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Write a program which reads a file and creates a file with the same contents of all lower case letters. Keep in mind that other characters are not affected.Create your own file to test your program. Your job is to set up the input and output files to have the program read from a file and write to a file. Here is a basic program that will accomplish what is desired:
import java.io.*;class InputOutput{public static void main(String args[])throws Exception{FileReader fr = new FileReader("Exercise03.in");FileWriter fw = new FileWriter("Exercise03.out");
Answer6
int ch;ch = fr.read();while(ch != -1){if((char)ch>='A' && (char)ch<='Z')ch = ch +('a'-'A');fw.write((char)ch);ch = fr.read();}fr.close();fw.close();}}
Write a program called Word Guessing Game. Open the file FourLetterWords.txt and write the contents into an array of Strings (the file has 87 words in it).
Write a method named isAllVowels that returns whether a String consists entirely of vowels (a, e, i, o, or u, case-insensitively). If every character of the String is a vowel, your method should return true. If any character of the String is a non-vo..
Write down the Java program for the furniture company. Ask user to select P for Pine, O for Oak or M for Mahogany.
Let the ADT called SquareMatrix. (The matrix can be represented by 2-D array of ints w/ n rows and n columns.) Write specification for ADT as Java interface. Develop the class which implements interface.
Determine the average amount of time people spend waiting for tables and provide examples from the "real world" of unsorted lists, sorted lists, indexed lists, lists that permit duplicate elements, and lists that do not permit duplicate elements
Write a computer program that will figure out the total of an order when given the amount of the order ($1000) and a sales tax rate of eight percent.
Create a class SafeStack that implements a stack of strings
Write down the program Average.java which just prints strings which it is given at command line, one per line. If nothing is given at command line, print "No arguments".
Use employee data file called employees.txt should comprise at least 5 employee records. Each record stores employee ID number (six digits) last name, first name, middle inital,gender(m or f).
Create and code a program that uses three parallel numeric arrays of size 6. The program searches one of the arrays and then displays the corresponding values from the other two arrays. The program should prompt the user to enter a ProductID. Valid P..
Recognize one high severity vulnerability for each computer (if there is one). Explain vulnerability and describe control(s) to minimize risk from vulnerability.
Programming Exercises 1. Write an application named BadSubscriptCaught in which you declare an array of 10 first names. Write a try block in which you prompt the user for an integer and display the name in the requested position.
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