Oracle 1z0-809 Exam Dumps

Given:class UserException extends Exception { }class AgeOutOfLimitException extends UserException { }and the code fragment:class App {public void doRegister(String name, int age)throws UserException, AgeOutOfLimitException {if (name.length () <= 60) {throw new UserException ();} else if (age > 60) {throw new AgeOutOfLimitException ();} else {System.out.println(“User is registered.”);}}public static void main(String[ ] args) throws UserException {App t = new App ();t.doRegister(“Mathew”, 60);}}What is the result?

What is true about the java.sql.Statement interface?

Given:interface Rideable {Car getCar (String name); }class Car {private String name;public Car (String name) {this.name = name;}}Which code fragment creates an instance of Car?

Given:public class Customer {private String fName;private String lName;private static int count;public customer (String first, String last) {fName = first, lName = last;++count;}static { count = 0; }public static int getCount() {return count; }}public class App {public static void main (String [] args) {Customer c1 = new Customer(“Larry”, “Smith”);Customer c2 = new Customer(“Pedro”, “Gonzales”);Customer c3 = new Customer(“Penny”, “Jones”);Customer c4 = new Customer(“Lars”, “Svenson”);c4 = null;c3 = c2;System.out.println (Customer.getCount());}}What is the result?

Given the code fragment:List<String> empDetails = Arrays.asList(“100, Robin, HR”,“200, Mary, AdminServices”,“101, Peter, HR”);empDetails.stream().filter(s-> s.contains(“1”)).sorted().forEach(System.out::println); //line n1What is the result?

Given the code fragment:List<String> listVal = Arrays.asList(“Joe”, “Paul”, “Alice”, “Tom”);System.out.println (// line n1);Which code fragment, when inserted at line n1, enables the code to print the count of stringelements whose length is greater than three?

Given the code fragment:BiFunction<Integer, Double, Integer> val = (t1, t2) -> t1 + t2;//line n1System.out.println(val.apply(10, 10.5));What is the result?

Given:public class Counter {public static void main (String[ ] args) {int a = 10;int b = -1;assert (b >=1) : “Invalid Denominator”;int = a / b;System.out.println (c);}}What is the result of running the code with the –da option?

Given that /green.txt and /colors/yellow.txt are accessible, and the code fragment:Path source = Paths.get(“/green.txt);Path target = Paths.get(“/colors/yellow.txt);Files.move(source, target, StandardCopyOption.ATOMIC_MOVE);Files.delete(source);Which statement is true?

Given the code fragment:Path source = Paths.get (“/data/december/log.txt”);Path destination = Paths.get(“/data”);Files.copy (source, destination);and assuming that the file /data/december/log.txt is accessible and contains:10-Dec-2014 – Executed successfullyWhat is the result?

Given the code fragment:List<Integer> nums = Arrays.asList (10, 20, 8):System.out.println (//line n1);Which code fragment must be inserted at line n1 to enable the code to print the maximumnumber in the nums list?

Given the code fragment:BiFunction<Integer, Double, Integer> val = (t1, t2) -> t1 + t2; //line n1//line n2System.out.println(val.apply(10, 10.5));What is the result?

Given the code fragment:public void recDelete (String dirName) throws IOException {File [ ] listOfFiles = new File (dirName) .listFiles();if (listOfFiles ! = null && listOfFiles.length >0) {for (File aFile : listOfFiles) {if (!aFile.isDirectory ()) {if (aFile.getName ().endsWith (“.class”))aFile.delete ();}}}}Assume that Projects contains subdirectories that contain .class files and is passed as anargument to the recDelete () method when it is invoked.What is the result?

Given:final class Folder {//line n1//line n2public void open () {System.out.print(“Open”);}}public class Test {public static void main (String [] args) throws Exception {try (Folder f = new Folder()) {f.open();}}}Which two modifications enable the code to print Open Close? (Choose two.)

Given:class Book {int id;String name;public Book (int id, String name) {this.id = id;this.name = name;}public boolean equals (Object obj) { //line n1boolean output = false;Book b = (Book) obj;if (this.id = = b.id) {output = true;}return output;}}and the code fragment:Book b1 = new Book (101, “Java Programing”);Book b2 = new Book (102, “Java Programing”);System.out.println (b1.equals(b2)); //line n2Which statement is true?

