we have two threads..both the threads are reading the
data.. is there any need of synchronization
there?...justify it?

Answer Posted / babu

sychronization is used to execute only one thread or one
block ata time.if your not declare sychronized in the method
there is chance to execute the mixed data i.e.; to threads
start at atime.

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is join () in java?

733


How do you check if a string contains only numeric digits?

878


What is the collection interface?

816


What do you mean by JVM?

810


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)

2717


Can we have multiple catch block for a try block?

792


What is blank final variable?

803


Can the interface be final?

774


Explain the features of interfaces in java?

754


What is the difference between the direct buffer and non-direct buffer in java?

798


What are the Main functions of Java?

853


Can memory leak in java?

797


What are keyboard events?

852


What is a databasemetadata?

732


Are functions objects in java?

807