Interested to Buy Any Domain ? << Click Here >> for more details...
What is the difference between Integer and int?
- 10 Answers
- 29815 Views
- Infosys, I also Faced
- E-Mail Answers
Answer Posted / tapan kumar
int is a primitive type by the int we can set and read the
value but Integer is a wrapper class type u can use for
finding the length and for size .
| Is This Answer Correct ? | 4 Yes | 4 No |
Post New Answer View All Answers
What is a ?
Can you inherit from an abstract class java?
How hashset works internally in java?
What is difference between pointer and reference?
What are the two environment variables that must be set in order to run any java programs?
what do you mean by java annotations?
What is object class in java?
Which one will take more memory: an int or integer?
What are scalar data types?
What is the maximum size of arraylist in java?
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)
What is an eror in java?
What is the difference between static and non-static variables in java programming?
Is .net better than java?
What is meant by data hiding in java?
