The KISS principle (Keep It Simple, Stupid) is a design principle that suggests that simplicity should be a key goal and unnecessary complexity should be avoided. This principle is commonly used in software development to make code more understandable, maintainable, and efficient.

One example of applying the KISS principle in programming is by using simple and straightforward algorithms for a given task. For instance, let’s say you are building a calculator program that needs to perform arithmetic operations such as addition, subtraction, multiplication, and division. Instead of using a complex algorithm that involves multiple steps, you can use a simple algorithm that performs the operation in a few steps.

Here’s an example of a simple algorithm for adding two numbers

```
public static int add(int a, int b) {
return a + b;
}
```

JavaThis function takes two parameters `a`

and `b`

, adds them together, and returns the result. The code is easy to read and understand, making it simpler to maintain and modify in the future.

In contrast, here’s an example of a more complex algorithm that performs the same operation:

```
public static int add(int a, int b) {
int sum = 0;
while (b != 0) {
sum = a ^ b;
b = (a & b) << 1;
a = sum;
}
return sum;
}
```

JavaWhile this algorithm is more efficient in terms of computation time, it is also more complex and difficult to read and understand. Using complex algorithms unnecessarily can make code harder to maintain and modify in the future, violating the KISS principle.