b. What happens if you run the above code in a main method without try-and-cat blocks? Try it out and add a screenshot. c. Give the code that reads the first 10 lines of the text file using the method nextLine().

b. What happens if you run the above code in a main method without try-and-cat blocks? Try it out and add a screenshot. c. Give the code that reads the first 10 lines of the text file using the method nextLine().

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

See similar textbooks

Related questions

Q: What is used to print the trace of a program's method calls? try-catch getMessage()…

A: try-catch: It is just the block which is used to enclose the code that might throw an exception. And…

Q: You can just provide code as you don't have required utility class, Please provide explanation and…

A: import java.util.*;import java.lang.*;import java.io.*; class Codechef{ public static void…

Q: I would like you to create an image file programmatically. Your image file should be called…

A: This lesson started with an explanation for using the javax.imageio package, to load images from an…

Q: There is a children’s game called FizzBuzz where players take turns counting but replace the numbers…

A: public class FizzBuzz{ public static void main(String[] args) { int i; for(i = 1; i <= 100;…

Q: how to get response parameter O response.gettingParameter O $ GET['parameter'] AND…

A: $_GET['parameter'] AND $_POST['parameter'] it is used to get and post post parameter…

Q: As always, put your Assignment number, name, and class section in a block comment at the beginning…

A: Here I have created the class named VotingMachine. Inside the class, I have created static variables…

Q: In Java. Ask the user for a starting point and ending point. Sort the user list using the method in…

A: Find the modified code in step 2

Q: A).In order to call another method in the same class, it must be declared before (above) the method…

A: As per our company guidelines, we are supposed to answer three subparts of a post and kindly…

Q: LD a METHOD called MyMethod(). Show how you would advertise that this method may throw an…

A: Note - Since you have not provided the language name to write the code so I am using C# language to…

Q: Write a program that creates a Date object, sets its elapsed time to 10000, 100000, 1000000,…

A: Code: public class Date { public static void main(String[] args) { long i = 0;…

Q: This method returns a string with a number of vertical bars that correspond to the bars parameter.…

A: private static String getVerticalBars(int maxRows, int maxCols, int bars, char color1, char color2,…

Q: When you want to run an activity code, when the activity is partially visible and going backgrou we…

A: Answer : onStart() method. is the correct answer.

Q: Create a method that returns a string where for every char in the original, there are two chars.…

A: java program to return string where every char in original string is doubled.

Q: Write a method named getMax that will take an array of doubles as a parameter, and it will return…

A: Answer

Q: Numbers.java is provided below and now it needs tocomplete this class. A method called input() will…

A: Step 1 : STARTStep 2 : declare all variablesStep 3 : input how many numbers (size)Step 4 : input the…

Q: fizzbuzzy Dat

A: #include <stdio.h> void fizzbuzzy(int max, int step, int divisorOne, int divisorTwo) { for…

Q: Add a new method to ArrayTools with filter. Make this method accept a String array. Change all the…

A: Array and String in Java - Array is a collection/group of similar type elements. For example, An…

Q: 1. Create a project in NetBeans and name the project Hw06. 2. The class will contain the following…

A: Algorithm: Create a new java project NetBeans and name it Hw06. Create a class called Hw06. In the…

Q: Is the character repeating problem Within the Utils class that is provided to you in "Requested…

Q: Write a line that calls the Copier object's method called makingCopies. The makingCopies method has…

A: Solution: Given, Write a line that calls the Copier object's method called makingCopies. The…

Q: In a file called RemoveVowels.java, write a program that: Asks the user to enter a word of text.…

A: A java program to print the word with all vowels removed is given below;Program:File name:…

Q: By using the following line, a new instance of the Transcript class will be created.

A: In programming, creating a new instance of a class is a common task. In this context, this article…

Q: In java, Write a method void popMult(int k) for the ArrayBoundedStack class which will pop k items…

A: ANSWER:-

Concept explainers

Math class and its different methods

Java math class consists of arithmetic math methods that performs basic numeric operations such as finding the maximum or minimum of two values, rounding values, logarithmic functions, square root, and trigonometric functions, etc. The Math library functions can be accessed using the header Java.lang.Math. These math methods under Java math class are for our convenience.

