In this program we will find the average of two numbers. To find average of two numbers, they are added and their sum is divided by two.

Problem:
Input two numbers from the user and display their average on the screen.

Code:
 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18``` ``` /** * @author Hafiz Muhammad Umer */ import java.util.Scanner; public class Average { public static void main(String[] args) { Scanner input=new Scanner(System.in); double a,b,avg; System.out.print("Enter first number: "); a=input.nextDouble(); System.out.print("Enter second number: "); b=input.nextDouble(); avg=(a+b)/2; System.out.println("The average of "+a+" and "+b+" is "+avg); } } ```
Output:
```Enter first number: 1
Enter second number: 2
The average of 1.0 and 2.0 is 1.5
```
Explanation:
• The line 4 imports the Scanner utility in java. It will be used to create Scanner objects so that we can take input in our program.
• Line 5 defines a class which ends at line 18.
• Line 7 defines the main method which ends at line 17.
• Line 9 creates a Scanner object named input.
• Line 10 defines three double variables.
• From line 11 to 14, two values are taken from the user as input.
• At line 15, the average of a and b is calculated and stored in the variable avg.
• At line 16, the average is displayed on the screen.