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Re: The greeting code in Java

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On Sun, 19 Jun 2011 06:05:53 -0700 (PDT), Saeed Amrollahi
<amrollahi.saeed@gmail.com> wrote:

>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
Stream readers are more often used for binary input.  For text input
people tend to use the java.util.Scanner class.

  public static void main(String[] args) {
    System.out.print("Please enter your first name: ");
    Scanner sc = new Scanner(System.in);
    String name = sc.nextLine();
    System.out.println("Hello, " + name);
  }

rossum

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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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