Question

您好我对Java及其所有奇迹都很陌生。当谈到while循环和for循环时，我完全糊涂了。我很难让我的代码仅为实数打印n个用户输入的平均值，然后计算平均值并获得所用输入的高值和低值。如果用户输入＆＃34;结束＆＃34;停止并计算....我只使用了java也许2周了，我的努力工作，我试图学习但是循环很难让我听到...这里是我的代码到目前为止。

int inputNumber = Integer.parseInt (JOptionPane.showInputDialog("Enter a few real numbers"));
//number entered by user
while (inputNumber !=0) {//numbers entered
    sum += inputNumber;
    count++;//adds one to count for every number entered

    if (count == 7){
        System.out.println("thats enough numbers enter end");
        //stops excess of seven numbers prompts type end to finish
    }
    else {
        average = ((double)sum) / count;//gets average double the numbers divided by number of numbers
        System.out.println("average:"+ average); //displays average

        JOptionPane.showMessageDialog(null, "The average is "       +average + "and the number of numbers entered is " + count);
    }
}

Answer 1

你可以从用户那里获得循环外的输入数量，迭代总次数以获得输入和总和，计算平均值一旦计算出来

    int total = Integer.parseInt(JOptionPane.showInputDialog("Enter total number of inputs "));
    for (int i = 0; i < total; i++) {
        sum += Integer.parseInt(JOptionPane.showInputDialog("Enter input number "));
    }
    average = sum / total;
    JOptionPane.showMessageDialog(null, "The average is " + average + "and the number of numbers entered is " + total);

Answer 2

我试着写一个，希望它有所帮助。我也是Java的新手。

    int sum = 0;
    int count = 0;
    double average = 0;
    int inputNumber2 = 0;
    //number entered by user
    while (inputNumber2 == 0) {//numbers entered

        int inputNumber = Integer.parseInt (JOptionPane.showInputDialog("Enter a few real numbers"));
        sum += inputNumber;
        count++;//adds one to count for every number entered

        if (count == 7) {
           // System.out.println("thats enough numbers enter end");
            //stops excess of seven numbers prompts type end to finish
            String text3 = JOptionPane.showInputDialog("Thats enough numbers enter end");
            break;
        } else {
            average = ((double) sum) / ((double)count);//gets average double the numbers divided by number of numbers
            System.out.println("average:" + average); //displays average

            JOptionPane.showMessageDialog(null, "The average is " + average + "and the number of numbers entered is " + count);
        }
    }
}

我在向代码中插入一系列不同的请求时遇到了困难

2 个答案: