Given the following Java code:​String str1 = “Java is useful!”;​String str2= “Java is cool”; write the result of to each of the following questions:​write a Java expression that compares if str1 is equal to str2​​write a Java expression that displays string str1

Number to Words: Write a Java program to convert a given number to its equivalent words representation. For example, 123 -> "one hundred twenty-three".

Java Programming: Question 12 Not sure how to do this question. Help of any input and output would be appreciated.

Hi, I need assistance please with my java code to implement the below problem. The Java program uses Genetic Algorithms to recognize a string. Below is the code. Im missing some functionalities that enables the program to work successfully. Thank you The program is intended to work as follows: The user can input the string to guess. The user can enter the number or organisms in the population. The user can enter the number of generations to create. The user can enter the mutation probability. The user can observe the progress of the GA, for example print the best answer in every 10th generation. After the prescribed number of generations, the program should print best/final answer. The program should “guesses” the string  “We the people of the United States in order to perform a perfect union” and print result    import java.util.Scanner;public class GATest {    public static void main(String[] arg) {        boolean repeat = true;        while(repeat) {            Scanner…

Java Programming Question 12 error: I have this else error in my code and not sure how to fix it. Help would be appreciated!

A String object in Java is considered to be mutable, i.e., the characters it contains can be changed by its methods.  True  False

JAVA Write a substring expression to extract “Exam” from the following String.  String str= “Final Exam”;

Understanding ifStatements Summary In this lab, you complete a prewritten Java program for a carpenter who creates personalized house signs. The program is supposed to compute the price of any sign a customer orders, based on the following facts: The charge for all signs is a minimum of $35.00. The first five letters or numbers are included in the minimum charge; there is a $4 charge for each additional character. If the sign is made of oak, add $20.00. No charge is added for pine. Black or white characters are included in the minimum charge; there is an additional $15 charge for gold-leaf lettering. Instructions 1. Ensure the file named HouseSign.java is open. 2. You need to declare variables for the following, and initialize them where specified: A variable for the cost of the sign initialized to 0.00 (charge). A variable for the number of characters initialized to 8 (numChars). A variable for the color of the characters initialized to "gold" (color). A variable for the…

what are the difference betweenpassing an argument by pass by value and pass by refference?

Please answer question. This is pertaining to Java programming language 2-17