Why arraylist is not synchronized in java example?

1070

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What is the use of tracing Service in plugin development?

642

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What all are the documents need to check for a supplier payment?

1631

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How do I create a virtual folder in windows 10?

975

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What is the point of the factory pattern?

431

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In ARRAY processing, what does the DIM function do?

1178

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which is the better form java or .net?exactly when we have to choose particcular 1 among them?

1781

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What is action in c# 3.5?

974

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How does agile communication differ from tradition software engineering communication? How it is similar?

1911

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3.2 Consider the following class: public class Point { protected int x, y; public Point(int xx, int yy) { x = xx; y = yy; } public Point() { this(0, 0); } public int getx() { return x; } public int gety() { return y; } public String toString() { return "("+x+", "+y+")"; } } Say you wanted to define a rectangle class that stored its top left corner and its height and width as fields. 3.2.1 Why would it be wrong to make Rectangle inherit from Point (where in fact it would inherit the x and y coordinates for its top left corner and you could just add the height and width as additional fields)? (1) 8 Now consider the following skeleton of the Rectangle class: public class Rectangle { private Point topLeft; private int height, width; public Rectangle(Point tl, int h, int w) { topLeft = tl; height = h; width = w; } public Rectangle() { this(new Point(), 0, 0); } // methods come here } 3.2.2 Explain the no-argument constructor of the Rectangle class given above. 3.2.3 Write methods for the Rectangle class to do the following: • a toString() method that returns a string of the format "top left = (x, y); height = h; width = w " where x, y, h and w are the appropriate integer values. • an above() method that tests whether one rectangle is completely above another (i.e. all y values of the one rectangle are greater than all y values of the other). For example, with the following declarations Rectangle r1 = new Rectangle(); Rectangle r2 = new Rectangle(new Point(2,2), 1, 4); the expression r2.above(r1) should give true, and r2.above (r2) should give false. (You can assume that the height of a rectangle is never negative.) (2) (5)

2982

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Is join an inner join?

976

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Can a partition be archived? What are the advantages and Disadvantages?

756

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What is ms word ms excel and powerpoint?

642

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How to cover server model particulars in http response header?

891

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What is double spending? Is it possible to double spend in a blockchain system?

1

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