public class exa_04 {
static int div_3(int b[])
{
int ss=0,i;
for(i=0;i<b.length;i++)
if(b[i]%3==0)
ss+=b[i];
return ss;
}
public static void main(String []args)
{
int s=0;
int []a= {10,20,30,40,50,60,70,80,90};
s=div_3(a);
System.out.println("能够被3整除的数字之和是："+s);
}
}
运行结果：