Java Programming

working of java ring in detail.

import java.io.*;


public class calculator{
public static void main(String[] args) throws Exception{
int x, y;
BufferedReader b = new BufferedReader(new InputStreamReader(System.in)) ;
System.out.println("Enter two numbers for operation:");


x = Integer.parseInt(b.readLine());
y = Integer.parseInt(b.readLine());
System.out.println("1. Add");
System.out.println("2. Subtract");
System.out.println("3. Multiply");
System.out.println("4. Divide");
System.out.println("enter your choice:");
int a= Integer.parseInt(b.readLine());
switch (a){
case 1:
System.out.println("Enter the number one=" + (x+y));
break;
case 2:
System.out.println("Enter the number two=" + (x-y));
break;
case 3:
System.out.println("Enetr the number three="+ (x*y));
break;
case 4:
System.out.println("Enter the number four="+ (x/y));
break;
default:
System.out.println("Invalid Entry!");
}






}
}

#include <stdio.h>

#include<conio>

void main ()

{int a,i:,

printf("\n The Multiplication table of 5 is n"):,

For(i=1;i=20;i++)

Printf("%d",a*i);

getch();

}

Java was originally developed by James Gosling at Sun Microsystems.

It is impossible to conjure an accurate number. However, an assumption was made with the Digital Universe Study found in the related link, stating there were an estimated 1.8 Billion Terabytes in existence.

class demo {

public static void main(String[] args) { if(args.length == 2) {

System.out.println(args[0] + args[1]);

} else {

System.out.println("Usage: demo Str1 Str2");

}

}

A subclass invokes its base class constructor at the point of instantiation. That is; you cannot instantiate a subclass object without first constructing its base class, which is done automatically.

java was invented by james gosling.

You can combine more than one condition with AND or with OR. How this is written depends on the particular programming language.

You can also have several cases; example in Java:

if (condition1)

{

command1;

}

else if (condition2)

{

command2;

{

else

{

command3;

}

Yes, the derived class includes the memory of the base class. The derived class inherits everything in the base class, data and function, and provides additional data and function as needed.

serial and parellel transmission

' ' would be the character for a space in Java.

Follow the backslash with another backslash:

System.out.println("\\ " \");

will display \ " \ on the screen.

iButtons have an advantage over conventional smart cards in term of durability and longevity.

iButtons are rugged enough to withstand harsh environments. iButton uses java as a common programming language.

A logical statement is one that will return a boolean or a logical "True" or "False" output. It is used in cases where conditions need to be executed.

For ex: lets say you write a system that checks the age of the visitors to a bar, the system should only allow people who are over 18 yrs of age. So the logical condition will be like below:

if(age > 18) then "Let the Customer Enter"

else "The customer is a minor, send them back to stay out of trouble"

It will have the default access which means - this class will be accessible only within the current package.

No, that would be a constructor. A constructor is involved in creating objects.

Yes, provided those functions are declared virtual. If they are not virtual, the base class method is implicitly called instead. The base class should be thought of as a common interface to the objects that derive from it, while the derived objects are "more specialised" forms of the base class, which can override the virtual base class methods to produce more specific behaviour. The less derived the object, the less specialised it becomes.

Certain functions can be predicted for all derived objects, but cannot be implemented in the base class. For instance, all shapes can be drawn, but a shape base class cannot implement a Draw() function unless it knows what type of shape it actually is. But by deriving specific shapes such as circles and squares from the shape class, they can each provide their own implementations for the Draw() function, which can then be declared pure-virtual in the base class. This not only ensures that every derived shape provides its own Draw() method, but also ensures that no instances of shape can be created other than by derived objects. The shape then becomes abstract; so shape is a conceptual object while circles and squares are actual objects.

It's where a person reads each action of another person as if there were no prior context.

Objects without their declarations known as Anonymous Objects. these are known as use & throw objects because these are died after one time use.

because of the gravity of the earth