このコードを実行して合計が 100 を超える数値を入力すると、カウントと合計の出力は正しいのですが、平均が間違っています。例えば; 入力 8,10,99... カウントは 3、合計は 117 で、平均 39 を返す必要があります...返される実際の出力は、カウント 3、合計 117、平均 58.5 です。これは、平均が 3 ではなく 2 のカウントを使用して行われているためであることに気付きました (または、異なる値を使用する場合は常に 1 少ない値になります)。どうしてこれなの?入力合計<= 100に最適です。助けてください :)
public static void main(String[] args) {
//Use Main Method for gathering input
float input = 1;
// Declare variable for sum
float theSum = 0;
// Declare variable for average
float average = 0;
// Declare variable for counting the number of user inputs
int counter = 0;
/* Initialize the while loop using an input of 0 as a sentinel value
* to exit the loop*/
while (input != 0) {
// Use JOptionPane method to accept input from user
input = Float.parseFloat(
JOptionPane.showInputDialog(
null, "Please enter a number. Enter 0 to quit: "));
// Invoke sum method and pass input and summation to sum method
theSum = (sum(input, theSum));
// Invoke avg method and pass summation and counter to avg
average = (avg(theSum, counter));
// Increment the counter variable
counter++;
if (theSum > 100)
{
JOptionPane.showMessageDialog(null, "The sum of your numbers "
+ "are greater than 100!");
break;
}
}
// Invoke display method and pass summation, average, and counter variables to it
display(theSum, average, counter);
}
public static float sum(float num1, float sum) {
//Add the user's input number to the sum variable
sum += num1;
//Return value of sum variable as new summation variable
return sum;
}
public static float avg(float num1, int num2) {
//Declare and initialize variable for average
float average = 0;
//Calculate average
average = num1 / num2;
//Return value of average variable
return average;
}
public static void display(float sum, float average, int counter) {
/* I am subtracting 1 from variable counter so as not to include the sentinel value
* of 0 that the user had to enter to exit the input loop in the overall count*/
// Display the count, sum, and average to the user
if (sum > 100) {
JOptionPane.showMessageDialog(null, "Count = " + (counter) + ", Sum = " + sum + ", Average = " + average);
}
if (sum <= 100) {
JOptionPane.showMessageDialog(null, "Count = " + (counter - 1) + ", Sum = " + sum + ", Average = " + average);
}
}
}