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1. FileStream private static void copyFileUsingFileStreams(File source, File dest) throws IOException { InputStream input = null; OutputStream output = null; try { input = new FileInputStream(source); output = new FileOutputStream(dest); byte[] buf = new byte[1024]; int bytesRead; while ((bytesRead = input.read(buf)) > 0) { output.write(buf, 0, bytesRead); } } finally { input.close(); output.clo..

아파치의 RandomStringUtils 사용 import org.apache.commons.lang.RandomStringUtils; public class RandomStringUtilsTest { int length = 10; String randomString = RandomStringUtils.random(length, true, true); System.out.println(randomString); } Maven Repositoryhttp://mvnrepository.com/artifact/org.apache.commons/commons-lang3/3.3.2 org.apache.commons commons-lang3 3.3.2 [출처] 자바 (Java)에서 랜덤 (Random) 문자열 (St..

import java.lang.reflect.Method; public class BrowserControl { /** * Method to Open the Broser with Given URL * * @param url */ public static void openUrl(String url) { String os = System.getProperty("os.name"); Runtime runtime = Runtime.getRuntime(); try { // Block for Windows Platform if (os.startsWith("Windows")) { String cmd = "rundll32 url.dll,FileProtocolHandler " + url; Process p = runtim..

GUI 기반의 Java Decompiler - JD-GUI [출처] Java Decompiler