java-Java數組求和，新手求問

Java數組求和，新手求問

public class T12 {
public static double sumArray(double[] array){
static double sum = 0;
int i;
for(i=0;i<array.length;i++)
sum += array[i];
return sum;
}
public static void main(String[] args) {
double[] array = {1,2,3,4,5,6,7,8,9};
double a;
a = T12.sumArray(double[] array);
System.out.println(a);
}
}
上面代碼有什麼問題嗎，為什麼不能運行？

最佳回答：

 public class T12 {
public static double sumArray(double[] array){
static double sum = 0; //這裡改成  double sum = 0;，局部變量不能定義static
int i;
for(i=0;i<array.length;i++)
sum += array[i];
return sum;
}
public static void main(String[] args) {
double[] array = {1,2,3,4,5,6,7,8,9};
double a;
a = T12.sumArray(double[] array);  //去掉double[] ，傳參，不需要數組定義
System.out.println(a);
}
}