thx man

did u copy me lol

stop copying me XD

public class Main { public static void main(String[] args) { int N = 100; boolean[] isPrime = new boolean[N + 1]; for (int i = 2; i <= N; i++) { isPrime[i] = true; } for (int i = 2; i*i <= N; i++) { if (isPrime[i]) { for (int j = i; i*j <= N; j++) { isPrime[i*j] = false; } } } // count primes int primes = 0; for (int i = 2; i <= N; i++) { if (isPrime[i]) primes++; } System.out.println( "The number of primes <= " + N + " is " + primes); } }

package org.jb; public class XD { private int shift; public XD(int shift) { this.shift = shift; } public static void main(String[] args) { // TODO Auto-generated method stub XD app = new XD(-3); String name = "XD"; String cipher = app.encode(name); System.out.println(name + "--->" + cipher); System.out.println(cipher + "--->" + name); } public String transform(String text, int shift) { char [] a = new char[text.length()]; for (int i = 0; i < a.length; i++) { int diff = text.charAt(i) - 'A' + shift; if (diff < 0) diff+=26; if (diff >= 26) diff%= 26; a[i] = (char) ('A' + diff); } return String.valueOf(a); } public String encode(String text) { return transform(text, shift); } public String decode(String cipher) { return transform(cipher, -shift); } }

import java.util.*; import java.io.*; class Main { public static void main(String[] args) { double[] height = new double[30]; for (int i = 0; i < 30; i++) { height[i] = (Math.random()*((80-70)+1))+70; } Arrays.sort(height); double sum = 0; for (int i = 0; i < 30; i++) sum += height[i]; System.out.println(sum/height.length); } }