[英]arrays and static methods java
I have a question on how to call an array static method. 我对如何调用数组静态方法有疑问。 In my case, I believe that my array static method is fine because the compiler does not complain about it, but it does when I call it, it says
double cannot be converted to double[]
How can I fix this? 就我而言,我认为我的数组静态方法很好,因为编译器不会抱怨它,但是在我调用它时确实如此,它说
double cannot be converted to double[]
如何解决此问题? Any help will be greatly appreciated. 任何帮助将不胜感激。 Below is a snippet of my code:
以下是我的代码片段:
// create allowed x values for calculation static method
public static double[] allowedValuesX(double[] x, double[] y, int choice){
double allowedVx[] = new double[choice];
int i = 0;
for(i = 0; i < allowedVx.length; i++){
if((Math.pow(x[i], 2) + (Math.pow(y[i], 2))) <= 1){
allowedVx[i] = x[i];
}
}
return allowedVx;
}
// main method
public static void main(String args[]){
// create Scanner object
Scanner in = new Scanner(System.in);
// call to promptUser
promptUser();
// create variable for recieving user input
int choice = in.nextInt();
double x[] = new double[choice];
int i = 0;
for(i = 0; i < x.length; i++){
x[i] = Math.random();
}
// call to allowed x values
allowedValuesX(x[i], y[j], choice);
You are passing specific array elements when calling allowedValuesX
: 调用
allowedValuesX
时,您正在传递特定的数组元素:
allowedValuesX(x[i], y[j], choice);
But you should pass the arrays themselves, to match the parameter types of the method: 但是您应该自己传递数组,以匹配方法的参数类型:
allowedValuesX(x, y, choice);
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