Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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  1. Write a Java application for a grade book using arrays:
    • Create an array to store 20 test grades, random numbers between 0-100, inclusive.
    • Print these 20 grades
    • Calculate and print the average grade
    • Calculate and print the highest and lowest grades
  2. Complete BMI arrays template BMI.java
    • Use two int arrays to store n numbers from user input, called height[] and weight[].
    • "The BMI is defined as the body mass divided by the square of the body height"
    • Calculate BMIs and store values into a double array called bmi[].
    • Write a method to print an array, use an enhanced for loop in the print method.
    • Print the BMIs by invoking the print method.
      • import java.util.Scanner;
        public class BMI{
        public static void main(String[] args){
        Scanner key = new Scanner (System.in);
        int num = // use Scanner object to get an integer

        // declare an int array for height
        int[] height = new int[num];
        // declare an int array for weight below
        ...
        // declare an array for BMI array
        ...


        for ( ){ // iterate all array elements, calculate BMI values
        ...
        ...
        }

        }
        }
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