Answer Posted / raghava

OOOOOO!NOooooooooo.

is a relationship is (inheritence)

has a relationship is (composition or Assocation)

Example:
Has a relation

public class Address
{
String street;
String city;

.......

}

public class Person
{
String name;
Address address; //has a relationship
}

What is communist flag?

964

---

Is 0 an even number?

927

---

What is difference between synchronize and concurrent collection in java?

989

---

Explain about interrupt() method of thread class ?

1063

---

Can we override a variable in java?

945

---

How does a cookie work in Servlets?

789

---

What are the advantages of passing this into a method instead of the current class object itself?

1617

---

What is tostring () method?

951

---

What are the various access specifiers in java?

946

---

What comes to mind when someone mentions a shallow copy in java?

1062

---

How to read and write image from a file ?

994

---

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)

2229

---

What is the meaning of I ++ in java?

1099

---

What is meant by structural programming?

966

---

What is the difference between a static and a non-static inner class in java programming?

984

---