Java while循环中的方法
具体地说，在while循环中有一些逻辑区域不允许程序正确流动。我已经走过了这个循环，它应该会起作用。我遇到的一些错误是，当我输入“0”时，它不会立即退出，换句话说，我必须按两次0，这对我来说没有意义，除非我没有正确理解while循环。另一个错误是在add（）方法中，无论我输入什么，它都只告诉我输入的第一个数字。所以我相当肯定这个错误在我的循环中，但我看不出逻辑错误是从哪里来的。任何帮助都将不胜感激，谢谢Java while循环中的方法,java,methods,while-loop,Java,Methods,While Loop,具体地说，在while循环中有一些逻辑区域不允许程序正确流动。我已经走过了这个循环，它应该会起作用。我遇到的一些错误是，当我输入“0”时，它不会立即退出，换句话说，我必须按两次0，这对我来说没有意义，除非我没有正确理解while循环。另一个错误是在add（）方法中，无论我输入什么，它都只告诉我输入的第一个数字。所以我相当肯定这个错误在我的循环中，但我看不出逻辑错误是从哪里来的。任何帮助都将不胜感激，谢谢 import javax.swing.JOptionPane; public class
import javax.swing.JOptionPane;
public class RandyGilmanP2 {//Begin class
public static void main(String[] args) {//Begin main
JOptionPane.showMessageDialog(null, "Hello Welcome to Sum and Average"
+ "\n of a Number Calculator Program"
+ "\n By: Randy Gilman");
//Declare variables
float add = 0;//used to store the sum of the numbers inputed
float numb = input();//used to store the value of Input() method
float average;
int count = 0;// Used as a counter variable
//Loop that will be controlled by a sentenil value
while (numb != 0) {//Begin for loop
count += 1;
//Call Input method
input();
numb = input();
//Method to find the sum of all the numbers inputed
sum(add,numb);
add = sum(add,numb);
//Used to find the average of all the numbers entered (sum / count)
}//End for loop
avg(add,count);
average = avg(add,count);//used to store the average of the numbers
Results(count,add,average);
}//End Main
public static float input(){//Begin Method
//Will keep gathering input from user until input is equal to 0
String NumberString = JOptionPane.showInputDialog("Enter a floating point number"
+ "(The program ends when 0 is entered):");
//Convert string to float
float number = Float.parseFloat(NumberString);
return number;
}//End Method
public static float sum(float sum, float numb2){//Begin method
//Add number to the previous number to compute total
sum += numb2;
if (sum > 100)
JOptionPane.showMessageDialog(null, "***WARNING***" + "\n The sum of your numbers exceed 100");
return sum;
}//End Method
public static float avg(float num1, float num2){
//Declare variables
float result;
//Preform calculation of average
result = num1 / num2;
return result;
}//End Method
public static void Results(int counter, float addition, float aver){//Begin method
//Declare variables
JOptionPane.showMessageDialog(null,"The total amount of numbers you entered are: " + counter);
JOptionPane.showMessageDialog(null,"The sum of the numbers you have entered is: " + addition);
JOptionPane.showMessageDialog(null,"The average of the numbers you have entered is: " + aver);
}//End Method
}//End Class
这是我认为你不想要的东西：
//Call Input method
input();
numb = input();
（而且您没有“添加”方法）这是我认为您不想要的：
//Call Input method
input();
numb = input();
（而且您没有“add”方法）据我所见，您应该在循环中只调用一次“input（）”。你打了两次电话——也就是说
input();
numb = input();
您也不需要执行“sum（add，numb）；”两次，所以去掉“sum（add，numb）；”行，只需使用“add=sum（add，numb）；” 据我所见，您应该在循环中只调用一次“input（）”。你打了两次电话——也就是说
input();
numb = input();
您也不需要执行“sum（add，numb）；”两次，所以去掉“sum（add，numb）；”行，只需使用“add=sum（add，numb）；” 您请求输入，然后将其丢弃
//in the initialization you do:...
float numb = input();//used to store the value of Input() method
//and in the loop you do it again, overwrite the first input
numb = input();
while (numb != 0) {//Begin for loop
count += 1;
//Call Input method
input(); <<-- 1. should be removed, input goes nowhere
numb = input();
//Method to find the sum of all the numbers inputed
sum(add,numb); <<-- 2. should be removed, output goes nowhere
add = sum(add,numb);
//Used to find the average of all the numbers entered (sum / count)
}//End for loop
avg(add,count); <<-- 3. why do you keep repeating??
average = avg(add,count);//used to store the average of the numbers
（（a/b*b）-a）0.0000000000 1因为现在可以与用户输入进行比较，但是如果要检查计算的输出，请记住浮点计算是不精确的您请求输入，然后将其丢弃
//in the initialization you do:...
float numb = input();//used to store the value of Input() method
//and in the loop you do it again, overwrite the first input
numb = input();
while (numb != 0) {//Begin for loop
count += 1;
//Call Input method
input(); <<-- 1. should be removed, input goes nowhere
numb = input();
//Method to find the sum of all the numbers inputed
sum(add,numb); <<-- 2. should be removed, output goes nowhere
add = sum(add,numb);
//Used to find the average of all the numbers entered (sum / count)
}//End for loop
avg(add,count); <<-- 3. why do you keep repeating??
average = avg(add,count);//used to store the average of the numbers
（（a/b*b）-a）0.0000000000 1因为现在可以与用户输入进行比较，但是如果要检查计算的输出，请记住浮点计算是不精确的不能将浮点值与绝对值进行比较。舍入错误会使您绊倒。@Johan：除非
parseFloatparseFloat除了代码看起来很好之外除此之外，代码似乎很好