SOMEONE HELP ME CODE JAVA

hey can someone help me find the averages for each column that gets printed in the following code? im seething so hard rn

import java.util.*;

class SevenB

{

public static void main (String[]args)

{

//variable

int i=0;

int theirNumber;

int a=0;

int b=1;

int c=2;

int d=3;

int e=4;

int z=0;

Scanner scan= new Scanner(System.in);

//array setup

int[]fart=new int[20];

//NUMBER INPUT!!!!!!!!

//ask

System.out.println("What are the 20 numbers you want to input?");

//loops

while (i < 20)

{

theirNumber=scan.nextInt();

fart[i]=theirNumber;

i=i+1;

}

//print

System.out.println();

//PRINT ARRAY!!!!!!!!

//priiiint

//

while(z < 4)

{

System.out.println("Row "+z+":    "+fart[a]+"    "+fart[b]+"    "+fart[c]+"    "+fart[d]+"    "+fart[e]+"    ");

z=z+1;

a=a+5;

b=b+5;

c=c+5;

d=d+5;

e=e+5;

}

//System.out.println("Average  :   "+ +"    "+ +"    "+ +"    "+ +"    "+ +"    ");

}

}