calculateSurfaceAreaCube()

Step 1: Understanding the Problem

In order to calculate the surface area of a cube, we first need to understand that a cube has six faces and all the faces have equal dimensions. The surface area of a cube is six times the area of one face. Mathematically, it can be represented as 6a² where 'a' is the length of a side of the cube.7

Step 2: Setting Up the Class and Method

In Java, we need to create a class and within it, we will declare the method which will calculate the surface area. We will name this class as Cube.

public class Cube {

   // our method will be here

}

Step 3: Creating the Method

Now, we will declare our method that calculates the surface area. This method will take the length of a side as input and return the surface area. Let's name this method calcSurfaceArea.

public class Cube {

   public static double calcSurfaceArea(double sideLength) {
      // calculation logic will be here
      return 0;
   }
}

Step 4: Implementing the Calculation Logic

We will now implement the logic for calculating the surface area using the formula we discussed in step 1. We will multiply the square of the side length with 6 and return the result.

public class Cube {

   public static double calcSurfaceArea(double sideLength) {
      return 6 * Math.pow(sideLength, 2);
   }
}

Step 5: Conclusion

Great, we now have a Java method which can calculate the surface area of a cube when provided the length of one side. Let's recall what our class and method looks like:

public class Cube {

   public static double calcSurfaceArea(double sideLength) {
      return 6 * Math.pow(sideLength, 2);
   }
}

Now you can simply call this method with the side length of the cube, and you will get the surface area in return!