Answer / steffy

ERROR:
Erroor will be occur in compile time.
EXCEPTION:
Exception will occured in running time.

Answer / milan kumar

Exception means abnormal condition which is occur in our
code during program execution.
but error means it can't handle by the system.for
example,thread dead,out of memory,overflow.

Answer / ved

Errors are the abnormal conditions which can not be handled
by your program and the program will immediately interrupt
while exceptions are those abnormal conditions which your
program can handle with the techniques of error handling.
Errors can not be handled and will stop uour program...

Answer / ankur bhargav

exception mins run time
error mins your logical error in you programming

Answer / salman khan

the spellings of both r different

Answer / vinay

Exceptions can be system defined or CAN BE USER DEFINED
(means user can enforce exceptins) whereas run time errors
are thrown by system only.

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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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