Program to display first n prime numbers
package com.androidpro.in;
import java.util.*;
public class Main {
public static void main(String args[])
{
int n;
int status = 1;
int num = 3;
//For capturing the
value of n
Scanner scanner
= new Scanner(System.in);
System.out.println("Enter the
value of n:");
//The entered value
is stored in the var n
n =
scanner.nextInt();
if (n >= 1)
{
System.out.println("First
"+n+" prime numbers
are:");
//2 is a known prime number
System.out.println(2);
}
for ( int i = 2 ; i <=n ; )
{
for ( int j = 2 ; j <= Math.sqrt(num)
; j++ )
{
if ( num%j == 0 )
{
status = 0;
break;
}
}
if ( status != 0 )
{
System.out.println(num);
i++;
}
status = 1;
num++;
}
}
}
Output
Enter the value of n:
89
First 89 prime numbers are:
2
3
5
7
11
13
17
19
23
29
31
37
41
43
47
53
59
61
67
71
73
79
83
89
97
101
103
107
109
113
127
131
137
139
149
151
157
163
167
173
179
181
191
193
197
199
211
223
227
229
233
239
241
251
257
263
269
271
277
281
283
293
307
311
313
317
331
337
347
349
353
359
367
373
379
383
389
397
401
409
419
421
431
433
439
443
449
457
461
Process finished with exit code 0
