The----of the Sunwen Tutorial C # advanced 11

Tutorial Sunwen Tutorial----C # Advanced
(11)
Mrfat@china.com
OK, I came back, I wrote so much in front of, and compared with Java enough, now I use the example of my own experiment, to see the C # This is called java# of the next generation of programming languages and Java how much difference.

First we set up a C # program file Cs1.cs, and then build a Java source program file Cs1.java. Their content is:

Cs1.cs:

Using System;
public class cs1{
public static void Main () {
Console.WriteLine ("I Am sunwen!");
Sunwen mysunwen=new Sunwen ();
Console.WriteLine (Mysunwen.name);
}
}


Class sunwen{
Public String name= "chenbin!";
}

Cs1.java:

Import system.*;

public class cs1{
public static void Main (String args[]) {
System.out.println ("I am Sunwen,how are you!");
Sunwen mysunwen=new Sunwen ();
System.out.println (Mysunwen.name);
}
}

Class sunwen{
String name= "chenbin!";
}


OK, let's run these two programs. During the compilation process, we found that C # is indeed much faster than Java. (not to say m$) in fact, the output of two programs is the same, are:

I am sunwen!
chenbin!

One important difference is that a row is PUBLC string name= "chenbin!", while in Java it is a string name= "chenbin!". If we remove this public in Cs1.cs, we will have an error, because in C #, the default is protect, and therefore cannot be accessed outside the class, without any range modifiers.

This is one of the important differences. And there is: if we put cs1.cs this C # program in a public class CS1 changed to public class CS2, save, and then compile, you can see that the program runs normally. And in Java, this obviously doesn't work because Java rules , there can be only one public class in a file, and the name of the class must be exactly the same as the file name. This is another difference, in C #, it is the main method to locate the portal. If a program does not have a method named Main, it will have "errors that cannot be found". Do not write main main yo, Xi hee, I often make such a mistake.

All right, that's it, let's talk about it later!

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