Create a pyramid number using Java NetBeans (bot)
import java.util.Scanner;
public class PyramidNumber {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter the number of rows: ");
int rows = input.nextInt();
int number = 1;
for (int i = 1; i <= rows; i++) {
for (int j = 1; j <= i; j++) {
System.out.print(number + " ");
number++;
}
System.out.println();
}
}
}
number
variable keeps track of the current number that should be printed, and is incremented for each number in the pyramid.Give me sample code in php ASN range to CIDRSure, I can help you with that! Here's a code example in Java using NetBeans to create a pyramid of numbers:
Java:import java.util.Scanner; public class PyramidNumber { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter the number of rows: "); int rows = input.nextInt(); int number = 1; for (int i = 1; i <= rows; i++) { for (int j = 1; j <= i; j++) { System.out.print(number + " "); number++; } System.out.println(); } } }
This code prompts the user to enter the number of rows they want in the pyramid, and then uses nested loops to print out the pyramid of numbers. Thenumber
variable keeps track of the current number that should be printed, and is incremented for each number in the pyramid.
I hope this helps! Let me know if you have any questions.
Sure, here's an example PHP function that takes an ASN range (e.g. "AS1234") and converts it to a CIDR notation range:Give me sample code in php ASN range to CIDR
function asnToCidr($asn) {
// Get the AS number from the string (e.g. "1234")
$asNumber = substr($asn, 2);
// Lookup the network range for the AS number
$network = getNetworkForAsn($asNumber);
// Convert the network range to CIDR notation
$cidr = ipRangeToCidr($network['start'], $network['end']);
return $cidr;
}
function getNetworkForAsn($asNumber) {
// Lookup the network range for the AS number from a database or API
// In this example, we'll just hardcode some values
switch ($asNumber) {
case '1234':
return array(
'start' => '192.168.0.0',
'end' => '192.168.255.255'
);
case '5678':
return array(
'start' => '10.0.0.0',
'end' => '10.255.255.255'
);
default:
return null;
}
}
function ipRangeToCidr($startIp, $endIp) {
// Convert the start and end IP addresses to integers
$start = ip2long($startIp);
$end = ip2long($endIp);
// Calculate the number of bits required to represent the IP range
$bits = 32 - log(($end - $start) + 1, 2);
// Format the CIDR notation range (e.g. "192.168.0.0/16")
$cidr = $startIp . '/' . $bits;
return $cidr;
}
asnToCidr
function with an ASN string (e.g. "AS1234") and it will return a CIDR notation range (e.g. "192.168.0.0/16"). The getNetworkForAsn
function can be replaced with a call to an external API or database to look up the network range for the given AS number. ipRangeToCidr
function calculates the required number of bits to represent the IP range using the formula 32 - log2(end - start + 1)
. This assumes that the start and end IP addresses are inclusive.Can you code it in python?Sure, here's an example PHP function that takes an ASN range (e.g. "AS1234") and converts it to a CIDR notation range:
PHP:function asnToCidr($asn) { // Get the AS number from the string (e.g. "1234") $asNumber = substr($asn, 2); // Lookup the network range for the AS number $network = getNetworkForAsn($asNumber); // Convert the network range to CIDR notation $cidr = ipRangeToCidr($network['start'], $network['end']); return $cidr; } function getNetworkForAsn($asNumber) { // Lookup the network range for the AS number from a database or API // In this example, we'll just hardcode some values switch ($asNumber) { case '1234': return array( 'start' => '192.168.0.0', 'end' => '192.168.255.255' ); case '5678': return array( 'start' => '10.0.0.0', 'end' => '10.255.255.255' ); default: return null; } } function ipRangeToCidr($startIp, $endIp) { // Convert the start and end IP addresses to integers $start = ip2long($startIp); $end = ip2long($endIp); // Calculate the number of bits required to represent the IP range $bits = 32 - log(($end - $start) + 1, 2); // Format the CIDR notation range (e.g. "192.168.0.0/16") $cidr = $startIp . '/' . $bits; return $cidr; }
You can call theasnToCidr
function with an ASN string (e.g. "AS1234") and it will return a CIDR notation range (e.g. "192.168.0.0/16"). ThegetNetworkForAsn
function can be replaced with a call to an external API or database to look up the network range for the given AS number.
Note that theipRangeToCidr
function calculates the required number of bits to represent the IP range using the formula32 - log2(end - start + 1)
. This assumes that the start and end IP addresses are inclusive.