Question

嗨，所以我正在制作一个程序，使用数组和方法计算10个学生成绩，学生的分数如下所示。我遇到的问题是显示名称平均值和3个列中的等级彼此相邻。用于打印数组的当前代码打印出来就像这样

 The Average is
 Average: 82.4
 Average: 81.2
 Average: 66.6
 Average: 72.2
 Average: 52.2
 Average: 59.2
 Average: 63.4
 Average: 90.0
 Average: 73.4
 Average: 68.8
 The grade is
 Grade = B
 Grade = B
 Grade = C
 Grade = C
 Grade = D
 Grade = D
 Grade = D
 Grade = A
 Grade = C
 Grade = C
 BUILD SUCCESSFUL (total time: 0 seconds)

这里是带有名称标记和平均值的代码我已经做过任何帮助非常感谢

import java.util.Arrays;


public class Question2Assignment {

public static double [][] Marks;
public static char [] graded;
public static String [] Name;
public static double [] avg;

public static void main(String[] args) {

  inMarks() ;
  SNames();  

 System.out.println("The Average is"); 
 for (double number : AverageMarks(Marks))
 {

     System.out.print("Average: " + number);
     System.out.println("");
 }


 System.out.println("The grade is");
 for (char grade : Grade(graded))
  {
     System.out.print("Grade = " + grade);
     System.out.println("");

 }
} 

private static void inMarks()
{
    Marks = new double [][] {{85,83,77,91,76},{80,90,95,93,48},{78,81,11,90,73},{92,83,30,69,87},{23,45,96,38,59},{60,85,45,39,67},{77,31,52,74,83},{93,94,89,77,97},{79,85,28,93,82},{85,72,49,75,63}};
}

private static void SNames()
{
    Name = new String [] {"Jognson","Aniston","Cooper","Gupta","Blair","Clark","Kennedy","Bronson","Sunny","Smith"};
}


public static double[] AverageMarks(double[][] Marks)
{

double avg[] = new double [Marks.length];

for (int row = 0; row < Marks.length; row++){
    int sum=0;
    for (int col = 0; col < Marks[row].length; col++){
        sum += Marks[row][col];
    }
    avg[row] = 1.0*sum / Marks[row].length; // calc average

}
return avg;
 }
      public static char [] Grade(char[] Graded)
  {
 char [] graded = new char [10];
 int count = 0;
 for (double number : AverageMarks(Marks)) 
 {

     if(number <50)
     {
         graded [count] = 'F';
     count++;
     }
     else if (number <65)
     {
         graded [count]= 'D';
         count++;
     }
     else if (number <75)
     {
         graded [count] = 'C';
         count++;
     }
     else if (number <85)
     {
         graded [count] ='B';
         count++;
     }
     else   
     {
         graded [count]='A';
         count++;
     }
    }//first for loop
  return graded;
  }


   }//class end

Answer 1

for (int i = 0; i<Name.length; i++) {
    System.out.println(Name[i]+" "+avg[i]+" "+graded[i]);
}

Answer 2

`double[] averageMarks = AverageMarks(Marks);
char[] grades = Grade(graded);
for (int i = 0; i<Name.length; i++) {
        System.out.println(Name[i]+" "+averageMarks[i]+" "+grades[i]);
    }`

上面给出的答案指出了正确的方向，但是对于这种情况给出了错误的结果

尝试使用三个数组Java来获得三列数据

2 个答案: