The activation of a remote object occurs when a client makes a method call on that object. Why is this a better option than pre-loading things that are farther away?
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The activation of a remote object occurs when a client makes a method call on that object. Why is this a better option than pre-loading things that are farther away?
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- Why is it necessary to implement each and every method that is included in an interface when you are doing something as simple as implementing it?Task 1: Docking We would like to define a universal interface for our equipment and drones for docking. This way, when we develop new vehicles or stations we can implement the universal interface and know that it will behave in the same way. Instructions Create a Java interface called Dockable which has the following methods specified: a method called canDock that takes no parameters and returns a boolean a method called dock that takes a Drone as a parameter and returns an integer Task 2: Drones and Stations Now we want to test our docking interface, but first we want to define an abstract class for our drones from which we will model all of our designs after. Instructions Create an abstract class called Drone that has the following properties: a private attribute called name of type String a private attribute called weight of type double appropriate getters/setters for the attributes an abstract method called printInfo an abstract method called calculateTotalWeight that…When implementing an interface, why do you need to implement every single method in the interface?
- Does a constructor have any means of indicating to a client that it cannot correctly set up the new object’s state? What should a constructor do if it receives inappropriate parameter values?Design a program in Visual Basic.net languages to test a username and password using a method users information: username: OMAR Password: ADlreMlpfeN1 Second user username: MOHAMED Password: 12lre34pfe56 When the user write username: OMAR and Password: ADMIN1 or write username: MOHAMED and Password:123456 open another Form.Climber is a class that has been defined, and the variable cat refers to a Climber instance. With an argument of 4, call the method stairs on the instance referred to by cat.This is a python script.
- Object Oriented Programming: 213COMP, 214COMP (Feb-2022) Assignment- I [10 marks] Academic honesty: O Only pdf file accepted & student ID, will be your upload file. O Student who submit copied work will obtain a mark of zero. O Late work or attach file by email message not allowed. Q1: Write the signature for a method that has one parameter of type String, and does not return a value. Q2: Write the signature for a method that has two parameters, both of type Student, and returns an int value. Q3: Write the constructor's headers of the followings? new Student (202101156, “Ahmed"); new Address(51, "jazan university","CS&IT" ); new Grade(true, 505235600, 4.5); Q4: a) Write a class Student that define the following information: name, stid , age. b) Explain a mutators (setters) and accessors(getters) methods for each attributes(fields). c) Add three constructors: • with empty constructor. one parameter constructor (name of student) two parameters constructor (name and stid) d) Create two…What is the usage of the spawned object?Design an interface named Encryptor that has a single (abstract) method named encrypt with oneString argument named message. The method should return a String (which will be the encryptedmessage).Design a class named EncryptorOne that implements the Encryptor interface, and with one intinstance variable named shift. The constructor should have one parameter to initialize the shift.Implement the method encrypt so that each letter of the message sent as the argument (withlowercase letters) is shifted by the value in shift. For example, if shift is 3, a will be replaced by d, bwill be replaced by e, c will be replaced by f, and so on with a wraparound (i.e. with shift 3, x will bereplaced by a, y will be replaced by b, and z will be replaced by c). The method should return themodified version of the message. (HINT: The value of a character literal is the integer value of thecharacter in the Unicode character set. So, adding an integer (say, shift) to a character and type-casting the…
- Why must you implement all interface methods?In Java, declaring a class abstract is useful ... When it doesn't make sense to have objects of that class. To prevent developers from further extending the class. When default implementations of some methods are not desirable. When it makes sense to have objects of that class.Write PHP code for a class that contains three private variables and a method that consumes those variables and which displays an output. One of the variables must be a date/time class instance and another variable must be an array
