Java code to generat any first 100 prime numbers

First100PrimeGen.java

package com.hk.prime;

import java.util.Scanner;

public class First100Prime {
	
	int flag;
	int first;
	public First100Prime() {
		
		this.first=0;
		this.first=1;
	}
	public boolean isPrime(int number)
	{
		for(int i=2;i<number;i++)
		{
			if(number%i==0)
				return false;
			
		}
		return true;
		
	}
	public void genPrime(int howmany)
	{
		while(true)
		{
			if(isPrime(first))
			{
				System.out.print(first+" ");
				++flag;
				if(flag==howmany)
					break;
			}
			++first;
		}
	}
	public static void main(String[] args) {
		System.out.println("How many Prime you want to generate\n");
		int n=new Scanner(System.in).nextInt();
		new First100Prime().genPrime(n);
	}

}