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Groups > comp.lang.java.programmer > #5372

The greeting code in Java

From Saeed Amrollahi <amrollahi.saeed@gmail.com>
Newsgroups comp.lang.java.programmer
Subject The greeting code in Java
Date 2011-06-19 06:05 -0700
Organization http://groups.google.com
Message-ID <f61fee62-589e-4ad1-a9ef-a54e2b589e5b@s9g2000yqm.googlegroups.com> (permalink)

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Dear all
Hi

I'm a C++ programmer and I started to learn Java. After famous "Hello
World"
program, the obvious code is "Say hello to specific people". Program
asked
user's name, then print a greeting message. The C++ code is:
#include <iostream>
#include <string>
Using std::cin;	using std::cout;	using std::string;
int main()
{
  // ask for the person's name
  std::cout << "Please enter your first name: ";
  std::string name;	// define name
  std::cin >> name;	// read into name
  // write a greeting
  std::cout << "Hello, " << name << "!" << std::endl;

  return 0;
}
I tried to write the simplest code in Java and I ended up with the
following:

package Greeting;
import java.io.*;

public class Main {

    public static void main(String[] args) throws IOException {
        System.out.print("Please enter your first name: ");
        String name = new String();
        Reader r = new InputStreamReader(System.in);
        for (char ch; (ch = (char)(r.read())) != '\n'; name += ch) {}
        System.out.println("Hello, " + name);
    }
}

What are the problems of my code and how can I write
a better one. Please throw some light.

TIA,
  -- Saeed Amrollahi

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Thread

The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 06:05 -0700
  Re: The greeting code in Java rossum <rossum48@coldmail.com> - 2011-06-19 17:36 +0100
    Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 12:15 -0700
      Re: The greeting code in Java Martin Gregorie <martin@address-in-sig.invalid> - 2011-06-19 19:46 +0000
        Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 22:34 -0700
          Re: The greeting code in Java Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2011-06-23 11:43 +0300
        Re: The greeting code in Java Martin Gregorie <martin@address-in-sig.invalid> - 2011-06-20 10:13 +0000
          Re: The greeting code in Java Michael Wojcik <mwojcik@newsguy.com> - 2011-06-22 09:29 -0400
      Re: The greeting code in Java Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-06-19 16:00 -0400
      Re: The greeting code in Java Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-06-19 16:05 -0400
        Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 22:40 -0700
      Re: The greeting code in Java rossum <rossum48@coldmail.com> - 2011-06-19 22:28 +0100
  Re: The greeting code in Java Roedy Green <see_website@mindprod.com.invalid> - 2011-06-19 21:14 -0700
  Re: The greeting code in Java Roedy Green <see_website@mindprod.com.invalid> - 2011-06-19 21:23 -0700
  Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-20 19:20 +0000
    Re: The greeting code in Java Ney André de Mello Zunino <zunino@softplan.com.br> - 2011-06-22 15:55 -0300

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