// to validate the number is a prime or not
package learning.java;
import java.util.Scanner;
public class Primenumber
{
public static void main(String[] args)
{
Scanner Sc=new Scanner(System.in);
System.out.println("Please enter the number");
int number,i;
number=Sc.nextInt();
System.out.println("The number entered by the user is "+number);
if (number<0)
{
System.out.println("Invalid number");
}
else if(number==0)
{
System.out.println("0 is a Even number, it is not prime number");
}
else if (number==1)
{
System.out.println("1 is a Odd number, it is not prime number");
}
for( i=2;i<=number;i++)
{
if (number%i==0)
{
if(i==number)
{
System.out.println(number + " is Prime Number");
}
else
{
System.out.println(number + " is not Prime Number");
}
break;
}
}
}
}
package learning.java;
import java.util.Scanner;
public class Primenumber
{
public static void main(String[] args)
{
Scanner Sc=new Scanner(System.in);
System.out.println("Please enter the number");
int number,i;
number=Sc.nextInt();
System.out.println("The number entered by the user is "+number);
if (number<0)
{
System.out.println("Invalid number");
}
else if(number==0)
{
System.out.println("0 is a Even number, it is not prime number");
}
else if (number==1)
{
System.out.println("1 is a Odd number, it is not prime number");
}
for( i=2;i<=number;i++)
{
if (number%i==0)
{
if(i==number)
{
System.out.println(number + " is Prime Number");
}
else
{
System.out.println(number + " is not Prime Number");
}
break;
}
}
}
}
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