Question

. In the method main, prompt the user for a non-negative integer and store it in an int variable num (Data validation is not required for the lab). Create an int array whose size equals num+10. Initialize the array with random integers between 0 and 50 (including 0 and excluding 50). Hint: See Topic 4 Decision Structures and File IO slides page 42 for how to generate a random integer between 0 (inclusive) and bound (exclusive) by using bound in the nextInt method. 2. Define the following methods:

1) printArray accepts a one-dimensional array as its argument and print out the contents of the array.

2) getTotal accepts a one-dimensional array as its argument and returns the total of the values in the array. Try to use an enhanced for loop in the method.

3) getAverage accepts a one-dimensional array as its argument and returns the average of the values in the array as a floating-point value. Hints: Call getTotal method to avoid repetition of code.

4) getHighest accepts a one-dimensional array as its argument and returns the highest value in the array.

5) getLowest accepts a one-dimensional array as its argument and returns the lowest value in the array.

3. Call the printArray method to output the contents of the array.

4. Set the last element of the array to be the value of the eighth element minus twice the fifth element. Output the contents of the array again.

5. Display the total, the average, the highest, and the lowest value of the array by calling the above methods.

Starter code

port java.util.Random;
import java.util.Scanner;

public class Lab5 {

public static void main(String[] args) {

Scanner keyboard = new Scanner(System.in);
System.out.print("Enter a non negative integer: ");
int num = keyboard.nextInt();
int[] alpha = new int[num + 10];
Random rand = new Random();
for (int i = 0; i < alpha.length; i++) {
alpha[i] = rand.nextInt(50);

}
printArray(alpha);
System.out.println("The total is: ");
}

public static void printArray(int[] array) {
//regular for loop
for (int i = 0; i < array.length; i++) {
System.out.print(array[i] + " ");
System.out.println("");

//Enhanced For Loop
for (int n : array) {
System.out.println(n + " ");
}
System.out.println("");

}
  

public static int getTotal(int[] array) {
int total = 0;
for (int i = 0; i < array.length; i++) {
total += array[i];
}
return total;
}
}

Answer 1

Lab5.java xx 1 package schedulingtask schedulingtaskderno; 41mport java.util.Randon; 5 import java.util.Scanner: 11 public class Labs public static void main(Strinell args) { Scanner keyboard - new Scanner(System.in); System.out.print("Enter a non negative integer: "); int num - keyboard.nextInt (); int[] alpha - new int[num + 10); Randon rand new Random(): for (int i - A; i < alpha.length; i++) { alpha[i] - rand.nextInt(50); 13 15 16 19 be 21 System.out.println("The total is: "+getlotal(alpha)); System.out.println("The averaer is: "+getAverage (alpha)); System.out.println("The highest is: "-gettighest(alpha)); System.out.println("The lowest is: "+getLowest (alpha)); setlast Element(alpha); public static void printArray(int[] array) { //regular for loop for (int i - ; i < array.length; i++) { Systen.out.print(array[i] + " "); System.out.println(""); 26 28 //Enhanced For Loop for (int n; array) { System.out.println(n + " "); 34 System.out.println(""); 29 public static int ErtTotal(int[] array) {

13388 public static int getlotal(int[] array) { int total - 0:1 for (int i - ; i < array.length; i++) { total arrayfil: 140 41 43 return total; 44 public static double getAveraer(int[] array) 46 AR double sun .e: double total-getTotal(array)*1.; Sur-total/(array.length); return sun; 49 se 51 52 public static int setllighest(int[] array) int high-6; for(int i:array) 56 57 if(i>high) high-i; return high; public static int getLowest(int[] array) 65 int low-108: for(int i:array) 67 if(i<low) lowsi; return low; 738 public static void set LastElement(int[] array)

44 458 public static double getAverage(int[] array) double sun-2.0; double total-get Total (array)*1.0; surtotal/(array.length); return sun; 49 public static int getHighest(int[] array) int high-8; for(int i array) if(i>high) high-i; return high; 61 public static int getLowest(int[] array) 63 int lowe100: for(int i:array) 1F(iclow) low ; return low; 730 public static void setLastElement(int[] array) 75 array(array.length-1)=array(7)-2* array[4]; printArray(array); 77 } 80 }

Console X terminated > Lab5 [lava Application C:\Program Files lava je 180 221\bin java.exe (23-Feb-2020, 10:38:18 AM) Enter a nuri negalive inleger: 2 The total is: 237 The average is: 19.75 The highesLis: 47 The lowest is: 4 Contents of the array in regular loop: Cunlerils of the array in enhanched loop:
hi

I have completed the function with corresponding names. So you can get them easily.

printArray() has two loops, You can use any one of them (use both if it is required to do so otherwise one loop is enough). Ihave not changed your existing code.

