Java program to print prime numbers between 1 and 100

by Eric K · April 20, 2017

Below Java, program code will print prime numbers between 1 and 100.

public class PrintPrimeNumbers {
    public static void main(String args[])
    {
        int k =0;
        int n =0;
        //Empty String
        String  primeNums = "";

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