C)
Write a Java program that prompts
the user for an integer and then prints out all prime numbers up to that
integer.
Program:
import
java.io.*;
class Prime
{
int i,j,count;
void seq(int n)
{
System.out.print("The
Prime Numbers Upto "+n+" Are: ");
for(i=1;i<=n;i++)
{
count=0;
for(j=1;j<=i;j++)
{
if(i%j
== 0)
count++;
}
if(count==2)
System.out.print("
"+i);
}
}
public static void main(String args[])
throws IOException
{
int n;
Prime ob=new Prime();
BufferedReader br=new
BufferedReader(new InputStreamReader(System.in));
System.out.print("\nEnter The
Value Of n: ");
n=Integer.parseInt(br.readLine());
ob.seq(n);
}
}
Output:
Enter The Value
Of n: 21
The Prime
Numbers Upto 21 Are: 2 3 5
7 11 13
17 19
