how to overload << and >> operator in c++

Wipro,

What is 2*2?

If P is the population on the first day of the year, B is the birth rate, and D is the death rate, the estimated population at the end of the year is given by the formula: The population growth rate is given by the formula: B – D Write a program that prompts the user to enter the starting population, birth and death rates, and n, the number of years. The program should then calculate and print the estimated population after n years. Your program must have at least the following functions: 1. growthRate: This function takes its parameters the birth and death rates, and it returns the population growth rate. 2. estimatedPopulation: This function takes its parameters the current population, population growth rate, and n, the number of years. It returns the estimated population after n years Your program should not accept a negative birth rate, negative death rate, or a population less than 2. please answer my question ....

Microsoft,

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what's the difference between abstract class and concreate class? what's the meaning of standard template library(STL)?

what's the difference between function overloading and function overiding?

what's the difference between abstract class and concreate class? what's the meaning of standard template library(STL)?

Q1. A. What is unary operator? List out the different operators involved in the unary operator. B. What is an adjust field format flag? Q2. A. Distinguish between a # include and #define. B. Can a list of string be stored within a two dimensional array? Q3. A.Explain how a pointer to function can be declared in C++? B.List the merits and demerits of declaring a nested class in C++? Q4. A. What are the syntactic rules to be avoid ambiguity in multiple inheritence? B. Explain the operation of overloading of an assignment operator. Q5. A. Explain how the virtual base class is different from the conventional base classes of the opps. B. Explain how an exception handler is defined and invoked in a Program. Q6. A. What is a binary file? List the merits and demerits of the binary file usagein C++. B. Write short notes on Text Manipulation Routines. C. Write bites in Turbo c++ Header (“Include”) Files.

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HOW TO GET "H1B" -VISA 4 USA FOR MY SON?HE HAD COMPLETED "MS"(IT)FROM AUSTALIA 2007.I AM WORKING IN U.S.A.

Describe the My Computer and My Documents folders; identify the elements that are present in every Window.

Describe how to safeguard a system through acquisition of an antivirus Program and systematic backup.

Describe the elements of Microsoft Word screen. Write down steps for creating, saving, retrieving, editing and printing a document.

How Find, Replace and Go To commands ca be used to substitute one character string for another? Explain with the heIp of an example.

How can you create a bulleted list, numbered list and an outline by using bullets and numbering command. Explain with the help of example.

Explain how to insert a hyperlink in to an Excel worksheet and save a Word document as a Web page.