JAVA新特性--可变参数函数

package varibalargument;

public class Variable {

public Variable() {
// TODO Auto-generated constructor stub
}
public static int add(int...x){
int sum=0;
for(int i=0;i<x.length;i++){
sum += x[i];
}
return sum;
}
}

package varibalargument;

public class VariableTest {

public VariableTest() {
// TODO Auto-generated constructor stub
}

public static void main(String[] args) {
// TODO Auto-generated method stub
int sum;
sum = Variable.add(1);
System.out.println(sum);
sum = Variable.add(1,2,3,4);
System.out.println(sum);
}

}