In the first round, there are 30 aptitude and 30 java
questions. We are suppose to finish both the papers within
60 minutes.
I cleared this round.
Next was test for programming skills.
In this section, Some 7 n's were asked.
1.
What is the difference b/w sleep(1000) and wait(1000)
2.
what is the diff b/w static block and static function?
3.
Write a program to validate IP address using string
tokenizer.
4.
Write a program to create singleton class
5.
write a function to reverse the string
6.
Write a prog to print prime nos upto n. EX: If n=9, It shld
print 1,2,3,5,7
7. One program on collections- Write a program to print no.
of times a number is repeating in an array.
EX- {1,3,1,2,5,7,3,7,34,3,8,3}
It should print: 1- 2 times
3- 4 times and so on
7. Write a func to print fibonocci series
After this I had technical interview, which went on for.
60 mins or so. There were qn's about multi threading,
Exception handling and collection classes.
Knowledge about collections was very important for the
post I was interviewed for.
how to make a index.jsp for running the site in internet
and find an error for connection with weblogic server and
java that give an error invalid object name.and how to
maintain session.
what is the diffrence between insurance and telecom domain?
196
We are seeing so many videos/audios as many web sited. But
question is these videos or audios are stored in Databases (
Oracle, Mysql, Sybase,... ) or stored any file directory
from there they will give the link for that? Pls explain and
give sample code to achieve this one? Thanks, Seenu.
Question 5 [15]
Consider the following classes, illustrating the Strategy
design pattern:
import java.awt.*;
abstract class Text {
protected TextApplet tA;
protected Text(TextApplet tApplet) {
tA = tApplet;
}
abstract public void draw(Graphics g);
}
class PlainText extends Text {
protected PlainText(TextApplet tApplet) {
super(tApplet);
}
public void draw(Graphics g) {
g.setColor(tA.getColor());
g.setFont(new Font("Sans-serif", Font.PLAIN, 12));
g.drawString(tA.getText(), 20, 20);
}
}
class CodeText extends Text {
protected CodeText(TextApplet tApplet) {
super(tApplet);
}
public void draw(Graphics g) {
g.setColor(tA.getColor());
g.setFont(new Font("Monospaced", Font.PLAIN, 12));
g.drawString(tA.getText(), 20, 20);
}
}
public class TextApplet extends java.applet.Applet {
protected Text text;
protected String textVal;
protected Color color;
public String getText() {
return textVal;
}
public Color getColor() {
return color;
}
public void init() {
textVal = getParameter("text");
String textStyle = getParameter("style");
String textColor = getParameter("color");
if (textStyle == "code")
text = new CodeText(this);
else
text = new PlainText(this);
if (textColor == "red")
color = Color.RED;
else if (textColor == "blue")
color = Color.BLUE;
else
color = Color.BLACK;
}
public void paint(Graphics g) {
text.draw(g);
10
}
}
The Text class is more complicated than it should be (there
is too much coupling between the
Text and TextApplet classes). By getting rid of the
reference to a TextApplet object in the
Text class and setting the colour in the paint() method,
one could turn the Text class into an
interface and simplify the strategy classes considerably.
5.1 Rewrite the Text and PlainText classes to do what is
described above. (6)
5.2 Explain the consequent changes that are necessary to
the TextApplet class. (4)
5.3 Write an additional strategy class called FancyText (to
go with your simplified
strategy classes) to allow fancy text to be displayed for
the value "fancy" provided
for the style parameter. It should use the font Font
("Serif", Font.ITALIC, 12).
(3)
5.4 Explain what changes are necessary to the TextApplet
class for this. (2)
21
Hi frnds iam new to Java Kindy any one can provide or me
Servlets Example code and can explain to me flow of servlets
and as Jsp and Struts and provide to me some sample example
on these 3 topic flow,code example,and tutorials,and related
websites which i can refer....thanks in advance..........
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