public class Test{
public void method(int num){
boolean flag = false;
if(num<=1){
System.out.println(num+"不是素数");
}else{
for(int i=2;i
flag = true;
}
}
if(flag){
System.out.println(num+"不是素数");
}else{
System.out.println(num+"是素数");
}
}
}
public static void main(String[] args) {
new Test().method(9);
}
}