5-10 Prime_Display

Post date: Apr 7, 2014 2:11:08 PM

package prime_display;

import java.util.Scanner;

public class Prime_Display

{

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

System.out.print("Please choose one of them 1 , 2 : ");

int number=input.nextInt();

switch(number)

{

case 1:Display1(); break;

case 2:Display2(); break;

default: System.out.println("invalid number");

}

}

public static void Display1()

{

for (int i = 2; i <=100; i++)

{

boolean flag=true;

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

if(i%j==0)

flag=false;

if(flag&&i%10>=5)

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

}

System.out.println();

}

public static void Display2()

{

for (int i = 2; i <=100; i++)

{

boolean flag=true;

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

if(i%j==0)

flag=false;

if(flag&&i%10<5)

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

}

System.out.println();

}

}