. Differentiate between instance and local variables.



. Differentiate between instance and local variables...

Answer / nashiinformaticssolutions

For instance, variables are declared inside a class, and the limited to only a specific object.
A local variable can be anywhere inside a method or a specific block of code. Also, the scope is limited to the code segment where the variable is declared.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Core Java Interview Questions

What does exclamation mean in java?

1 Answers  


How to know the host from which Applet is originated?

1 Answers   Wipro,


What is close method? How it's different from Finalize & Dispose?

1 Answers   InfoAxon Technologies,


What are aggregate functions explain with examples?

1 Answers  


How do you remove an element from an arraylist in java?

1 Answers  


What is the difference between serialization and deserialization?

3 Answers   ABC,


Why is singleton class used?

1 Answers  


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)

1 Answers  


List interface?

2 Answers  


Does java allow default arguments?

1 Answers  


Is math class static in java?

1 Answers  


whats is inheritance?

15 Answers   CTS, HCL,


Categories