Answer / chandu

read() method is used to read the information charector
wise fron streamer classes

Answer / mohammed salim

we use the read() method to read a character using
BufferedReader in Input/Output streams....

Answer / simo ouali

The read() function reads a specified number of bytes from a
file handle and stores the data in a scalar variable.

What does nullpointerexception mean?

0 Answers  

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Is simpledateformat safe to use in the multithreaded program?

0 Answers  

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Is there is any difference between a scrollbar and a scrollpane?

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What is left shift and right shift?

1 Answers  

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What is mvc in java?

0 Answers  

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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)

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I want to persist data of objects for later use. What’s the best approach to do so?

0 Answers  

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What is the middleware?

2 Answers  

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What are different types of multitasking?

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How many types of interfaces are there?

0 Answers  

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What does int argc char * argv [] mean?

0 Answers  

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what is mean by method signature?

8 Answers   Satyam,

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