Mark

1.Which is the first line containing a compiler error?String url = “jdbc:hsqldb:file:zoo”;try (var conn = DriverManager.getConnection(url);var ps = conn.prepareStatement();var rs = ps.executeQuery(“SELECT * FROM swings”)) {while (rs.next()) {System.out.println(rs.getInteger(1));}}A) Line 3 2.Which interfaces or classes are in a database-specific JAR file?Each…

import java.io.*; import java.util.*; public class Test{     public static void main(String[] args){         Scanner in = new Scanner(System.in);         String string1,string2;         string1 = in.nextLine();         string2 = in.nextLine();         if(string1.equals(string2))     System.out.println(“The two strings are equal.”); else     System.out.println(“The two strings are not equal.”);     } }…

1.Which of the following correctly create Path instances?Each correct answer represents a complete solution. Choose all that apply.A) FileSystems.getDefault().getPath(“puma.txt”) new java.io.File(“tiger.txt”).toPath() Path.of(Path.of(“.”).toUri()) 2.Suppose that the working directory is /weather and the absolute path represents a file that exists within the…

1. What is the output of the following code snippet? 1. int temperature = 4; 2. long humidity = -temperature + temperature * 3; 3. if (temperature>=4) 4. if (humidity < 6) System.out.println(“Too Low”); 5. else System.out.println(“Just Right”); 6. else System.out.println(“Too High”);  Just Right  2. What…

1.Assuming this class is accessed by only a single thread at a time, whatis the result of calling the countIceCreamFlavors() method?import java.util.stream.LongStream;public class Flavors {private static int counter;public static void countIceCreamFlavors() {counter = 0;Runnable task = () -> counter++;LongStream.range(0, 500).forEach(m…

1.Which of the following statements are true about a module containing afile named module-info.java? The content of the file is:module com.food.supplier {}Each correct answer represents a complete solution. Choose all that apply.A) No packages inside the module are automatically exported.…

1.Which statement about the following class is correct?class Problem extends Exception {public Problem() {}}class YesProblem extends Problem {}public class MyDatabase {public static void connectToDatabase() throw Problem {throws new YesProblem();}public static void main(String[] c) throw Exception {connectToDatabase();}}A) None of these 2.Which…

1. What is the output of the following code? public class Fish { The code does not compile. 2. What is the output of the following code?var numbers = “012345678”.indent(1);numbers = numbers.stripLeading();System.out.println(numbers.substring(1, 3));System.out.println(numbers.substring(7, 7));System.out.print(numbers.substring(7));Each correct answer represents a part of…

1.Which of the following throw an exception when an Optional is empty?Each correct answer represents a complete solution. Choose all that apply.A) opt.orElseThrow(); opt.orElseThrow(RuntimeException::new); opt.get(); 2.Assume that the directory /animals exists and is empty. What is theresult of executing the…