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…
3.1.1 import java.io.*; import java.util.*; public class Test{ public static void main(String[] args){ Scanner in = new Scanner(System.in); int num; num = in.nextInt(); if(num > 0){ System.out.println(“Positive”); } if(num < 0){ System.out.println(“Negative”); } if(num == 0){ System.out.println(“Zero”); } } }…
Q.1: Which of the following are legal entry point methods that can be run from the command line? A) 1. public final static void main(String[] args) 2. public static void main(String[] args) Q.2: Given the following classes, which of the…
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Other Links: Statistics Quiz Networking Quiz See other websites for quiz: Check on QUIZLET Check on CHEGG
Other Links: Statistics Quiz Networking Quiz See other websites for quiz: Check on QUIZLET Check on CHEGG
1) Which of the following can fill in the blanks in order to make this code compile? __________ a = __________.getConnection(url, userName, password);__________ b = a.prepareStatement(sql);__________ c = b.executeQuery();if (c.next()) System.out.println(c.getString(1)); Connection, DataSource, PreparedStatement, ResultSet 2) What is the output of…
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1.Suppose you need to display a collection of products for sale, whichmay contain duplicates. Additionally, you have a collection of sales thatyou need to track, sorted by the natural order of the sale ID, and youneed to retrieve the text…
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