Question

write a program to print all the prime numbers between 1 and 100.

Answer 1

import java.lang. * ;
import java.io. * ;
class PrimeNumbers
{
public static void main (String[] args)
{
int i =0;
int num =0;
//Empty String
String primeNumbers = "";

for (i = 1; i <= 100; i++)
{
int counter=0;
for(num =i; num>=1; num--)
{
if(i%num==0)
{
counter = counter + 1;
}
}
if (counter ==2)
{
//Appended the Prime number to the String
primeNumbers = primeNumbers + i + " ";
}
}
System.out.println("Prime numbers from 1 to 100 are :");
System.out.println(primeNumbers);
}
}

Answer 2

In qb64,

CLS
FOR X = 1 TO 100
IF X MOD 2 <> 0 THEN PRINT X
NEXT X
END