If you get any problem you can reach us again.

Lab5.java xx 1 package schedulingtask schedulingtaskderno; 41mport java.util.Randon; 5 import java.util.Scanner: 11 public class Labs public static void main(Strinell args) { Scanner keyboard - new Scanner(System.in); System.out.print("Enter a non negative integer: "); int num - keyboard.nextInt (); int[] alpha - new int[num + 10); Randon rand new Random(): for (int i - A; i < alpha.length; i++) { alpha[i] - rand.nextInt(50); 13 15 16 19 be 21 System.out.println("The total is: "+getlotal(alpha)); System.out.println("The averaer is: "+getAverage (alpha)); System.out.println("The highest is: "-gettighest(alpha)); System.out.println("The lowest is: "+getLowest (alpha)); setlast Element(alpha); public static void printArray(int[] array) { //regular for loop for (int i - ; i < array.length; i++) { Systen.out.print(array[i] + " "); System.out.println(""); 26 28 //Enhanced For Loop for (int n; array) { System.out.println(n + " "); 34 System.out.println(""); 29 public static int ErtTotal(int[] array) {

13388 public static int getlotal(int[] array) { int total - 0:1 for (int i - ; i < array.length; i++) { total arrayfil: 140 41 43 return total; 44 public static double getAveraer(int[] array) 46 AR double sun .e: double total-getTotal(array)*1.; Sur-total/(array.length); return sun; 49 se 51 52 public static int setllighest(int[] array) int high-6; for(int i:array) 56 57 if(i>high) high-i; return high; public static int getLowest(int[] array) 65 int low-108: for(int i:array) 67 if(i<low) lowsi; return low; 738 public static void set LastElement(int[] array)

44 458 public static double getAverage(int[] array) double sun-2.0; double total-get Total (array)*1.0; surtotal/(array.length); return sun; 49 public static int getHighest(int[] array) int high-8; for(int i array) if(i>high) high-i; return high; 61 public static int getLowest(int[] array) 63 int lowe100: for(int i:array) 1F(iclow) low ; return low; 730 public static void setLastElement(int[] array) 75 array(array.length-1)=array(7)-2* array[4]; printArray(array); 77 } 80 }

Console X terminated > Lab5 [lava Application C:\Program Files lava je 180 221\bin java.exe (23-Feb-2020, 10:38:18 AM) Enter a nuri negalive inleger: 2 The total is: 237 The average is: 19.75 The highesLis: 47 The lowest is: 4 Contents of the array in regular loop: Cunlerils of the array in enhanched loop:

Plain text:---

import java.util.Random;
import java.util.Scanner;

public class Lab5 {
   public static void main(String[] args) {
   Scanner keyboard = new Scanner(System.in);
System.out.print("Enter a non negative integer: ");
int num = keyboard.nextInt();
int[] alpha = new int[num + 10] ;
Random rand = new Random();
for (int i = 0; i < alpha.length; i++) {
alpha[i] = rand.nextInt(50);

}
  
System.out.println("The total is: "+getTotal(alpha));
System.out.println("The average is: "+getAverage(alpha));
System.out.println("The highest is: "+getHighest(alpha));
System.out.println("The lowest is: "+getLowest(alpha));
setLastElement(alpha);
   }
   public static void printArray(int[] array) {
//regular for loop
       System.out.println("Contents of the array in regular loop:");
   for (int i = 0; i < array.length; i++) {
System.out.print(array[i] + " ");
System.out.println("");
}
//Enhanced For Loop
System.out.println("Contents of the array in enhanched loop:");
for (int n : array) {
System.out.println(n + " ");
}
System.out.println("");

}
public static int getTotal(int[] array) {
int total = 0;
for (int i = 0; i < array.length; i++) {
total += array[i];
}
return total;
}
public static double getAverage(int[] array)
{
double sum=0.0;
double total=getTotal(array)*1.0;
sum=total/(array.length);
return sum;
}
public static int getHighest(int[] array)
{
int high=0;
for(int i:array)
{
if(i>high)
high=i;
}
return high;
}
public static int getLowest(int[] array)
{
int low=100;
for(int i:array)
{
if(i<low)
low=i;
}
return low;
}
  
public static void setLastElement(int[] array)
{
array[array.length-1]=array[7]-2*array[4];
printArray(array);
}

}

output--->

Enter a non negative integer: 2
The total is: 274
The average is: 22.833333333333332
The highest is: 43
The lowest is: 0
Contents of the array in regular loop:
8
41
4
39
0
15
28
17
7
43
43
17
Contents of the array in enhanched loop:
8
41
4
39
0
15
28
17
7
43
43
17