Primer Number Generator in Java

I wrote this program to ask the user to give a number and then the program will list down the prime numbers on the screen using Java programming language.

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Sample Program Output

Program Listing

Prime_Number_Generator.java

import java.util.Scanner;

// Written By Jake R.Pomperada,MAED-IT

// January 4, 2020   Saturday

// jakerpomperada@gmail.com

// Bacolod City, Negros Occidental Philippines

public class Prime_Number_Generator {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

Scanner Input = new Scanner(System.in);

System.out.println();

System.out.println("\tPrimer Number Generator in Java");

System.out.println();

System.out.print("\tGive a Number : ");

int num = Input.nextInt();

System.out.println("\n");

System.out.print("\tList of Prime Numbers");

System.out.println("\n");

System.out.print("\t");

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

if (IsPrime(i)){

System.out.print(i+" ");

}

}

}

private static boolean IsPrime(int num) {

boolean flag = true;

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

if (num % i == 0){

flag = false;

break;

}

}

return flag;

}

}