public class Test03_method {
public static void main(String[] args) {
int c=sum(10,20);
System.out.println("두수합:"+ c);
int d=sum(10,20,30);
System.out.println("세수합:"+ d);
}
public static int sum(int ... a) {//가변길이인자->전달된 매개변수값들이 배열로 만들어짐
int s=0;
for(int i=0;i<a.length;i++) {
s += a[i];
}
return s;
}
}