public static int sum(int[] arr) public static int sum(int[] arr, int firstIndex, int lastIndex) public static double average(int[] arr)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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How do I input:

public static int readGrades(int[] grades)

public static int sum(int[] arr)

public static int sum(int[] arr, int firstIndex, int lastIndex)

public static double average(int[] arr)

public static int maxValue(int[] arr)

public static int maxValue(int[] arr, int firstIndex, int lastIndex)

public static int indexOfFirstMaxValue(int[] arr)

public static int minValue(int[] arr)

public static int minValue(int[] arr, int firstIndex, int lastIndex)

public static int indexOfFirstMinValue(int[] arr)

public static int numberOfBelowAverageElements(int[] arr)

public static int numberOfAboveAverageElements(int[] arr)

public static void rotateElements(int[] arr)

public static void rotateElements(int[] arr, int rotationCount)

public static void reverseArray(int[] arr)

public static void main(java.lang.String[] args)

into my java code?

code:

import java.util.Scanner;
public class Grades {
 public static void main(String[] args) {
  //Declare required variables
  int grade,count = 0;
  int min = 100, max = 0;
  //Scanner for user input 
  Scanner scan = new Scanner(System.in);
  //Infinite loop
  while(true) {
   //Prompt for input 
   System.out.print("Enter a grade: ");
   grade = scan.nextInt();
   if(grade<0)
    break;
   else
    count++;
   //Keep track of grades
   max = Math.max(max, grade);
   min = Math.min(min, grade);
  }
  //Output result 
  System.out.println("Number of Grades = "+count);
  System.out.println("Maximum Exam Grade = "+max);
  System.out.println("Minimum Exam Grade = "+min);
 }
}

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