Question

with arays of varius sizes: Write the follawing methuds and test the { public static double getMax( double[] list double max-D.0 max = l tst[0]; //initialize max to first elonent of list for 《int i-1; ic 118t·length ; it+) { if (11st [1] > max) max = list[i]; a. illArray WithRandomNumhers melhud Tt is a void methad with onw perauucter of type double array. I lils the aay with raadom mimhers in the range of 0.0 o 100.0 It is a waid metud with oae parameter of type douhle array. I prints the vahucs of nay It is a value returning method of double type. It receives a double array as a parameter, compntes the average of is b. printArray mehad //and of for loop c. gelArrayAverage method return max end of the gatMax nethod , and nras the avernge d. getMax ethod Mcte A3a the o lc ina tiocle com eru infront ot cach ฑ์ tne netmas deve creo-beve, a aking suitakle Medi Namc &furnciui ol the method horc " @return :only for value rerurm ing methode) İndicate what 1 ף re.urnec Tr is a value relurning melbod of double tye. It receives a double array as a parameter, computes the average of its contents, and returns the maxim nd in the aray eptiens e. getMin method It is a value retungethod of dauble type. I receives a duuble aay as a paraeter, computes the average of its contents, and reus the mininmn value faund in the aay Methods Testing the methods defined above, Erom the main method auy other method) is: Typical call lo invoke this statement from the main melhod (o fr public static void fillarraywithRandomNumbera( doublall list) i declare cxaml as double array lo be ol any sze, bereit wns ser to 35 for {int i=0; íくlist. length; i++) { list[i]Math, randon100.0; ㅏ // end of far loop double I exanl-new double[35] double average, largest, snallest } // end of the fillarrayWithRandomNumberя method Now we can fill examl which is declared as a dathle array riliArraywithRandonNunbers (exanl]i printArray (exam1 average- getArrayAvarage (cxaml); System . out .printf (” Average Exam 1 score is 86.2f \n", average); largest= getMax (exam!) ; System-out-printf (" Largest Exam 1 score is %6.2f \n". large8t); smallest getMin (examl) Systam.out-printf " Smallest Exam 1 scoe is 6,21 \n", smallast) public static void printArray ( double[] 11st systom.out.prinlln(" \t Index alue //print headar sys ton·out. print In"-= ") ; for Cint i-0: 1< list. length: i++) { Systam.out.printlnt i + "\t.* + list[i]) /end of for loop // end of the printArray method public static double getArrayAverage( double list total erent sizes, and use sTmilar calling sca ucuees to fill, print the conienis and山e av Lage of Try declaring ather arrays of du each aay =0.0; double avg-0.0, totaltotal + list[i]; What to subnit I end of Lor loop if (list. length != 0) avg= total / list-length; return avg source code (sueh as PA8program.java) aulput file cousisting of results from at least tw files of diffeent sizes one withsize 35 as siowu above, and another with sie 15) saved in a ord doment: PASnutpuldoex. end of the getArrayAveraga mathod

Answer 1

package april_2;

public class New {
  
   /*
   * fillArrayWithRandomNumbers(), fills the given array with random values
   * @param a 1-d array of double type
   */
   public static void fillArrayWithRandomNumbers(double [] list)
   {
       for(int i = 0 ; i < list.length ; i++)
       {
           list[i] = Math.random() * 100;
       }//end of for loop
   } //end of fillArrayWithRandomNumbers method
  
   /*
   * printArray(), prints the given array
   * @param a 1-d array of double type
   */
   public static void printArray(double []list)
   {
       //print header
       System.out.println("\n\n\n\t Index \t Value \n");
       System.out.println("===================================");
       for(int i = 0 ; i < list.length ; i ++)
       {
           System.out.printf("\t %d \t %6.2f\n",i, list[i]);
       }//end of for loop
      
   }//end of printArray method
  
   /*
   * getArrayAverage(), returns the average of the elements
   * @param a 1-d array of double type
   * @return a double value
   */
   public static double getArrayAverage(double [] list)
   {
       double avg = 0.0;
       double total = 0.0;
      
       for(int i = 0 ; i < list.length ; i ++)
           total += list[i];
      
       avg = total / list.length;
      
       return avg;
   }//end of method getArrayAverage
  
   /*
   * getMax(), returns the maximum of the elements
   * @param a 1-d array of double type
   * @return a double value
   */
   public static double getMax(double[] list)
   {
       double max = 0.0;
       max = list[0];
      
       for(int i = 1; i < list.length ; i ++)
       {
           if(list[i] > max)
               max = list[i];
       }// end of for loop
      
       return max;
   } //end of getMax method
  
   /*
   * getMin(), returns the maximum of the elements
   * @param a 1-d array of double type
   * @return a double value
   */
   public static double getMin(double[] list)
   {
       double min = 0.0;
       min = list[0];
      
       for(int i = 1; i < list.length ; i ++)
       {
           if(list[i] > min)
               min = list[i];
       }// end of for loop
      
       return min;
   } //end of getMin method
  
   public static void main(String[] args) {
      
       double[] exam1 = new double[35];
       double average, largest, smallest;
      
       fillArrayWithRandomNumbers(exam1);
       printArray(exam1);
      
       average = getArrayAverage(exam1);
       System.out.printf(" Average Exam 1 score is %6.2f \n", average);
      
       largest = getMax(exam1);
       System.out.printf(" Largest Exam 1 score is %6.2f \n", largest);
      
       smallest = getMax(exam1);
       System.out.printf(" Smallest Exam 1 score is %6.2f \n", smallest);
      
      
       double[] exam2 = new double[20];
       double average2, largest2, smallest2;
      
       fillArrayWithRandomNumbers(exam2);
       printArray(exam2);
      
       average2 = getArrayAverage(exam2);
       System.out.printf(" Average Exam 2 score is %6.2f \n", average2);
      
       largest2 = getMax(exam2);
       System.out.printf(" Largest Exam 2 score is %6.2f \n", largest2);
      
       smallest2 = getMax(exam2);
       System.out.printf(" Smallest Exam 2 score is %6.2f \n", smallest2);
   }
  
}

Index Value 95.28 42.54 44.39 48.61 98.00 3.21 89.63 77.91 30.54 77.31 32.52 56.03 49.03 23.97 12.55 64.84 41.13 31.01 89.19 25.27 47.34 90.26 67.96 57.95 43.51 58.05 73.97 95.58 79.72 17.80 93.01 39.78 61.88 60.87 37.38 4 6 7 10 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 34 Average Exam 1 score is 55.94 Largest Exam 1 score is 98.00 Smallest Exam 1 score is 98.00

Index Value 11.93 70.43 41.04 96.56 94.67 33.50 38.51 1.24 99.02 10.52 89.90 63.39 20.51 96.97 2.12 54.53 66.80 30.59 70.37 50.04 4 6 7 10 12 13 14 15 16 17 18 19 Average Exam 2 score is 52.13 Largest Exam 2 score is 99.02 Smallest Exam 2 score is 99.02