ArrayList<>(input.length);
for (int x : input) {
output.add(String.valueOf(x));
}
return output;
}
private List convertIntArr(int[]输入){
列表输出=新的ArrayList(input.length);
for(int x:输入){
add(String.valueOf(x));
}
返回输出;
}
测试时输入
int[]
作为{1,2,3}
,输出List
作为[1,2,3]
,如注释中所述,您试图为以字符串数组列表作为参数的函数提供一个int数组
我不知道哪一种是正确的类型,但无论哪种方式,您都需要提供正确的类型。如果函数确实应该采用ArrayList
(从代码的其余部分来看,这似乎是可能的),那么应该替换该行
int[] location = {randomNum,randomNum+1,randomNum+2};
与
ArrayList location=new ArrayList();
add(String.valueOf(randomNum));
add(String.valueOf(randomNum+1));
add(String.valueOf(randomNum+2));
您的setLocationCells函数接受一个ArrayList
,但您给它一个int[]
。您的注释表示该函数接受int[]
,因此您可能应该将参数更改为int[]
。您还需要将locationCells
设置为int[]
是的,错误信息似乎相当清楚-您预期会发生什么?你知道int[]
和ArrayList
是完全不同的类型吗?疯狂缩进是怎么回事?@khelwood我见过你多次询问“疯狂意图”。虽然我必须承认我觉得这有点可笑,但我不认为这真的算得上是“关注帖子,而不是人。这包括那些即使在帖子上使用也会让人觉得很私人的术语(比如“懒惰”、“无知”或“发牢骚”)。“疯狂”感觉就像是属于我的。也许只是考虑放弃它吧?我们对你的游戏并不感兴趣。如果您有与编程相关的问题,请提问,并提供相关代码(而不是完整的“游戏”)。请提出解决方案。你只是在重复问题中的错误。