Question

4. Assume you have the following code, which creates a Scanner object to read input from a text
file:
Scanner sc file = new Scanner(new File("input.txt"));
a. What is the name of the text file in the file system?
"input.txt"
Module 12 Workshop Activity 2B
Page 5 of 6
b. What happens if you run the above code in a main method without try-and-catch
blocks? Try it out and add a screenshot.
C. Give the code that reads the first 10 lines of the text file using the method
nextLine ().
d. What happens if you create a second Scanner object sc2 from the same text file and
use sc2.nextLine () ? Does it start where the first one left off, or does it start at the
beginning of the file again? Try it out and add a screenshot.
e. If there are 15 lines in the text file input.txt. What happens if you write code that tries to
read 16 lines from the text file? Try it out and add a screenshot.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: 1 b solution

Step 2: 1c solution

Step 3: 1d solution

Step 4: Input.txt

Solution

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Write a class called listOddNumbers that prints the below picture. (Note: there is a single space between each number). Please show your code and copy and paste your console with the finished result.
Suppose you are working with a class for manipulating images. This class has a method called resize. The method takes as input a double that is greater than or equal to 0, and the value is the proportion of the current size. So an input of 0.5 will half the size, 1.0 will keep it the same, and 2.0 will double the size. The method throws an IllegalArgumentException. Which of the following are true? Group of answer choices Which one the answer: Assume you have an image called Image1.png in the correct location. You also have the code:MyImage im = new MyImage(“Image1.png”);resize(1000.0);This code will result in an IllegalArgumentExceptionbeing thrown. Assume you have an image called Image1.png in the correct location. You also have the code:MyImage im = new MyImage(“Image1.png”);resize(0);This code will result in an IllegalArgumentExceptionbeing thrown. All of the other options are true. Assume you have an image called Image1.png in the correct location. You also have…
3. Create a program for Smalltown Regional Airport Flights that accepts either an integer flight number or string airport code from the options in Figure 8-33. Pass the user’s entry to one of two overloaded GetFlightInfo() methods, and then display a returned string with all the flight details. The method version that accepts an integer looks up the airport code, name, and time of flight; the version that accepts a string description looks up the flight number, airport name, and time. The methods return an appropriate message if the flight is not found. Farrell, Joyce. Microsoft Visual C#: An Introduction to Object-Oriented Programming (MindTap Course List) (p. 347). Cengage Learning. Kindle Edition.
Please don;t change anything. put your code line 5. Java Write a static method named toCelsius that takes a single parameter fahrenheit as a double, converts Fahrenheit to Celsius, and returns the value as a double. The formula is 5 / 9 * (F - 32) = C
in Java, please. Please add comments. Thank you
You need to execute a call to a void method data.compute(), which may throw a ComputeException. Write a suitable fragment of code which makes a call to this method and: a. if no ComputeException exception is thrown, prints "Computed" on standard output, OR b. if a ComputeException is thrown, prints "Failed to compute". No other output should be printer.
Write a complete main method that does the following: 1. Takes command line arguments (strings) and determines which string is the longest. 2. If there is not at least one command line argument, throw an IllegalArgumentException with an appropriate message.
In python: The program should ask users for their email address and password for connecting to the mail server. You can create a new gmail account and use it for this assignment. Once the connection is complete, the program should ask for the receiver''s email address, and lastly send the email. Write "Hello" for the subject and "Email from Python" as body. Use the getpass library to hide password from shell. Instantiate an object and call it. Submit the .py file as well as screenshots showing the code runs and email received.
Write a method that takes a RegularPolygon as a parameter, sets its number of sides to a random integer between 10 and 20 inclusive, and sets its side length to a random decimal number greater than or equal to 5 and less than 12. Use Math.random() to generate random numbers. This method must be called randomize() and it must take an RegularPolygon parameter. You can call your method in the program's main method so you can test whether it works, but you must remove or comment out the main method before checking your code for a score. You will also need to make sure you do not remove the import statement "import testing.Math" as this is required to check your code for a score.
) You look at the help for the string methods.title() and .replace() and you get back the ollowing: >>> help(str.title) Help on method_descriptor: title(self. /) Return a version of the string where each word is titlecased. More specifically, words start with uppercased characters and all remaining cased characters have lower case. >>> help(str.replace) Help on method_descriptor: replace(self, old, new, count=-1. /) Return a copy with all occurrences of substring old replaced by new. count Maximum number of occurrences to replace. -1 (the default value) means replace all occurrences. If the optional argument count is given, only the first count occurrences are replaced. Based on this help, what is going to be the content of the variable done after the following statements are executed: >>> done = ('Are we down now?') >>> done = done. title().replace(' '. '')
Submit the code (copy&paste) with a screen shot of the same sample run as below. 1. Write a class ArrayMethods, where the main method asks the user to enter the num ber of inputs and stores them in an array called myList. Create a method printArray that prints the array myList. Create another method copyArray that copies the array using System.arraycopy, and multiplies each element in the copied array by 2, then finally returns the array to the main method. Invoke the printarray again to print the array returned by copyArray. In summary, see below. main method does: asks user for inputs and stores in array. Invoke printArray. Invoke copyArray. Invoke printArray again. printArray: void method, parameters passed is an array, prints an array copyArray: array-returningmethod, parameters passedis an array, copies array, multiplies 2 to each element in the copied array, returnsthe copied array
What is the name of the above method? What type of method? Write call statement that invokes / tests the function? Image attached.