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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. import java.util.Arrays; 
  6. class Main { 
  7.  
  8.     public static void main (String args[]) { 
  9.  
  10.         int numbers[]= {1,5,-9,12,-3,89, 18,23,4,-6};
  11.  
  12.         // Find minimum (lowest) value in array using loop 
  13.         System.out.println("Minimum Value = " + getMinValue(numbers));
  14.  
  15.         // Find maximum (largest) value in array using loop 
  16.         System.out.println("Maximum Value = " + getMaxValue(numbers)); 
  17.  
  18.         // ADD CODE TO CALL getAvgValue AND PRINT THE AVERAGE  
  19.         // Don't forget to call the avg method below ... call it just like 
  20.         // the two methods above ...
  21.         // Add any challenge method calls here .... 
  22.  
  23.         // ADD CODE TO SORT THE NUMBERS IN THE ARRAY, PRINT THE SORTED ARRAY 
  24.  
  25.         // Use the built-in array sort method on the array 
  26.         // ... then add a loop here (no need to call a method) to print 
  27.         // the now sorted array. See our lecture notes for examples. 
  28.  
  29.     }  
  30.  
  31.  
  32.     // Find maximum (largest) value in array using loop  
  33.  
  34.     public static int getMaxValue(int[] numbers) { 
  35.  
  36.         int maxValue = numbers[0];  // set the first array element (index of 0) as the max
  37.  
  38.         // ... remember that arrays start with an index of 0  
  39.         // ADD CODE TO ADD A LOOP, CHECK EACH ARRAY ELEMENT 
  40.         // AGAINST THE CURRENT maxValue (USE AN IF STATEMENT)   
  41.  
  42.         // The key is to use a loop with the length property of the array 
  43.         // to access and check every element after the first element. The if statement 
  44.         // each time will check the current max value against the current 
  45.         // array value. At the end of the loop, maxValue will contain 
  46.         // the largest number in the array. 
  47.  
  48.         // Access each array element starting with the second element (i = 1, not 0)
  49.  
  50.         for (int i = 1; i < numbers.length; i++) {
  51.             if (numbers[i] > maxValue) {  // current element > current max value ?
  52.                 maxValue = numbers[i];  // the current element is now the max value
  53.             }  // end if
  54.         }  // end for
  55.  
  56.         return maxValue; // return the largest array element value  
  57.     } // getMaxValue
  58.  
  59.  
  60.     // Find minimum (lowest) value in array using loop 
  61.  
  62.     public static int getMinValue(int[] numbers) { 
  63.  
  64.         int minValue = numbers[0]; 
  65.  
  66.         // ADD CODE TO ADD A LOOP, CHECK EACH ARRAY ELEMENT 
  67.         // AGAINST THE CURRENT minValue (USE AN IF STATEMENT) 
  68.  
  69.         // Hint: This is just like the for loop in the max function above, 
  70.         // just revise to check for min value instead of max value
  71.  
  72.         return minValue; 
  73.  
  74.     } // getMinValue  
  75.  
  76.  
  77.     // Find the average of an array of integers 
  78.  
  79.     public static double getAvgValue(int[] numbers) {  
  80.  
  81.         // ADD CODE TO SET UP NEEDED VARIABLES, ONE TO SUM ALL ARRAY ELEMENT VALUES, AND 
  82.         // AND ANOTHER ONE, average, TO BE USED TO CALCULATE THE AVERAGE OF 
  83.         // ALL ARRAY ELEMENT VALUES 
  84.  
  85.         double average = 0;  
  86.         double sum = 0;  
  87.  
  88.         // ADD CODE TO ADD A LOOP TO COMPUTE A RUNNING TOTAL OF ALL ARRAY ELEMENTS 
  89.  
  90.         // use a loop like in the max function, but instead of an if, add the current 
  91.         // array element value to sum. This will keep a running total as each element value 
  92.         // is added to sum as it is accessed in the loop: sum = sum + numbers[i] ;
  93.  
  94.         // ADD CODE TO COMPUTE THE AVERAGE  
  95.  
  96.         // The average just takes the sum variable and divides it by the total 
  97.         // number of array items  (i.e., numbers.length)
  98.  
  99.         return average; 
  100.  
  101.     } // getAvgValue  
  102.  
  103.     // Add any Challenge methods here ... 
  104.  
  105. } // Main Class
Success #stdin #stdout 0.15s 55664KB
comments (?)
stdin 
Standard input is empty
stdout 
Minimum Value = 1
Maximum Value = 89
https://ideone.com/oMUs28
language:
Java (HotSpot 12)
created:
19 days ago
visibility:
public

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