A Color class has three public, integer -returning accessor methods : getRed, getGreen, and getBlue, and three protected, void-returning mutator methods : setRed, setGreen, setBlue, each of which accepts an integer parameter and assigns it to the corresponding color component.
LANGUAGE: JAVA
CHALLENGE:
A Color class has three public, integer -returning accessor methods : getRed, getGreen, and getBlue, and three protected, void-returning mutator methods : setRed, setGreen, setBlue, each of which accepts an integer parameter and assigns it to the corresponding color component.
The class , AlphaChannelColor– a subclass of Color– has an integer instance variable , alpha, containing the alpha channel value , representing the degree of transparency of the color. AlphaChannelColor also has a method named dissolve (void-returning, and no parameters ), that causes the color to fade a bit . It does this by incrementing (by 1) all three color components (using the above accessor and mutator methods ) as well as the alpha component value .
Write the dissolve method .
SOLUTION:
public void dissolve() { setRed(getRed()+1); setGreen(getGreen()+1); setBlue(getBlue()+1); alpha++; }