Respond to the following in a minimum of 175 words:   Discuss the purpose of comments and whitespaces in Java. Discuss the necessary Java statements and logic to create a Java program that correctly prompts users to enter a username and password. The username is not case-sensitive, but the password is. The user needs to correctly type both username and password for the program to print out “Hello World.” Explain clearly the rationale behind the logic you used. How do the rules set by Java decrease the likelihood of programming errors?

Q: In Java, all primitives (including String) are passed by value while all object types are passed by…

A: TRUE

Q: In this task, you need to evaluate the following four expressions and demonstrate at least 5 steps…

A: a%(b-c)/d+(e*f) 2%(1-5)/21+(50 * 2) 2%(-4)/21+100 0/21+100 100   100 is the final answer

Q: What will the following Java expression evaluate to if x=3, y=5, and z=10. ++z+y-y +z + X++ a. 22 b.…

A: For the given values of variables: x = 3 y = 5 z =10 The given expression "++z  +  y  -  y  +  z…

Q: l'op-down programming is illustrated by which of the following? (A) Writing a program from top to…

A: Top down programming, commonly referred to as "stepwise refinement," is a method of software…

Q: Question 1: Write a complete Java program - with your own code writing - that contains: 1. A main…

A: Solution: Java code: import java.util.Scanner; public class Main {     /**      * 5. A constant…

Q: Correct the following wrong statements. 1. do … while repetition statement gives full control on the…

A:

Q: Consider the following Java code which uses the JDBC API. Assume that the userid, password, machine…

A: Hey there, I am writing the required solution based on the above given question. Please do find the…

Q: Based on the exercise we did in class, write a complete Java program that allows a user to play…

A: Given:

Q: Complete the following program in java to implement the user interface of the preceding exercise.…

A: A Java program is as follows, File name: “UnitConverter.java” import java.util.Scanner; import…

Q: Write a Java code and initialize the following variables: title, last name, first name, student…

A: Java code to Initialize the following variables: title, last name, first name, student number, age,…

Q: Make a Java electronic voting program.

A: import java.awt.*; import java.applet.*; import java.awt.event.*; public class Voting_System extends…

Q: Question 3 Except where otherwise stated, any code you write in this question should be in Java. (a)…

A: Here is the detailed explanation of the solution

Q: 1. Write the different class names with class keyword 2. Write the different methods using public…

A: // consider class name booksclass Books { public int bookId; private int bookLocation; // getter for…

Q: Fixing errors in Kite

A: After fixing all errors, I have provided  JAVA CODE  along  with CODE  SCREENSHOT  and  OUTPUT…

Q: 2. Show that a static method can be called using the class name and a dot operator

A: class Tester{  public static void helloStatic1() {  System.out.println("Hi this is a helloStatic1…

Q: Explain every word in the header of the main method in a Java program.

A: Given: Explain every word in the header of the main method in a Java program.

Q: l'op-down programming is illustrated by which of the following? (A) Writing a program from top to…

A:

Q: Develop a Java program that performs the following: Two Class Model a bank account with these…

A: import java.util.*;import java.lang.*;import java.io.*; class account{    String name;    String…

Q: Exercise 1: Create a JAVA program that prompts the user to enter a numerical test mark and displays…

A: Here I have taken input from the user and then used the if-else block to first validate it. Then, I…

Q: 2. Develop a JAVA program which performs all basic arithmetic operations.

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 8. Develop an application program in Java that can perform the following two operation. You have to…

A: As given, we need to write a Java program that perform the following operations - a) To check a…

Q: How do exceptions and their accompanying try/catch statements occur in the real world? Let's take…

A: Example 1: when any one try to divide any number by 0 then  exception occurs. import java.io.*;…

Q: Top-down programming is illustrated by which of the following? (A) Writing a program from top to…

A: Option (E) is the correct answer Explanation: Top down programming is a software development method…

Q: Questions: 1. Write down syntax for if, else…if & nested if...else statements in java. 2. Explain…

A: Note :  As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly…

Q: In Java Please. Write a unit conversion program that asks the users from which unit they want to…

A: Here is the java program of the above problem. See below steps.

Q: 4) For the following problem, write a program (in as close to Java code -but doesn’t need to be…

A: Pseudocode: function play: ans= max element in array // if array contanis atleast one equal ajacent…

Q: what is meant by this statement "programmer time is an efficiency consideration" give an example of…

A: Find an explanation below.

Q: Apply the knowledge learnt in this module and create a Java program using NetBeans that takes in two…

A: In the given program, the method compute_division is used to calculate and print the division of the…

Q: Display the message All for one and one for all! with the System.out.printIn() method and advance…

A: Java: In Java, System.out.println() could be a statement that prints the argument passed to that.…

Q: Answer the given question with a proper explanation and step-by-step solution. Qns:(JAVA) Can…

A: StartImport ScannerDeclare firstName, middleName, lastName as stringsCreate a Scanner object for…

Q: str is a String object. Write Java statements that prints the characters of str with index…

A: The Java code snippet that prints the characters of a String object str with index increments of 3…

Q: l'op-down programming is illustrated by which of the following? (A) Writing a program from top to…

A: Option (E) is the right answer. (E) Writing the program in terms of the operations to be performed…

Q: 1. What is Accessor? a. Explain using a proper java programming example and its output. PS: Please…

A: In  step 2,  I have  provided  ANSWER  with  EXAMPLE  JAVA   PROGRAM------------------

Q: Create java program with a declaration of int x = {1,2,3,4,5,6,7,8,9,10} that swaps the values 4 and…

A: Code: import java.io.*;class Swap{public static void main(String args[]){ int x[] =…

Q: GRADED ACTIVITY #6; METHODS Instruction: Create a flowchart and a java program of the problem stated…

A: GIVEN THAT:-- Step 1 The code for atm is as below:

Q: A Teacher needs to check his students' progress by checking their achieved grades in some exam. The…

A: Answer : Answer: The description of the program is as follows: The program contains 5 methods, 3 as…