求1到100之间的素数

public class Prime{
public boolean isPrime(int m){
boolean flag = true;
int n = (int)Math.sqrt(m);
for(int i=2;i<=n;i++){
if(m%i==0){
flag = false;
break;
}
}
return flag;
}
public void display(){
for(int i = 1;i<=100;i++){
if(isPrime(i)){
System.out.println(i);
}
}
}
public static void main(String[] args){
Prime prime = new Prime();
prime.display();
}
}