/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		float[] minhasNotas = new float[3]; // minhasNotas eh um array de 3 valores
                                            // e cada um dele é um valor de ponto flutuante
	    minhasNotas[0] = 8.0f; // preenchendo a nota da primeira prova no array
    	minhasNotas[1] = 6.5f;
    	minhasNotas[2] = 9.2f; // ultima nota
 
    	float media = calculaMedia(minhasNotas);
 
    	System.out.println(media); // mostra a media na tela
	}
 
	public static float calculaMedia(float[] notas) {
		// percorremos todos os elementos do array e somamos eles
		float soma = 0.0f;
 
		// a variavel i armazena o indice atual
		for (int i = 0; i < notas.length; i++) {
			soma += notas[i];
		}
 
		// dividimos a soma dos valores pelo numero de valores para obter a media
		return soma / (float)notas.length;
	}
}

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