double num1, num2, num3; int int1, int2, int3; double value; num1 = 5.0; num2 =

Question

double num1, num2, num3;
int int1, int2, int3;
double value;

num1 = 5.0; num2 = 6.0; num3 = 3.0;
int1 = 4; int2 = 7; int3 =8;

and the method heading:
public static double cube(double a, double b, double c)

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);

Explanation / Answer

please rate - thanks

double num1, num2, num3;
int int1, int2, int3;
double value;

num1 = 5.0; num2 = 6.0; num3 = 3.0;
int1 = 4; int2 = 7; int3 =8;

and the method heading:
public static double cube(double a, double b, double c)

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

a. value = cube (num1, 15.0, num3);                                  valid
b. System.out.println(cube(num1, num3, num2));            valid
c. System.out.println(cube(6.0, 8.0, 10.5));                      valid
d. System.out.println(num1 + " " + num3);                  valid
e. System.out.println(cube(num1, num3));               invalid--cube needs 3 parameters
f. value = cube(num1, int2, num3);                       valid - will convert(cast) the integer to double
g. value = cube(7, 8, 9);                                      valid - will convert (cast) the integers to double

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