Write a Java program to compute the sum of the first 100 prime numbers

Introduction

In this demo I have used NetBeans IDE 8.2 for debugging purpose. But you can use any java programming language compiler as per your availability..

import java.util.*;
 public class Javaexcercise {
 public static void main(String[] args)
 {
    int sum = 1;
     int ctr = 0; 
     int num = 0; 
 
        while (ctr < 100) {
            num++; 
            if (num % 2 != 0) { 
            // check if the number is even
                if (is_Prime(num)) {
                    sum += num; 
                    ctr++; 
                }
            }	
        }
        System.out.println("\nSum of the first 100 prime numbers is: "+sum); 	
     }
 
   	public static boolean is_Prime(int num) {
        for (int i = 3; i * i <= num; i+= 2) {
            if (num % i == 0) {
                return false; 
            }
        }
        return true;
    }
}

Result

Write a Java program to compute the sum of the first 100 prime numbers
Write a Java program to compute the sum of the first 100 prime numbers

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