Write a java program that has the following 3 methods in addition to the main program. The main program should be interactive using a "do while loop". All input/out must be done in the main. 1. countLetter: Write a method, countLetter(...), that takes as parameter a sentence and letter and count how many times did the letter appear in the sentence. In the main the sentence are read from a file which contains many sentences and letters. Input file This is an example i The output of your program should be one of the following sentence 0 It is a palindrome or it is not a palindrome

Write a java program that has the following 3 methods in addition to the main program. The main program should be interactive using a "do while loop". All input/out must be done in the main. 1. countLetter: Write a method, countLetter(...), that takes as parameter a sentence and letter and count how many times did the letter appear in the sentence. In the main the sentence are read from a file which contains many sentences and letters. Input file This is an example i The output of your program should be one of the following sentence 0 It is a palindrome or it is not a palindrome

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

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This is in Java please: A comma separated value (.csv) file has been included to be used for this program. Each line contains two values, a name and a number separated by a comma (except the first line, which contains the titles for the value types). The name is that of a writer and the number refers to the number of works the writer has written. Ex. Jane Austen,6. Each line is an entry and each entry number can be updated by identifying the associated name. Once complete, the following program opens data file allWorks.csv and asks if the user wants to update entries or add new entries. All entries are stored in an array while being read in and updated. The program then writes the array to the file, overwriting the original contents. The following TODO sections must be completed. Open allWorks.csv for reading/input. Locate an entry to be updated by name (use the Java String indexOf() method) Add a new entry if the name isn't found in the file (give the entry a new number) Open file…
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The file Parameters.java contains a program to test the variable-length method average.1. Read the code. Fill in the code to compute mean1 and mean2. Notice that you are calling the same method, but with a different number of parameters. 2. Add a call to find the average of a single integer, say 8. Print the result of the call. Is the result what you expected?3. Add a call with an empty parameter list and print the result. Is the result what you expected?4. Add a method called minimum to return the minimum value of the parameter list. Invoke this method in the main() and test it with different input numbers. //*******************************************************// Parameters.java//// Illustrates the concept of a variable parameter list.//*******************************************************import java.util.Scanner;public class Parameters{ //----------------------------------------------- // Calls the average and minimum methods with // different numbers of parameters.…
In Java Suppose you are given a text file that contains the names of people. Every name in the file consistsof a first name and a last name. Unfortunately, the programmer that created the file of names hada strange sense of humor and did not guarantee that each name was on a single line of the file.Write a program that reads this file of names and writes them to a new text file, one name per line.For example, if the input file (Names.txt) contains:Bob Jones FredCharles EdMarstonJeffWilliamsThe output file (RecoveredName.txt) should be:Bob JonesFred CharlesEd MarstonJeff WilliamsSample Output:Enter the name of the input file:Names.txtEnter the name of the output file: RecoveredName.txtFile processing completed.
Basic Java Help Each year, the Social Security Administration provides a list of baby names for boy and girls by state. You will write a program to read a file containing a list of baby names and display the top names. To start, implement the following class: baby names util = printTopNames(File, int): void printTopNames Will be a static method. It will accept two parameters, one is a File containing the list of names. The other is an integer that indicates how many names to display (ie, top 10 names, or top 50 names, etc). The integer argument could be any valid integer. You do not have to worry about an integer value large than 5 for the boy/girl names. This method should open the file and parse the file and print the names as shown below: Your program will use the Scanner class to read the data from the file (see your text for examples). You will also need to use a delimiter with the scanner so that the scanner will break the line apart based on the commas. For this file, set…
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Write a complete Java program: You have text file called "file.txt" read the contents of the text file and display them on the screen.
1. Write a program that takes three numbers (a,b,c) from the user as input and finds the median of the three. The program has a method called median that takes 3 numbers as the parameter and returns the median. Use if-then-else statements to find the median. You can assume the three numbers are not the same. Sample Example: Enter 3 numbers 10 13 The median is 10 public class Median{ public static void main(String[] args){ Scanner input = new int a = int b = int c =
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Question P Print person1's kids, call the incNumKids() method, and print again, outputting text as below. End each line with a newline. Sample output for below program with input 3: Kids: 3 New baby, kids now: 4 // ===== Code from file PersonInfo.java =====public class PersonInfo {private int numKids; public void setNumKids(int setPersonsKids) {numKids = setPersonsKids;} public void incNumKids() {numKids = numKids + 1;} public int getNumKids() {return numKids;}}// ===== end ===== // ===== Code from file CallPersonInfo.java =====import java.util.Scanner; public class CallPersonInfo {public static void main(String [] args) {Scanner scnr = new Scanner(System.in);PersonInfo person1 = new PersonInfo();int personsKid; personsKid = scnr.nextInt(); person1.setNumKids(personsKid); /* Your solution goes here */ }}// ===== end ===== Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this…