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Saturday, 20 August 2016

Chapter 7 Exercise 10, Introduction to Java Programming, Tenth Edition Y. Daniel LiangY.

7.10 (Find the index of the smallest element) Write a method that returns the index of the smallest element in an array of integers. If the number of such elements is greater than 1, return the smallest index. Use the following header:
public static int indexOfSmallestElement(double[] array)

Write a test program that prompts the user to enter ten numbers, invokes this method to return the index of the smallest element, and displays the index. 



import java.util.Scanner;
 
 
public class ProgrammingEx7_10 {
 
 
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  System.out.print("Enter ten numbers:");
  Scanner input = new Scanner(System.in);
  double[] numbers = new double[10];
 
  for (int i = 0; i < numbers.length; i++) {
   numbers[i] = input.nextDouble();
  }
 
  System.out.println("The index of minimum number is: " + indexOfSmallestElement(numbers));
 }
 
 public static int indexOfSmallestElement(double[] array) {
 
  double min = array[0];
  int minIndex=0;
 
  for (int i = 1; i < array.length; i++) {
   if (min > array[i]) {
    minIndex = i;
   }
  }
 
  return minIndex;
 
 }
 
}

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