Find Square()

Step 1: Define the basics of the function

First and foremost, we need to prepare the basic structure of the function. In our Java function, we'll call it 'findSquare'. We'll declare our function 'findSquare', which takes one parameter, a number that we'll call 'num'. To simply declare the function without adding any logic to it, we refer the next code block.

public static int findSquare(int num) {

}

Step 2: Define the logic of the function

After laying out the basic structure of the function, we can now introduce the logic that does the actual work, which is squaring the number. We'll accomplish this in Java with the aid of the Math.pow() function. This function requires two parameters: the base number and the power to which it will be raised. In our case, both will be 'num'. Save this result in an integer variable named 'square'.

public static int findSquare(int num) {
    int square = (int) Math.pow(num, 2);
}

Step 3: Return the result

Finally, we should return the computed result. In Java, this is done using the 'return' keyword followed by the variable we want to return.

public static int findSquare(int num) {
    int square = (int) Math.pow(num, 2);
    return square;
}

Conclusion:

There you have it: a simple function in Java that will find the square of a given number. This is a simple but useful function, and it can be a basic component in larger systems or applications where mathematical calculations are required.