Determine Prime Numbers in Java programme

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package prima;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class BilPrima {

public BilPrima() {
}

public static void main(String[] args) throws IOException{
int i,batasBil=0;
BufferedReader bf=new BufferedReader(
new InputStreamReader(System.in));
System.out.println("Masukkan Batas Bil:");
batasBil=Integer.parseInt(bf.readLine());
for(i=2;i<=batasBil;i++){
int j;
for (j=2;j<=i;j++){
int n=i%j;
if(n==0){
break;
}
}
if (i==j){
System.out.println(i);
}

}

}

}