What do you mean by local class?

0 Answers  

---

What is escape analysis algorithm in JVM and how garbage collection actually worked n how it transfer the objects from one kind of space to other?

0 Answers  

---

what are depricated methods in threads and explain the lifecycle methods

5 Answers   CTS,

---

Can I declare class as static or private?

0 Answers  

---

Explain different ways of creating a thread. Which one would you prefer and why?

0 Answers  

---

Can we declare a static variable inside a method?

0 Answers  

---

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)

0 Answers   TCS,

---

how tha garbage collector know that the object will be deleted? on which algorithm the garbage collector works? what is the working principle of garbage collector? How manay types of garbage collectors r there?

1 Answers   HP, SparkTG,

---

Do I need java for windows 10?

0 Answers  

---

what are upcasting and downcasting?

5 Answers  

---

What is meant by object oriented programming – oop?

0 Answers  

---

What are the different tags provided in jstl?

0 Answers  

---