I need help making a java program that will allow me to input 10 test grades into an array using a dialog box in one method. Then in a different method it needs to display the grades and calculate the average, highest, and lowest grade. I have no idea where to start and need a lot of help please.
Sounds like a class assignment - and if that is, we aren't going to do it for you 
Here are several questions:
* what is the mathematical definition of the average, min and max functions ?
* in Java, do you know what data types you can use ?
* have you looked around for the ways to read input and print output (hint, the canonical Java Hello World example shows how to print output) ?
Here are several questions:
* what is the mathematical definition of the average, min and max functions ?
* in Java, do you know what data types you can use ?
* have you looked around for the ways to read input and print output (hint, the canonical Java Hello World example shows how to print output) ?
Ok I have made a method for you that takes in 10 grades and stores it into an array. You should use the console class for basic input and system.out for output. I will leave it up to you to implement the methods to return average, high, and low. If you have any questions feel free to post here. Good luck!
Code:
[/code]
Code:
import java.io.Console;
public class testGradesCemetech
{
private int[] gradeArray=new int[10];
public testGradesCemetech()
{
System.out.println("Please enter 10 grades");
for (int i=0 ; i<10 ; i++)
{
Console console = System.console();
String grade = console.readLine("Enter grade:");
gradeArray[i]=Integer.parseInt(grade);
}
}
public void dispGrades()
{
for (int i:gradeArray)
{
System.out.print(i+" ");
}
}
public static void main (String args[])
{
testGradesCemetech a=new testGradesCemetech();
a.dispGrades();
}
}Register to Join the Conversation
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