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我對如何調用數組靜態方法的問題。就我而言,我相信我的陣列靜態方法是很好的,因爲編譯器不抱怨,但是當我把它這樣做,說:double cannot be converted to double[]
我該如何解決這個問題?任何幫助將不勝感激。下面是我的代碼片段:陣列和靜態方法的java
// 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);
'allowedValuesX(x [i],y [j],choice);'vs'double [] x,double [] y,int choice'。你看得到差別嗎?您的簽名期待一個數組,但你從陣列中的單個值調用它(又名:單'double')。 –