Write a program in Java to assign integers [tex]a[/tex], [tex]b[/tex], and [tex]c[/tex] with values 3, 6, and 9. Perform the following operations and print the results of the operations:

1. [tex]a + b + c[/tex]
2. [tex]V = \frac{a^2 + b^2}{2}[/tex]



Answer :

Sure, let's go through the steps to write a Java program that assigns integers [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex] with the values 3, 6, and 9 respectively, performs the specified operations, and prints the results.

Step 1: Declare and initialize the variables
- Start by declaring three integer variables [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex] and assign them the values 3, 6, and 9 respectively.

Step 2: Perform the arithmetic operations
- Compute the sum of [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex].
- Compute [tex]\( V \)[/tex] using the formula [tex]\( V = \frac{a^2 + b^2}{2} \)[/tex].

Step 3: Print the results
- Output the results of the two operations.

Here is the complete Java program:

```java
public class Main {
public static void main(String[] args) {
// Step 1: Declare and initialize the variables
int a = 3;
int b = 6;
int c = 9;

// Step 2: Perform the arithmetic operations
int sum_abc = a + b + c;
double V = (a a + b b) / 2.0;

// Step 3: Print the results
System.out.println("The sum of a, b, and c is: " + sum_abc);
System.out.println("The value of V is: " + V);
}
}
```

Explanation:
1. We declare three integer variables [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex] and assign them the values 3, 6, and 9 respectively.
2. We calculate the sum [tex]\( a + b + c \)[/tex] and store it in the variable [tex]\( sum\_abc \)[/tex].
3. We calculate [tex]\( V \)[/tex] using the formula [tex]\( V = \frac{a^2 + b^2}{2} \)[/tex] and store it in the variable [tex]\( V \)[/tex]. Note that we use `2.0` to ensure that the division results in a double (floating-point division).
4. We print the results using `System.out.println`.

Running this program will produce the following output:

```
The sum of a, b, and c is: 18
The value of V is: 22.5
```

This output confirms that the sum of [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex] is 18, and the calculated value of [tex]\( V \)[/tex] is 22.5.