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Define the MyRectangle2D class that contains:
Implement the class and write a test program that creates a Rectangle2D object r1 (new Rectangle2D (2, 2, 5.5, 4.9)), displays its area and perimeter, and displays the results of r1.contains (3, 3), r1.contains (new Rectangle2D (4, 5, 10.5, 3.2)), and r1.overlaps (new Rectangle2D (3, 5, 2.3, 5.4)).
Please note, your implementation will be tested with other test cases too.
Complete the twins() method, which takes an integer argument n and prints all the sets of twin primes that are less than n, one pair per line
Hint.First write a static method that reverses a three digit number producing a result as described above, and test it directly from the main method. Your static method should have the following signature.
Edit Java program for input of numbers only. If the user inputs a letter the program must abort with a messegae like "Program aborted by user". Please explain the code.
Computer Science, Operating Systems - Year 1Description:java validationProblem: Using NetBeans 7.2
Write a method called addUnevenArrays that takes two arrays, a and b, and returns a new array, c, with alength that is the maximum of the lengths of a and b. Each c[i] is the sum of the corresponding elementsof a and b if both elements exist.
Write a method called makeRow that is passed two arguments: an int and a String. It returns a String containing n copies of s, concatenated in a row. For instance, if we call the method with makeRow(5, "*"), the method returns *****.
Write a JAVA program that finds the temperature that is the same in both Celsius and Fahrenheit
Implement a class Quiz that implements the Measurable interface.
Write an employee payroll program that uses polymorphism to calculate and print the weekly payroll for your company. There are three types of employees - hourly, salaried, and salaried plus commission. Each type of employee gets paid using a diffe..
Encrypt and decrypt the message using Caesar cipher
Compare Swing Java GUI components to AWT components. Explain at least one way the components are similar and at least one way they are different.
project will be to implement a shopping cart class with user interface (UI) that contains main() in Net Beans. The UI class will be used to perform user input/output and to invoke the appropriate methods of shopping cart class. When your program star..
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