Comparação Java (J2SE 5.0) e C# parte 3

Accessibility keywords
public
private
protected
static

// Inheritance
class FootballGame extends Competition {
  ...
}

// Interface definition
interface IAlarmClock {
  ...
}

// Extending an interface 
interface IAlarmClock extends IClock {
  ...
}

// Interface implementation
class WristWatch implements IAlarmClock, ITimer {
   ...
}

Accessibility keywords
public
private
internal
protected
protected internal
static

// Inheritance
class FootballGame : Competition {
  ...
}

// Interface definition
interface IAlarmClock {
  ...
}

// Extending an interface 
interface IAlarmClock : IClock {
  ...
}

// Interface implementation
class WristWatch : IAlarmClock, ITimer {
   ...
}

class SuperHero {
  private int mPowerLevel;

  public SuperHero() {
    mPowerLevel = 0;
  }

  public SuperHero(int powerLevel) {
    this.mPowerLevel= powerLevel;
  }

  // No destructors, just override the finalize method
  protected void finalize() throws Throwable { 
    super.finalize();   // Always call parent's finalizer  
  }
}

class SuperHero {
  private int mPowerLevel;

  public SuperHero() {
     mPowerLevel = 0;
  }

  public SuperHero(int powerLevel) {
    this.mPowerLevel= powerLevel; 
  }

  ~SuperHero() {
    // Destructor code to free unmanaged resources.
    // Implicitly creates a Finalize method.
  }
}

SuperHero hero = new SuperHero();

hero.setName("SpamMan");
hero.setPowerLevel(3);

hero.Defend("Laura Jones");
SuperHero.Rest();  // Calling static method

SuperHero hero2 = hero;   // Both refer to same object
hero2.setName("WormWoman");
System.out.println(hero.getName());  // Prints WormWoman

hero = null;   // Free the object

if (hero == null)
  hero = new SuperHero();

Object obj = new SuperHero();
System.out.println("object's type: " + obj.getClass().toString());
if (obj instanceof SuperHero)
  System.out.println("Is a SuperHero object.");

SuperHero hero = new SuperHero();

hero.Name = "SpamMan";
hero.PowerLevel = 3;

hero.Defend("Laura Jones");
SuperHero.Rest();   // Calling static method

SuperHero hero2 = hero;   // Both refer to same object
hero2.Name = "WormWoman";
Console.WriteLine(hero.Name);   // Prints WormWoman

hero = null ;   // Free the object

if (hero == null)
  hero = new SuperHero();

Object obj = new SuperHero(); 
Console.WriteLine("object's type: " + obj.GetType().ToString());
if (obj is SuperHero)
  Console.WriteLine("Is a SuperHero object.");

private int mSize;

public int getSize() { return mSize; }
public void setSize(int value) {
  if (value < 0)
    mSize = 0;
  else
    mSize = value;
}

int s = shoe.getSize();
shoe.setSize(s+1);

private int mSize;

public int Size {
  get { return mSize; }
  set {
    if (value < 0)
      mSize = 0;
    else
      mSize = value;
  }
}

shoe.Size++;

No structs in Java.

int c = System.in.read();   // Read single char
System.out.println(c);      // Prints 65 if user enters "A"

// The studio costs $499.00 for 3 months.
System.out.printf("The %s costs $%.2f for %d months.%n", "studio", 499.0, 3);

// Today is 06/25/04
System.out.printf("Today is %tD\n", new java.util.Date());

int c = Console.Read();  // Read single char
Console.WriteLine(c);    // Prints 65 if user enters "A"

// The studio costs $499.00 for 3 months.
Console.WriteLine("The {0} costs {1:C} for {2} months.\n", "studio", 499.0, 3);

// Today is 06/25/2004
Console.WriteLine("Today is " + DateTime.Now.ToShortDateString());

import java.io.*;

// Character stream writing
FileWriter writer = new FileWriter("c:\\myfile.txt");
writer.write("Out to file.\n");
writer.close();

// Character stream reading
FileReader reader = new FileReader("c:\\myfile.txt");
BufferedReader br = new BufferedReader(reader);
String line = br.readLine();
while (line != null) {
  System.out.println(line);
  line = br.readLine();
}
reader.close();

// Binary stream writing
FileOutputStream out = new FileOutputStream("c:\\myfile.dat");
out.write("Text data".getBytes());
out.write(123);
out.close();

// Binary stream reading
FileInputStream in = new FileInputStream("c:\\myfile.dat");
byte buff[] = new byte[9];
in.read(buff, 0, 9);   // Read first 9 bytes into buff
String s = new String(buff);
int num = in.read();   // Next is 123
in.close();

using System.IO;

// Character stream writing
StreamWriter writer = File.CreateText("c:\\myfile.txt");
writer.WriteLine("Out to file.");
writer.Close();

// Character stream reading
StreamReader reader = File.OpenText("c:\\myfile.txt");
string line = reader.ReadLine();
while (line != null) {
  Console.WriteLine(line);
  line = reader.ReadLine();
}
reader.Close();

// Binary stream writing
BinaryWriter out = new BinaryWriter(File.OpenWrite("c:\\myfile.dat"));
out.Write("Text data");
out.Write(123);
out.Close();

// Binary stream reading
BinaryReader in = new BinaryReader(File.OpenRead("c:\\myfile.dat"));
string s = in.ReadString();
int num = in.ReadInt32();
in.Close();