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Solution Review: Visualize a Vector and Its Components

Explore how to decompose a vector into its x and y components by applying Java Math methods. Learn to convert angle values to radians and use cosine and sine functions to compute components effectively, enhancing your understanding of vectors in Java.

Rubric criteria

Solution

Java
class VectorVisualization
{
public static void main(String args[])
{
System.out.println("X-component: " + getXcomp(5, 45.0));
System.out.println("Y-component: " + getYcomp(5, 45.0));
}
// Method to find x componnent
public static Double getXcomp(Integer magnitude, Double direction)
{
return magnitude * Math.cos(Math.toRadians(direction));
}
// Method to find y componnent
public static Double getYcomp(Integer magnitude, Double direction)
{
return magnitude * Math.sin(Math.toRadians(direction));
}
}

Rubric-wise explanation


Point 1:

Look at line 11. We declare the header of the getXComp method: public Double getXComp(Integer magnitude, Double direction).

Point 2, 3, 4:

We calculate the x component at line 13. Notice that we first convert the angle (direction) into radians using the Math.toRadians() function. Then, we apply the Math.cos() function on the angle and ...