Java：不兼容類型（int /布爾值）

Question

import java.io.*; 
public class AdamHmwk4 { 
    public static void main(String [] args) throws IOException { 
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 

     int counter1; 
     int counter2; 
     int counter3; 
     String answer = ""; 

     System.out.println("Welcome to Adam's skip-counting program!"); 
     System.out.println("Please input the number you would like to skip count by."); 
     counter1 = Integer.parseInt(br.readLine()); 

     System.out.println("Please input the number you would like to start at."); 
     counter2 = Integer.parseInt(br.readLine()); 

     System.out.println("Please input the number you would like to stop at."); 
     counter3 = Integer.parseInt(br.readLine()); 

     System.out.println("This is skip counting by" + counter1 + ", starting at" + counter2 + "and ending at" + counter3 +":"); 

     while (counter2 = counter3) { 
      counter2 = counter2 + counter1; 
      counter3 = counter2 + counter1; 
     } 
    } 
} 

我正在嘗試跳過計數程序。當我編譯此代碼時，行while(counter2 = counter3){顯示爲不兼容類型錯誤。編譯器說它找到了一個「int」，但它需要一個「布爾」。請記住，我是一個新手，所以我還沒有在我的Java類中學過布爾值。

Answer 1

您無法將值與=（作爲賦值運算符）進行比較。使用==來比較您的值。更改

while(counter2 = counter3){ 

到

while(counter2 == counter3){ 

這裏是一個introductory page for Java operators。

Answer 2

您使用賦值運算符：

while(counter2 = counter3) 

，而不是平等的經營者：

while(counter2 == counter3) 

Answer 3

現在的問題是：

   while(counter2 = counter3) 

=用於分配和張貼此語句，counter2將被分配counter3的值。因此你的while循環不會按照你想要的方式行事。您需要使用==來將計數器2與計數器3進行比較

   while(counter2 == counter3)