Question

In: Computer Science

import java.util.Stack; import java.util.Scanner; class Main { public static void main(String[] args)    {       ...

import java.util.Stack;
import java.util.Scanner;

class Main {
public static void main(String[] args)
   {
       Stack<Integer> new_stack = new Stack<>();/* Start with the empty stack */
       Scanner scan = new Scanner(System.in);
       int num;
       for (int i=0; i<10; i++){//Read values
           num = scan.nextInt();
           new_stack.push(num);
       }
System.out.println(""+getAvg(new_stack));
   }

   
public static int getAvg(Stack s) {
       //TODO: Find the average of the elements in the stack
       //If the average is a decimal number, return only the integer part. Example: if average=10.8, return 10
       //Example: if s=[10, 20, 30, 40, 50[, the method should return: 30
  
      
   }

}

Solutions

Expert Solution

import java.util.Stack;
import java.util.Scanner;

class Main {
    public static void main(String[] args)
    {
        Stack<Integer> new_stack = new Stack<>();/* Start with the empty stack */
        Scanner scan = new Scanner(System.in);
        int num;
        for (int i=0; i<10; i++){//Read values
            num = scan.nextInt();
            new_stack.push(num);
        }
        System.out.println(""+getAvg(new_stack));
    }


    public static int getAvg(Stack s) {
        //TODO: Find the average of the elements in the stack
        //If the average is a decimal number, return only the integer part. Example: if average=10.8, return 10
        //Example: if s=[10, 20, 30, 40, 50[, the method should return: 30
        int sum = 0;
        int count = 0;
        while (!s.isEmpty()){
            sum += Integer.parseInt(String.valueOf(s.pop()));
            count += 1;
        }
        return sum/count;

    }

}


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