In this tutorial ... you are going to create in JAVA a small program that will show you a list of primary numbers ...

these are really basic programs and really easy to be made!

Here is the code:

CODE
import java.io.*;
class list{
public static void main(String[]args) throws IOException{
  BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
  
int n;
System.out.println("Insert number:");
n=Integer.parseInt(stdin.readLine());

int[] prim=new int[n];
prim[0]=2;
prim[1]=3;

int k=1;
int nr=5;
int j,primj;

while(k<=n-2) {
  j=0;
  primj=prim[j];
while((primj*primj<=nr) && (nr%primj!=0)) primj=prim[++j];

if(primj*primj>nr) prim[++k]=nr;
nr=n+2;
}

for(k=0;k<n;k++)
System.out.println(k+ " : "+prim[k]);
}
}


Here is the code`s screenshot:



Now ... this is the result, first you need to enter a number and then the list will be showed ...