Please code the following in: JAVA!
Please use many comments so I can understand.
Full points will be awarded, thanks in advance!
The LineSegment Class-Class Composition ("Has a") & Privacy Leaks Find your Point2D.java class that you built in the previous lab. The Point2D should store an x and y coordinate pair, and will be used to build a new class via class composition. A Point2D has a x and a y, while a LineSegment has a start point and an end point (both of which are represented as Point2Ds). This is similar in spirit to your next homework, where we'll build a few simple classes called Money and Date, and then build a meta-class or container class that is composed of both a Money and Date object - we'll call this a Bill object, and we can state that a Bill has a Money and has a Date object inside of it. Note that when a class offers getters/setters for a primitive, pass-by-value ensures that changes to copies of a private primitive won't affect the originalp from methods (as we do with getters and setters), objects are shared due to pass-by-value. This results in a privacy leak: objects you marked as private are still directly accessible due to the memory semantics involved with pass-by-reference. As a result, when we get and set objects, extra care in the form of cloning objects is required to avoid such privacy leaks. In the end, we'll copy our objects and emulate pass-by-value with our objects so that people who try to "get" our private objects actually get a clone of the object - if they destroy the clone, your private state objects will not be affected. Pay special attention to the getters/setters associated with your start and end points; notice how eclipse incorrectly writes this code, too. The LineSegment Class-Class Composition ("Has a") & Privacy Leaks Find your Point2D.java class that you built in the previous lab. The Point2D should store an x and y coordinate pair, and will be used to build a new class via class composition. A Point2D has a x and a y, while a LineSegment has a start point and an end point (both of which are represented as Point2Ds). This is similar in spirit to your next homework, where we'll build a few simple classes called Money and Date, and then build a meta-class or container class that is composed of both a Money and Date object - we'll call this a Bill object, and we can state that a Bill has a Money and has a Date object inside of it. Note that when a class offers getters/setters for a primitive, pass-by-value ensures that changes to copies of a private primitive won't affect the originalp from methods (as we do with getters and setters), objects are shared due to pass-by-value. This results in a privacy leak: objects you marked as private are still directly accessible due to the memory semantics involved with pass-by-reference. As a result, when we get and set objects, extra care in the form of cloning objects is required to avoid such privacy leaks. In the end, we'll copy our objects and emulate pass-by-value with our objects so that people who try to "get" our private objects actually get a clone of the object - if they destroy the clone, your private state objects will not be affected. Pay special attention to the getters/setters associated with your start and end points; notice how eclipse incorrectly writes this code, too
