import javax.swing.JOptionPane;
public class ArrayOperations
{
public static void main(String[] args)
{
String[] numbers;
numbers = JOptionPane.showInputDialog("Enter your numbers: ");
int numbers1 = Integer.parseInt(numbers);
JOptionPane.ShowMessageDialog(null, "The sum of your numbers is: "
+ getTotal() + "\nThe average of your numbers is: " + getAverage()
+ "\nThe highest number was: " + getHighest + "The lowest number "
+ "was: " + getLowest());
}
public static double getTotal()
{
//Accumulate sum of elements in numbers1 array and return total
double total = 0.0;
for (int index = 0; index < numbers1.length; index++)
total += numbers1[index];
return total;
}
public static double getAverage()
{
//Get average
return getTotal() / numbers1.length;
}
public static double getHighest()
{
//Find highest number entered
double highest = numbers1[0];
for (int index = 1; index < numbers1.length; index++)
{
if (numbers1[index] > highest)
highest = numbers1[index];
}
return highest;
}
public static double getLowest()
{
//Find lowest number entered
double lowest = numbers1[0];
for (int index = 1; index < numbers1.length; index++)
{
if (numbers1[index] < lowest)
lowest = numbers1[index];
}
return lowest;
}
}
所以...基本上我是在本书的第七章中,从java书籍开始,很多人的答案都倾向于使用我们尚未介绍的方法...(我们现在正在学习数组),坦率地说我不知道如何将用户输入保存在数组中...我将非常感谢您的帮助。这段代码实际上有很多错误,但是我认为如果我找出主要的错误,也许可以帮助我解决其余的错误。
ArrayOperations.java:19: error: incompatible types: String cannot be converted to String[]
numbers = JOptionPane.showInputDialog("Enter your numbers: ");
我在您的代码中更改了许多内容。
01)将字符串作为输入并使用无空格创建数组,然后将该字符串分解为int数组。
02)将数组传递给每个方法,以便计算所有元素。
代码:
import javax.swing.JOptionPane;
public class ArrayOperations
{
public static void main(String[] args)
{
String numbers;
numbers = JOptionPane.showInputDialog("Enter your numbers: ");
int count = 0;
for(int i = 0; i < numbers.length(); i++) {
if(Character.isWhitespace(numbers.charAt(i))) count++;
}
int [] numbers1 = new int [++count];
for(int n = 0; n < count; n++) {
numbers1[n] = Integer.parseInt(numbers.split(" ")[n]);
}
JOptionPane.showMessageDialog(null, "The sum of your numbers is: "
+ getTotal(numbers1) + "\nThe average of your numbers is: " + getAverage(numbers1)
+ "\nThe highest number was: " + getHighest(numbers1) + "\nThe lowest number "
+ "was: " + getLowest(numbers1));
}
public static double getTotal(int[] numbers1)
{
//Accumulate sum of elements in numbers1 array and return total
double total = 0.0;
for (int index = 0; index < numbers1.length; index++)
total += numbers1[index];
return total;
}
public static double getAverage(int[] numbers1)
{
//Get average
return (getTotal(numbers1) / numbers1.length);
}
public static double getHighest(int[] numbers1)
{
//Find highest number entered
double highest = numbers1[0];
for (int index = 1; index < numbers1.length; index++)
{
if (numbers1[index] > highest)
highest = numbers1[index];
}
return highest;
}
public static double getLowest(int[] numbers1)
{
//Find lowest number entered
double lowest = numbers1[0];
for (int index = 1; index < numbers1.length; index++)
{
if (numbers1[index] < lowest)
lowest = numbers1[index];
}
return lowest;
}
}
希望这就是您所需要的。
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