Code Lab 17
import java.io.*;
import java.util.*;
public class prog170A
{
    public static void main()
    {
     double [] studGrade = {76.3, 90.7, 75, 86.5};
     for(int i = 0; i < studGrade.length; i++)
     {
         System.out.println("The grade of #" + (i+1) +" student is " + studGrade[i]);
     }
   }
}




import java.io.*;
import java.util.*;
public class prog170B
{
    public static void main()
    {
     double [] studGrade = {76.3, 90.7, 75, 86.5};
     for(int i = studGrade.length-1; i >= 0; i--)
     {
         System.out.println("The grade of #" + (i+1) +" student is " + studGrade[i]);
     }
   }
}



import java.io.*;
import java.util.*;
public class prog170C
{
    public static void main()
    {
     Scanner scan = new Scanner(System.in);
     double [] Grade = new double[5];
     double sum = 0;
     for(int i = 0; i < Grade.length; i++)
     {
         System.out.println("Enter the grade: ");
         Grade[i] = scan.nextInt();
         sum += Grade[i];
     }
     System.out.println("The sum of the grade entered: "+ sum +".");
   }
}





import java.io.*;
public class prog171
{
    public static void main()
    {
     double[] finalGrade = {85.8, 93.7, 76, 88.5, 100, 91.3};
     double sum = 0, average = 0;
     DecimalFormat decFor = new DecimalFormat("0.0");

     for(int i = 0; i < finalGrade.length; i++)
          sum += finalGrade[i];

     average = sum / finalGrade.length;

     System.out.println("The average is "+ decFor.format(average) +".");
    }
}





import java.io.*;
import java.util.*;
public class prog172
{
    public static void main()
    {
     Scanner scan = new Scanner(System.in);
     double [] finalGrade = {85.8, 93.7, 76, 88.5, 100, 91.3};
     double sum = 0, average = 0;
     DecimalFormat decFor = new DecimalFormat("0.0");
     for(int i = finalGrade.length-1; i >= 0; i--)

         sum += finalGrade[i];
         average = sum / finalGrade.length;
         System.out.println("The average is "+ decFor.format(average) +".");

    }
}