Answered: Using Regex.exec() with parentheses…

Engineering

Computer Science

Using Regex.exec() with parentheses regex to extract matches of a string javascript?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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I need help with a Java program described below: import java.util.Scanner;import java.io.FileInputStream;import java.io.IOException; public class LabProgram { public static void main(String[] args) throws IOException { Scanner scnr = new Scanner(System.in); /* Type your code here. */ }}
Write a Java method named getSiteName() that receives a String representing a URLand returns the name of the site extracted from the URL. Test your function using mainmethod as follows:Enter site URL: http://www.google.comSite name is: Google
Relating to java: Im just wondering based on user input how would i check if user input in valid by comparing to csv file and further getting the info from that row thats been specified. public int carSelection (int carsAvailable) { System.out.println ("To make a booking: "); System.out.println ("\tSelect the car number from the car list: "); selection = in.nextInt (); if(selection carsAvailable) { System.out.println ("Invalid selection! Please choose a number not greater than " + carsAvailable + " and not less than 0"); return carsAvailable; //Getter / Setter methods Heres my current code. I know that the check is a bit wrong just need some guidance. Heres the csSv : 1 Mazda CX- 7 Automatic Premium 150 2 VW Golf 5 Automatic Standard 59 3 Toyota Co 5 Automatic Premium 55 7 Automatic Premium 4 VW Tiguar 5 Ford Falcc 110 5 Manual Standard 60 6 Mercedes 5 Manual Premium 450
My java code keeps giving me back StringIndexOutOfBounds for the following code. Need help dealing with this Movie.java: import java.io.File;import java.io.FileNotFoundException;import java.util.ArrayList;import java.util.Scanner;public class Movie{public String name;public int year;public String genre;public static ArrayList<Movie> loadDatabase() throws FileNotFoundException {ArrayList<Movie> result=new ArrayList<>();File f=new File("db.txt");Scanner inputFile=new Scanner(f);while(inputFile.hasNext()){String name= inputFile.nextLine();int year=inputFile.nextInt();inputFile.nextLine();String genre= inputFile.nextLine();Movie m=new Movie(name, year, genre);//System.out.println(m);result.add(m);}return result;}public Movie(String name, int year, String genre){this.name=name;this.year=year;this.genre=genre;}public boolean equals(int year, String genre){return this.year==year&&this.genre.equals(genre);}public String toString(){return name+" ("+genre+") "+year;}}…
Assign to maxSum the max of (numA, numB) PLUS the max of (numY, numZ). Use just one statement. Hint: Call findMax() twice in an expression. - I dont understand what I am doing wrong here, I keep getting an error code saying that non-static findMax(numA, numB) cannot be referenced from a static context. Anything helps! import java.util.Scanner; public class SumOfMax {public double findMax(double num1, double num2) {double maxVal; // Note: if-else statements need not be understood to// complete this activityif (num1 > num2) { // if num1 is greater than num2,maxVal = num1; // then num1 is the maxVal.}else { // Otherwise,maxVal = num2; // num2 is the maxVal.}return maxVal;} public static void main(String [] args) {double numA = 5.0;double numB = 10.0;double numY = 3.0;double numZ = 7.0;double maxSum = 0.0; // Use object maxFinder to call the methodSumOfMax maxFinder = new SumOfMax(); maxSum= (findMax(numA,numB)+findMax(numY,numZ)); System.out.print("maxSum is: " + maxSum);}}
Write the output for the following Java code Segment. try { URL u = new URL("https://bb.cas.edu.om/webapps/assessment/do/authoring/modifyShortQuestion?course_id=_143_1"); System.out.println("1. The Protocol is " + u.getProtocol()); System.out.println("2. The user info is " + u.getUserInfo()); System.out.println("3. The host is " + u.getHost()); System.out.println("4. The Port Address is " + u.getPort()); System.out.println("5. The File is " + u.getFile()); System.out.println("6. The Query string is " + u.getQuery()); System.out.println("7. The Path is " + u.getPath()); System.out.println("8. The Authority is " + u. getAuthority()); } catch (MalformedURLException ex) { System.err.println(" I do not understand the URL"); }
Explain what this code is doing: $.ajax({ }); type: "get", url: "team.xml", beforeSend: function() {$("#team").html("Loading...");), timeout: 10000, error: function(xhr, status, error) { alert("Error: "+xhr.status. }, dataType: "xm1", success: function(data) { $("#team").html(""); } error); $(data).find("management").children().each(function() { var xmlDoc- $(this); $("#team").append("" + xmlDoc.find("name").text() + "" + xmlDoc.find("title").text() + "" + xmlDoc.find("bio").text() + ""); Than shows the user the message that the data is loading. Select one: a. Tries to read data from XML file team.xml from the server. Then shows the user the message that the data is loading. If data is successfully received it parses it and loads it in the HTML element with id team. If error happens in retrieving the data from the server it alerts user about the error. b. Waits for the user to click on a button which says "Loading...". Then tries to read data from XML file team.xml from the server. If…
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Consider you are given a very specialized string with a unique format as: Quiz_(no) # (q.no) : (question statement) $ (option1) , (option 2) , … * (right option number) … \n String starts with Quiz_ (quiz number like 1, 2, … ), then hash #, then question number (like qno_1, qno_2 …), then colon :, then question statement, then dollar $, then options (like option1, option 2 …), then asterisk *, and then right option for the given question statement. If more questions are there for the same quiz, then pattern after hash # is repeated (means every question is separated by # symbole). Each quiz ends with new line (\n), and then new quiz starts with same pattern as before. A sample pattern is given below. You are required to create a program in JAVA, in such a way that if your program receives any string with this pattern (or format) it should provide output as given below. (Hint: Use split, trim method to do the job) String starts with Quiz_ (quiz number like 1, 2, … ), then hash #, then…
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The String class is provided in the Java library. Provide your own Java implementation for the following methods (name the new class MyString): public Mystring(char[] chars); public char charat(int index); public int length(; public Mystring substring(int begin, int end); Mystring toLowercaseCO; public boolean equals (Mystring s); public static Mystring valueof(int i); public int compare(string s); public Mystring substring(int begin); public Mystring toupperCase(); Write a Java test program that tests all methods in the class.