Answer Posted / kala

for all characters in java used 2 bytes.

is it possible to instantiate the math class?

1101

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How an object is serialized in java?

1039

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What is the difference between normal report & matrix report?

1161

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Explain the transient field modifier?

1088

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What is fail first in java?

1295

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Can a static class have a constructor java?

1034

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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)

3032

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What is the mapping mechanism used by java to identify IDL language?

1050

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What is size () in java?

1150

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What are some examples of variable costs?

1007

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EDS (Electronic Data Systems India Pvt Ltd) at Chennai on 16-12-2006.

9276

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Do you know why doesn't the java library use a randomized version of quicksort?

994

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What an i/o filter?

1086

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What do you understand by the term string pool?

1070

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Write a program to show whether a graph is a tree or not using adjacency matrix.

1150

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