1、输出100以内的素数
public class Main{
public static void main(String[] args) {
// TODO Auto-generated method stub
for (int n=2; n<=100; n++)
{
boolean isPrime = true;
for (int i=2; i<n; i++)
{
if (n%i == 0)
{
isPrime = false;
// System.out.print(n+"不是素数");
break;
}
}
if (isPrime)
{
System.out.print(n+" ");
}
}
}
}
2、输出前50个素数
public class Main{
public static void main(String[] args) {
// TODO Auto-generated method stub
int count=0;
for (int n=2; ; n++)
{
boolean isPrime = true;
for (int i=2; i<n; i++)
{
if (n%i == 0)
{
isPrime = false;
// System.out.print(n+"不是素数");
break;
}
}
if (isPrime)
{
count = count+1;
if (count<=50)
{
System.out.print(n+" ");
}
}
}
}
}