// The "Names" class.
// an example illustrating the use of arrays
import hsa.Console;// for input and output

public class Names
{
    static Console c = new Console();
    //static final int number = 5;//constant value representing how many items to store
    static int number = 0;// how many names are to be processed
    void show(String[] s, int[] g)//s is an array of strings and g is an array of integers
    {
	int i = 0;
	for (i=1; i<=number; i=i+1)
	{
	    c.println(s[i] +"         " + g[i]);//print the ith name
	}
    }
    
    double getAverage(int[] g) //requires an integer array as parameter
    {
	int i = 0;// use as a counter
	int sum = 0;//hold the current sum
	for (i = 1; i <= number; i=i+1)
	{
	    sum = sum + g[i];
	}
	return (double)(sum)/(double)number;
    }
       
    
    public static void main (String[] args)
    {
	//String[ ] names = new String[50];//declaration of an array that can hold up to  50 names
	String[] names;//declare an array whose length is obtained from the user.
	//int[ ] grades = new int[50];// declaration of an array that can hold up to 50 integers
	int[] grades;// declare an array whoselength is obtained from the user.
	int i = 0;//an integer used for counting
	
	c.println("How many names and grades do you have?");
	number = c.readInt();
	names = new String[number+1];//sets up the array and allows starting at index 1.
	grades = new int[number+1];
	Names member = new Names();// a class member for calling methods
	double average = 0.0;// variable to hold the average of the grades
	
	c.println(" Please enter "+number + " names, one per line, and their grades");// alert user to what will happen
	for (i = 1; i <= number; i=i+1)//do the loop body 10 times
	{
	    c.println("Next name?");//ask the user for another name
	    names[i]=c.readLine();//get a name and place it in the array at the ith entry position
	    c.println("Next grade?");
	    grades[i] = c.readInt();
	    //c.println(names[i]);//show the names in the array
	}
       
       average = member.getAverage(grades);//call the getAverage method to find the average grade
	 
       c.println();// skip a line
       c.println(" Here are the names and grades");//tell what will happen
       member.show(names, grades);//call the method that displays the names 
       
       c.println();
       c.println(" The average grade is  " + average);
	
    } // main method
} // Names class