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1. Write a program in which the main method calls a method with the heading public static char changeCase(char ch) that if ch is a lowercase letter, the method will return the corresponding uppercase letter, and if ch is a uppercase letter, the method will return the corresponding lowercase letter. If ch is not a letter, the method returns the same value of ch. Thus, for instance, changeCase('a') returns A, changeCase('B') returns b, and changeCase('3') returns 3. Note that the uppercase letters have a unicode (ascii code) value that is 32 lower than the corresponding lowercase ones.
Your main method should contain three calls to changeCase() for each case mentioned above.
2. Write a method public static char toUpperCase(char ch) that if ch is a lowercase letter, the method will return the corresponding uppercase letter, and if ch is any other character, it will return that character. Read a string consisting of "My country tis of thee, Sweet land of liberty, Of thee I sing" and using toUpperCase() in a loop, convert the entire string to uppercase letters, where the string is assigned to the variable s.
Write a java code that calculates the product of the following sequence of numbers using for/loop and do/while/loop
1.int FileIOHelper.getNumberofStudents(String fileName): takes a String parameter which is the name of an input file in the format described above, and returns the number of students in the file
modify your server to make it multithreaded. your server should allow more than one client to connect and request
Implement a program that allows two players to play tic-tac-toe. Draw the game grid and an indication of whose turn it is (X or O). Upon the next click, check that the mouse click falls into an empty location,
Calculate dependent deductions at 2.0% of the employee's salary for each dependent.
What are the limits for each one of these indexes and is it possible to model a 2-dimensional array with a single-dimensional array?
Create a panel with BorderLayout. Add a button labeled "OK" to the south side of the panel - given the program, show the values of the array
To practice defining classes using separate compilation using classes, vectors, and pointers experience using dynamic memory.
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Create a Deque class based on the discussion of deques (double-ended queues) in this chapter. It should include insertLeft(), insertRight(), removeLeft(), removeRight(), isEmpty(), and isFull() methods.
Write a program that creates a file called "grades.txt" with 1000 lines. Each line in the "grades.txt" file will consist of a student's first name, last name, graduating year(2013,2014,2015), and grade. the student's first name and last name for t..
Being a super Packer fan's wife, this assignment involves the use of the Green Bay Packer logo. Any die-hard Minnesota fans are welcome to use the Viking's logo instead.
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