Given:class ImageScanner implements AutoCloseable {public void close () throws Exception {System.out.print (“Scanner closed.”);}public void scanImage () throws Exception {System.out.print (“Scan.”);throw new Exception(“Unable to scan.”);}}class ImagePrinter implements AutoCloseable {public void close () throws Exception {System.out.print (“Printer closed.”);}public void printImage () {System.out.print(“Print.”); }}and this code fragment:try (ImageScanner ir = new ImageScanner();ImagePrinter iw = new ImagePrinter()) {ir.scanImage();iw.printImage();} catch (Exception e) {System.out.print(e.getMessage());}What is the result?

Given:class Worker extends Thread {CyclicBarrier cb;public Worker(CyclicBarrier cb) { this.cb = cb; }public void run () {try {cb.await();System.out.println(“Worker…”);} catch (Exception ex) { }}}class Master implements Runnable { //line n1public void run () {System.out.println(“Master…”);}}and the code fragment:Master master = new Master();//line n2Worker worker = new Worker(cb);worker.start();You have been asked to ensure that the run methods of both the Worker and Masterclasses are executed.Which modification meets the requirement?

Which two code blocks correctly initialize a Locale variable? (Choose two.)

Given the code fragment:String str = “Java is a programming language”;ToIntFunction<String> indexVal = str: : indexOf; //line n1int x = indexVal.applyAsInt(“Java”);//line n2System.out.println(x);What is the result?

Given the definition of the Vehicle class:Class Vehhicle {int distance;//line n1Vehicle (int x) {this distance = x;}public void increSpeed(int time) {//line n2int timeTravel = time;//line n3class Car {int value = 0;public void speed () {value = distance /timeTravel;System.out.println (“Velocity with new speed”+value+”kmph”);}}new Car().speed();}}and this code fragment:Vehicle v = new Vehicle (100);v.increSpeed(60);What is the result?

Given:public class product {int id; int price;public Product (int id, int price) {this.id = id;this.price = price;}public String toString() { return id + “:” + price; }}and the code fragment:List<Product> products = Arrays.asList(new Product(1, 10),new Product (2, 30),new Product (2, 30));Product p = products.stream().reduce(new Product (4, 0), (p1, p2) -> {p1.price+=p2.price;return new Product (p1.id, p1.price);});products.add(p);products.stream().parallel().reduce((p1, p2) - > p1.price > p2.price ? p1 : p2).ifPresent(System.out: :println);What is the result?

Given that course.txt is accessible and contains:Course : : Javaand given the code fragment:public static void main (String[ ] args) {int i;char c;try (FileInputStream fis = new FileInputStream (“course.txt”);InputStreamReader isr = new InputStreamReader(fis);) {while (!isr.close()) { //line n1isr.skip(2);i = isr.read ();c = (char) i;System.out.print(c);}} catch (Exception e) {e.printStackTrace();}}What is the result?

Assume customers.txt is accessible and contains multiple lines.Which code fragment prints the contents of the customers.txt file?

Given the code fragments:class Caller implements Callable<String> {String str;public Caller (String s) {this.str=s;}public String call()throws Exception { return str.concat (“Caller”);}}class Runner implements Runnable {String str;public Runner (String s) {this.str=s;}public void run () { System.out.println (str.concat (“Runner”));}}andpublic static void main (String[] args) InterruptedException, ExecutionException {ExecutorService es = Executors.newFixedThreadPool(2);Future f1 = es.submit (new Caller (“Call”));Future f2 = es.submit (new Runner (“Run”));String str1 = (String) f1.get();String str2 = (String) f2.get();//line n1System.out.println(str1+ “:” + str2);}What is the result?

Given the code fragment:List<String> nL = Arrays.asList(“Jim”, “John”, “Jeff”);Function<String, String> funVal = s -> “Hello : “.concat(s);nL.Stream().map(funVal).forEach(s-> System.out.print (s));What is the result?