CSE 3302 Assignment 3Due: 30 Sep 2010, 9:30am1 Generics in Java[10 pts] Consider this Java class:class Cell<T> {private T t;public Cell(T t) { this.t = t; }public void set(T t) { this.t = t;}public T get() { return t; }public boolean equalTo(Cell<T> other) { return this.t.equals(other.t); }public Cell<T> copy() { return new Box<T>(t); }}Which statements in the following code produce a compile-time error? Briefly explain.Cell<?> cell = new Cell<String>("hello");cell.set("world");cell.set(null);String s = cell.get();Object o = cell.get();boolean equal = cell.equalTo(cell);equal = cell.equalTo(new Cell<String>("hello"));Cell<?> cell1 = cell.copy();Cell<String> cell2 = cell.copy();Cell<? extends Number> cell3 = new Cell<Integer>(new Integer(1));cell3.set(new Integer(2));Number n = cell3.get();Cell<? super Integer> cell4 = new Cell<Integer>(new Integer(1));cell4.set(new Integer(2));Integer i = cell4.get();Object p = cell4.get();12 PrototypesConsider the following JavaScript code:function Point(x, y) { this.x = x; this.y = y; }Point.prototype.add = function(p) { return new Point(x + p.x, y + p.y); }var z = new Point(0,0)(a) [5 pts] Draw a sketch of the layout in memory of the object stored in z. Include its fields and anyother objects z itself transitively has references to.(b) [5 pts] Write JavaScript code to create a single new object that behaves exactly like z but alsocontains a color field.(c) [5 pts] Create a constructor for ColorPoint that returns an object containing x, y, and colorfields. The expression new ColorPoint(0,1,"blue") should create a new object with the x, y,and color fields initialized to. 0, 1, and "blue", respectively.(d) [5 pts] Now, create a constructor for ColorPoint that returns an object containing a color field,but which delegates to a Point object for the x and y
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