Question

我为TestScores和ScoreException创建了一个程序，现在我想弄清楚如何计算得分的平均值。以下是我编写平均值代码时的代码，它产生了一个找不到合适的字符串

的方法

TestScores

import javax.swing.*;
public class TestScore
{
 public static void main(String args[]) throws Exception
  {
  int[] id = {1234, 2345, 3456, 4567, 5678};
  int[] score = {0, 0, 0, 0, 0};
  String scoreString = new String();
  final int HIGHLIMIT = 100;
  String inString, outString = "";
  for(int x = 0; x < id.length; ++x)
  {  
      inString = JOptionPane.showInputDialog(null, 
        "Enter score for student id number: " + id[x]);
      score[x] = Integer.parseInt(inString);
      try
      {
         if(score[x] > HIGHLIMIT)
         {
            scoreString = "Score over " + HIGHLIMIT;
            throw (new ScoreException(scoreString));
         }  
      }
      catch(ScoreException e)
      {  
         JOptionPane.showMessageDialog(null, e.getMessage());  
         score[x] = 0;
      }
      }
   for(int x = 0; x < id.length; ++x)
     outString = outString + "ID #" + id[x] + "  Score " +
          score[x] + "\n";
   JOptionPane.showMessageDialog(null, outString); 
}
}

我的ScoreException代码

public class ScoreException extends Exception
 {
  public ScoreException(String s)
  {
    super(s);
  }
 }

这就是我对普通代码的看法，但它没有正确显示

int score[] = new score[] { 45, 98 ,80, 74, 93};
double result = 0; 
{
for(int x=0; x < int.length; x++){
result += score[x];
}
System.out.println(result/count)

Answer 1

double total=0;
double average=0;
for(int x = 0; x < score.length; ++x)
     total+=score[x];

average=total/score.length;
JOptionPane.showMessageDialog("Average Score:"+ average);

你不明白的是什么？

用Java计算平均值？

1 个答案: