/**
 * Complete the following static methods for arrays
 * @author 
 */
public class ArrayPractice {

  //Return the product of the numbers in the array
  public static int product(int[] array) {
   
   
  }

  //Return maximum value in the array
  //Return 0 if the array is empty
  public static int max(int[] array) {
    
  }

  //Return the average of the values in the array
  //If the array is empty, return 0
  public static double average(int[] array) {
    
  }
  
  //Return the standard deviation of the values in the array
  //See programming project 6.6, page 376 for the formula
  //If the array is empty or has one element, return 0
  //Hint: use the average method above to calculate the mean
  public static double standardDeviation(int[] array) {
    
    
  }
  
  //Return true if the value is found in the array
  //false otherwise
  public static boolean isFound(int[] array, int value) {
    
    
  }
  
  //Return a new array which contains the values of 
  //array1 followed by the values of array2
  public static int[] combine(int[] array1, int[] array2) {
    
    
  }
  
  
  
  //Return a String representing the array
  //for example: [2, 4, 9]
  public static String getString(int[] array) {
    String s = "[";
    for (int i = 0; i < array.length; i++) {
      s += array[i];
      if (i != array.length - 1)
        s += ", ";
    }
    s += "]";
    return s;
  }
      

  public static void main(String[] args) {
  

    int[] array = { 3, 5, 2, 8, 1, 6, 7, 9, 10};
    
    System.out.println("Array:   " + getString(array));
    
    System.out.println("Product: " + product(array));
    
    System.out.println("Maximum value: " + max(array));
    
    System.out.println("Average value: " + average(array));
    
    System.out.println("Standard deviation: " + standardDeviation(array));
    
    System.out.println("5 in array?: " + isFound(array,5));
    
    System.out.println("4 in array?: " + isFound(array,4));
    
    int[] empty = {};
    
    System.out.println("Array:   " + getString(empty));
    
    System.out.println("Product: " + product(empty));
    
    System.out.println("Maximum value: " + max(empty));
    
    System.out.println("Average value: " + average(empty));
    
    System.out.println("Standard deviation: " + standardDeviation(empty));
    
    System.out.println("5 in array?: " + isFound(empty,5));
    
    System.out.println("4 in array?: " + isFound(empty,4));
    
    int[] one = {5};
    
    System.out.println("Array:   " + getString(one));
    
    System.out.println("Product: " + product(one));
    
    System.out.println("Maximum value: " + max(one));
    
    System.out.println("Average value: " + average(one));
    
    System.out.println("Standard deviation: " + standardDeviation(one));
    
    System.out.println("5 in array?: " + isFound(one,5));
    
    System.out.println("4 in array?: " + isFound(one,4));
    
    int[] other = {1, 5, 4};
    
    int[] bigArray = combine(array, other);
    
    System.out.println("Big Array: " + getString(bigArray));
    

  }
}