hi1 – Hello, You! (easy version) – Computer Science by Example

hi1 – Hello, You! (easy version)

Hello, <You>!

Write a program that reads a single name from the standard input device and prints Hello, <Name>! on the standard output device. The standard input and output devices are usually the keyboard and screen of a command line session.

$ ./hi1
John
Hello, John!

$ ./hi1
Mary
Hello, Mary!

Input and Output

Input consists of a single line with a person’s given name without spaces. This name is composed of letters of the English alphabet and contains at most 30 characters.

Output should contain a single line with Hello, <Name>!. This line is proper and should be terminated by a line break.

Example input 1

John

Example output 1

Hello, John!

Example input 2

Mary

Example output 2

Hello, Mary!

Scoring

Submit your solution to be graded according to the following list:

2/10: produces a “hello” message for the above example test cases
4/10: produces a “hello” message for the above example test cases in the correct format
10/10: produces a “hello” message in the correct format for any name

Hints

If you do not know where to start, read the Computer Science by Example book. First, setup your environment then learn the programming basics. Here are some hints:

Automated judge: Keep in mind that when your program is submitted it will not be run by a human but instead by an automated judge. Instructions should be followed exactly or the judge will not give you a full score.

Your program should not print messages like Please type your name:. Instead, just print the required Hello, <Name>! message. Watch out for the correct punctuation and casing and be sure to include a line break.
Exit immediately: Your program should print Hello, <Name>! then exit immediately. Do not use system("pause"), sleep(1) or anything of sorts.
Redirecting input: On most systems (Windows / Linux / OS X), it is possible to redirect the standard input and output of your program to files, like so:
```
 $ ./hi1 <inputfile.txt >outputfile.txt
```
So, if you create a plain text file with a name, the above command will produce another plain text file with a hello message.

This is actually how the automated judge runs your program.
Windows users: On Windows, you should not use ./ to run a program in the current directory, do instead:
```
 C:\> hi1.exe
 Joseph
 Hello, Joseph!
```
Easier exercises: If you have difficulty with this exercise, try the hello exercise first.

try first: hello

try also: repeat1

try next: age1

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