Answer:
Output
Enter first number: Â
1
Enter second number: Â
2
Enter third number: Â
3
Enter fourth number: Â
4
Average: 2.5
Explanation:
Below is the java program to calculate the average of four numbers:-
import java.util.Scanner;
public class Average {
public static void main(String[] args){
 int a,b,c,d;
 double average=0.0;
 Scanner s=new Scanner(System.in);
 System.out.println("Enter first number: ");
 a=s.nextInt();
 System.out.println("Enter second number: ");
 b=s.nextInt();
 System.out.println("Enter third number: ");
 c=s.nextInt();
 System.out.println("Enter fourth number: ");
 d=s.nextInt();
 average=(a+b+c+d)/4.0;
 System.out.println("Average: "+average);
}
}