Chapter 7, Problem 10RQ

In java language Before we write a class which is used to describe objects, let’s practice manipulating an object by calling its methods. Complete the class LeetMaker class using String methods. Remember that all the String methods are accessors. They do not change the original String. If you want to apply multiple methods to a String, you will need to save the return value in a variable. Complete the class by doing the following: Print the word in lowercase Replace "e" with "3" (Use the unmodified variable word) Print the changed word In the changed word, replace: "t" with "7" Print the changed word In this newest changed word, replace: "L" with "1" (uppercase L with the number 1). Then, print the final changed word (with all the replacements) Print the length of the word The code to print the original word is already included for you. Do not change that statement.  You will need to use the replace() method multiple times. Then print the final String. Remember that replace is an…

/*  This is the code for the Word Jumble game from Chapter 3.   Improve the Word Jumble game by adding a scoring system. Make the point valuefor a word based on its length. Deduct points if   the player asks for a hint. */ // Word Jumble// The classic word jumble game where the player can ask for a hint #include <iostream>#include <string>#include <cstdlib>#include <ctime> using namespace std; int main(){    enum fields {WORD, HINT, NUM_FIELDS};    const int NUM_WORDS = 5;    const string WORDS[NUM_WORDS][NUM_FIELDS] =     {        {"wall", "Do you feel you're banging your head against something?"},        {"glasses", "These might help you see the answer."},        {"labored", "Going slowly, is it?"},        {"persistent", "Keep at it."},        {"jumble", "It's what the game is all about."}    };     srand(static_cast<unsigned int>(time(0)));    int choice = (rand() % NUM_WORDS);    string theWord = WORDS[choice][WORD]; //word to guess    string theHint =…

Write a method specification for the method below.public String getDefinitionFromDictionary(String word)

Write a method that accepts a String object as an argument and displays its contents backward.For instance, if the string argument is “gravity” the method should display -“ytivarg”.Demonstrate the method in a program that asks the user to input a string and then passes itto the method.

Briefly describe each of the following string object methods: TrimStart

Write a program in the StringManipulator class that creates a String variable that references a String object holding the name of your favorite city. The program should display the following: • The number of characters in the city name• The name of the city in all uppercase letters • The name of the city in all lowercase letters • The first character in the name of the city

3- What is the output of the following program? Why?public class Student {public String getDepartment() {return "general";}public String getStudInfo() {return this.getDepartment();}}public class CSStudent extends Student {public String getDepartment() {return "CS";}}public class Main{public static void main(String[]args){Student s1 = new CSStudent();s1.getStudInfo();}}

Please explain Common String Mistake in the code below/question in Bold:   public class StringMistakeDemo{public static void main(String[] args) {String a = "Roux";String b = "Roux";String c = new String("Roux"); /** Number 1* Consider the output from the this block of code. * Which line causes the "false"?* Why are the last two lines different?*/System.out.println();System.out.println("Roux" == "Roux"); //comparing two stringsSystem.out.println(a == b); //comparing two string variablesSystem.out.println(a == c); //comparing two other string variablesSystem.out.println(a.equals(c));//using the string class method "equals"/** Number 2* "identityHashCode" provides a numeric signature that includes the * memory location for the variable. * What does the following output tell you about how Java stores…

Assume below basic skeleton of Student and GradeBook class: public class GradeBook { private String courseName; private Student[] students; // ... other methods .... } public class Student{ private int id; private String name; int marks[]; // marks in different tests } Encapsulate fields and defined needed constructors. Then, make a GradeBook object and fully initialize it based on user input. Get number of students from user input. As number of tests each student given may be different, so your program shall take number of tests and marks in each test, form user input too. You can also generate and use random number to quickly initialize whole data, instead of getting from user, but choose decent ranges e.g. maximum marks 100, maximum students 50 and maximum number of test each student may give shall be less or equal to 10. After fully initializing the GradeBook object, print following information: Which student given maximum number of test, print student id Who got maximum…