Consider the following statements: Which of the following statements are valid?...

Consider the following statements:

Which of the following statements are valid? If they are invalid, explain why.

a. value = cube (num1, 15.0, num3);

b. System.out.println(cube(num1, num3, num2));

c. System.out.println(cube(6.0, 8.0, 10.5));

d. System.out.println(num1 + " " + num3);

e. System.out.println(cube(num1, num3));

f. value = cube(num1, int2, num3);

g. value = cube(7, 8, 9);