Answer / saurabh

it is a example of overloading:-
class Overload {
void test(int a) {
System.out.println("a: " + a);
}
void test(int a, int b) {
System.out.println("a and b: " + a + "," + b);
}
double test(double a) {
System.out.println("double a: " + a);
return a*a;
}
}
class MethodOverloading {
public static void main(String args[]) {
Overload overload = new Overload();
double result;
overload.test(10);
overload.test(10, 20);
result = overload.test(5.5);
System.out.println("Result : " + result);
}
}

Answer / binod kumar

IF WE HAVE SAME METHOD NAME WITH DIFFERENT TYPES OF PARAMETERS THEN IT IS KNOWN AS METHOD OVERLOADING.
EXAMPLE----------->

class A
{
void sum(int a,int b)

{
int s=a+b;
System.out.println("Sum of a+b is:" +s);

}
void sum(int x,int y,int z)
{
int s2=x+y+z;
System.out.println("Sum of x+y+z is:" +s2);

}
}

class ovrloading
{

public static void main(String str[])

{
A a=new A();
a.sum(10,20);
a.sum(10,20,30);
}
}
IN GIVEN EXAMPLE WE HAVE SUM METHOD WITH DIFF PARAMETERS.
OUTOUT WILL BE------->
Sum of a+b is: 30
Sum of x+y+z is: 60

Answer / sagar

i think partial operator overloading is possible in java

Why we override equals() method?

0 Answers  

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Is void a keyword in java?

0 Answers  

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what are the uses of Class class and what it returns? explain it with the example code.

1 Answers  

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Is nullpointerexception checked or unchecked?

0 Answers  

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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,

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For which statements we use a label?

3 Answers   Wipro,

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How does map works in java?

0 Answers  

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What does opcode mean?

0 Answers  

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if we give input as " hi how are you" then the output should be "uoy woh"...it should skip odd words in the input and should reverse even words from the end of string...can anyone help me to write this program in java

1 Answers  

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When you say String is immutable, what do you mean by that? Say I have String s = "Ness" s= s+"Technologies"; What will happen? If the value gets appended, then what is the meaning of immutable here?

5 Answers   Ness Technologies,

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what is Thread priority?

4 Answers   Tech Mahindra, Wipro,

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Can we have multiple classes in a single file?

0 Answers  

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