JAVA类集浅谈之三

public class C3_18
{
public static void main(String[] args)
{
int n=0,m,j,i;
for(i=3;i<=100;i+=2)//外层循环
{
m=(int)Math.sqrt((double)i);
for(j=2;j<=m;j++)//内嵌循环
if((i%j)==0) break;//内嵌循环结束
if(j>=m+1)
{
if(n%6==0) System.out.print("\n");//换行控制
System.out.print(i+"  ");n++;
}
}//外层循环结束
}
}