a. DebugOne1.java
Explanation of Solution
Errors in the given program:
In the given program “DebugOne1.java”, there are two errors, they are,
- The block comment section is not closed in Line 3.
- The keyword “static” is missing in Line 4.
- The highlighted lines are the corrected statements in the given program.
Corrected Program:
// Class definition
public class FixDebugOne1 // Line 1
{ // Line 2
/* This program displays a greeting */ // Line 3
public static void main(String[] args) // Line 4
&...
b. DebugOne2.java
Explanation of Solution
Errors in the given program:
In the given program “DebugOne2.java”, there are two errors, they are,
- The print statements are given wrongly; the correct statement to print is “System.out.println”.
- The double quotes in print statement are missing in Line 8 and Line 10.
Corrected Program:
// Class definition
public class FixDebugOne2 // Line 1
{ // Line 2
/* This program displays some output*/ // Line 3
public static void main(String[] args) // Line 4
{ // Line 5
// Display the statement
System.out...
c. DebugOne3.java
Explanation of Solution
Errors in the given program:
In the given program “DebugOne3.java”, there are two errors, they are,
- The main method is not defined properly, the square brackets “[]” is missing in String function.
- The print statements are given wrongly;
- In Line 6, the letter “l” should be typed instead of “1”.
- In Line 7, the letter “i” should be typed instead of “1”.
- In Line 8, the letter “S” should be in uppercase instead of lowercase “s”.
Corrected Program:
// Class definition
public class FixDebugOne3 // Line 1
{ // Line 2
/* This program displays some output*/ // Line 3
public static void main(String[] args) // Line 4
{ ...
d. DebugOne4.java
Explanation of Solution
Errors in the given program:
In the given program “DebugOne4.java”, there are few errors, they are,
- In the main method in Line 3, the “static” keyword is misspelled.
- In Line 4, the “JOptionpane” class is misspelled, it should be “JOptionPane”.
- In Line 4, the parameter “nul” in “JOptionPane” class is misspelled, it should be “null”.
Corrected Program:
// Import the package
import javax.swing...
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Chapter 1 Solutions
EBK JAVA PROGRAMMING
- How would I create this code in Java? The coding prompt is attached below. SAMPLE RUN BELOW (user entry in bold) Make sure that for the search feature it can search between author, title, or isbn depending on what the user enters. Welcome to the book program! Would you like to create a book object? (yes/no): yEs (yEs, Yes,..., No, NO,nO...etc all acceptable entries) Enter the author, title and the isbn of the book separated by /: Ericka Jones/Java made Easy/458792132 Got it! Now, tell me if it is a bookstore book or a library book (enter BB for bookstore book or LB for library book): BSB (Lb, bB...etc all acceptable entries) Oops! That’s not a valid entry. Please try again: Bookstore Oops! That’s not a valid entry. Please try again: bB Got it! Enter the list price of JAVA MADE EASY by ERICKA JONES: 14.99 Is it on sale? (yes/no): yes (yEs, Yes,..., No, NO,nO...etc all acceptable entries) Deduction percentage: 15% (Enter this as a…arrow_forwardLet's create our first Java file, called Welcome.java, which can be done in any text editor (like Notepad, Notepad++, Visual code, etc.). Open a file and paste the following Java code. public class Main { public static void main(String[] args) { System.out.println("mudau shudufhadzo welcome to BIS2142/ 2542 class"); } } Execute/ run it using a command prompt. Your output should contain a name and welcome to BIS2142/ 2542 class message. Therefore, your display message will look like this "mudau shudufhadzo "welcome to BIS2142/2542 class".arrow_forwardJAVAI need a prompt and GUI that allows the user to log in as a teacher, the password for the teacher login should be "Teacher123" and once the user logs in, it should display to the user a grade book, using this code below. import java.util.Scanner;public class Teacher{ public static void main(String[] args) {System.out.println("Enter the number of grades that are going to be calculated of that subject: "); //input Scanner scanner = new Scanner(System.in);int cla = scanner.nextInt();double[] arr = new double[cla]; //Declaring array of elementsdouble total = 0; for(int i=0; i<arr.length; i++){System.out.print("Enter in grade #" +(i+1)+" : "); //input of the gradearr[i] = scanner.nextDouble();}scanner.close();for(int i=0; i<arr.length; i++){ total = total + arr[i];}double average = total / arr.length; //finding the total averageSystem.out.format("The average is: %.3f", average); //print from input}}arrow_forward
- Java Programming: Below is the lexer, shank and token files along with the shank.txt file. The shank file is the main method file. The lexer must break up the input text stream into lexemes and return a token object for each one in the shank.txt file. Make sure to fix the errors in the lexer.java file and show the complete code for lexer.java.There must be no error in the code at all. Run the whole code and show the output which the shank.txt must be printed out in the terminal. Attached is the rubric. Lexer.java package mypack; import java.util.HashMap;import java.util.List;import mypack.Token.TokenType; public class Lexer { private static final int INTEGER_STATE = 1;private static final int DECIMAL_STATE = 2;private static final int IDENTIFIER_STATE = 3;private static final int SYMBOL_STATE = 4;private static final int ERROR_STATE = 5;private static final int STRING_STATE = 6;private static final int CHAR_STATE = 7;private static final int COMMENT_STATE = 8; private static final…arrow_forwardJavaProgramming 3.a. Create a class named Circle with fields named radius, area and diameter. Include methods names setRadius(), getRadius(), computeDiameter() which computes a circles’s diameter and computeArea which computes a circle’s area. The diameter of a circle is twice its radius and the area is 3.14 multiplied by the square of the radius. b. Create a class named TestCircle whose main() declares three Circle objects. Using the setRadius() method, assign one circle a small radius value. Assign another circle a larger radius value and assign the third circle a radius of 1. Call computeDiameter() and computeArea() for each circle and display the results.arrow_forwardWrite, compile, and test a class that displays at least four lines of your favorite song. Save the class as FavoriteSong.java. Every praise is to our God.Every word of worship with one accordEvery praise every praise is to our God.Sing hallelujah to our GodGlory hallelujah is due our GodEvery praise every praise is to our God.arrow_forward
- Write an application that computes and displays the day on which you become(or became) 10,000 days old. For example, if you we're born on January 1st, 2000, the output would be I will be 10000 days old on 2027-05-19. Grading Write your Java code in the area on the right. Use the Run button to compile and run the code. Clicking the Run Checks button will run pre-configured tests against your code to calculate a grade. Once you are happy with your results, click the Submit button to record your score. import java.time.LocalDate; import java.time.Month; import java.util.Scanner; public class TenThousandDaysOld { public static void main(String[] args) { Scanner input = new Scanner(System.in); //validate input entered try { System.out.println("Enter year of birth: "); //validate inputs for right values int year = input.nextInt(); if(year <= 0) { System.out.println("Invalid Year Entered"); System.exit(1); } System.out.println("Enter month of birth: "); int month = input.nextInt();…arrow_forwardCreate a java class called Student to represent a Student exam grades. The class has four instance variables: A String variable for the name, and three double variables to store three exams grades for the student. Write a mutator method that takes four parameters—A String and three doubles. Use these parameters to initialize the instance variables declared earlier. Write a getAverage method that calculates and returns the average of the three exam grades. Write a separate program that creates 2 Student objects to hold the following data. First Name Exam#1 Exam#2 Exam#3 Ahmed 83.0 95.5 90.0 Kareema 75.25 83.0 89.0 Output the name and average grade for each of the above students.arrow_forward
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTEBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT