Program to print prime numbers in java

package com.instaceofjava;
public class primenumbers {

public static void main(String[] args) {

int num=50;
int count=0;

for(int i=2;i<=num;i++){

count=0;

for(int j=2;j<=i/2;j++){

if(i%j==0){
count++;
break;
}

}

if(count==0){

System.out.println(i);

}

}

}

}
Output:
2
3
5
7
11
13
17
19
23
29
31
37
41
43
47