Unit2Prelab 1

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    System.out.println("This is a long string that is the " + "concatenation of two shorter strings.");

    System.out.println("The first computer was invented about " + 55 + " years ago.");

    System.out.println("8 plus 5 is " + 8 + 5);

    System.out.println("8 plus 5 is " + (8 + 5));

    System.out.println(8 + 5 + " equals 8 plus 5.");
    System.out.println("Ten robins plus 13 canaries is" + (10 + 13) + "birds.");

    final int NUM_1 = 55;
    int num2 = 23;
    num2 = 45;

    int myNumber = 45;
    myNumber = 12 + 12;

    // prelabs============================================
    int val1, val2, val3;
    double average;
    Scanner scan = new Scanner(System.in);

    // get three values from user
    System.out.println("Please enter three integers and " + "I will compute their average");
    val1 = scan.nextInt();
    val2 = scan.nextInt();
    val3 = scan.nextInt();
    // compute the average
    average=(val1+va2+val3)/3;
    // print the average
    System.out.println("Average of three numbers: "+average);
  }
}